VMWare vSphere: Install, Configure, Manage v5.5 – Flashcards
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What are the three main functions of VSphere?
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-Pooled Networking and Security -Pooled Storage -Pooled computing
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What are 4 benefits of virtualization?
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-Easy to relocate -Easy to manage -Supports legacy applications -Consolidates servers
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What happens when CPU Contention occurs?
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ESXi host time-slices the physical processors across all virtual machines so each virtual machine runs as if it has a specified number of virtual processors
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What are the two key virtual networking components in virtual architecture?
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-Ethernet adapters -Switches
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How does a virtual switch connect to the external network?
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Via outbound Ethernet adapters, called vmnics
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How many hosts can touch a virtual data store?
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32
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Which protocols does VMFS use for interfacing to storage resources?
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FC, FCoE, iSCSI
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What does VMFS provide so that it can easily become part of a business continuity or disaster recovery solution?
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Encapsulation of the entire file system
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What VMWare solution enables you to create a cloud?
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vCloud Director
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What are two main purposes of vSphere in cloud computing?
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-Hides the complexities of the physical resources from the consumer of those resources -Provides managed access to the resources on which to run the virtual machine
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What are advantages of private clouds?
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-Self-service provisioning -Elasticity of resources -Rapid and simplified provisioning -Secured multitenancy -Improved use of IT resources -Better control of IT budgets
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What are the main difference in advantage of public clouds versus private clouds?
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Customer companies no longer have IT as an ongoing overhead expense
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What VMWare solution offers a solution to aid in constructing and managing hybrid clouds?
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vCloud Hybrid Service
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What are the two GUIs designed for interacting with a vSphere environment?
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-vSphere Web Client -vSphere Client
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What can we do with vSphere Client's Configuration tab?
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-View the host's processor and memory configuration -Configure a host's networking and storage. -Add a host's license key -Configure the host as a Network Time Protocol (NTP) client -Configure or modify the primary and secondary DNS servers -Modify the ESXi host's security profile
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What security features does ESXi provide?
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-Memory hardening -Kernel module integrity -Trusted platform module
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Which vSphere interfaces can an ESXi host be accessed through?
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-vSphere Web Client -vSphere Client -vSphere API -vSphere Management SDK -Common Information Model (CIM)
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What low-level interface is accessible through the console and used primarily for initial basic ESXi host configuration?
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Direct Console User Interface (DCUI)
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What does the VMM do?
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It has the job of presenting virtual hardware to the virtual machine and receiving requests
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What does the VMKernel do?
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Receives requests from virtual machines for resources from the VMM and presents the requests to the physical hardware
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What key actions does the DCUI allow an administrator with R00t access to do?
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-Set a root password -Enable or disable lockdown mode
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What limits host management to vCenter Server and user root access to DCUI only?
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Lockdown mode
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What network settings does DCUI allow to be managed?
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-Host name -IP configuration -DNS servers
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What network IP settings can DCUI manage?
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-IP address -Subnet mask -Default gateway
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What troubleshooting services can be enabled by DCUI?
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-ESXi Shell -SSH
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What NTP versions does ESXi 5 support?
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3 and 4
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What DNS and Routing settings can be configured?
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-Host name and domain -DNS server addresses and search domains -Default VMkernel gateway
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What's the recommended way to manage the ESXi host?
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vSphere Client
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What is the VM config file extension?
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.vmx
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What is the VM swap file extension?
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.vswp
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What is the VM BIOS file extension?
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.nvram
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What is the VM log file extension?
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.log
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What is the VM template file extension?
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.vmtx
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What is the VM RAW device map extension?
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-rdm.vmdk
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What is the VM disk descriptor file extension?
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.vmdk
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What is the VM disk data file extension?
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-flat.vmdk
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What is the VM suspended state file extension?
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.vmss
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What is the VM snapshot data file extension?
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.vmsd
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What is the VM snapshot state file extension?
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.vmsn
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What is the VM delta file extension?
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-delta.vmdk
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What two files make up a virtual disk?
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-The .vmdk file, which describes the virtual disk's characteristics -The -flat.vmdk file , which contains the virtual disk's data
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How many PCI vSphere DirectPath devices can be added to a virtual machine?
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6
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Which specification enables the implementation of SATA storage controllers in both real and virtual hardware?
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Advanced Host Controller Interface (AHCI)
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What dictates the operating system functions that a virtual machine supports?
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Virtual hardware version
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What is the maximum number of virtual CPUs?
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64
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What is the maximum about of RAM?
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1TB
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What is the maximum number NICs?
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10
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Which virtual disk type has fast creation time, fully preallocated blocks that are zeroed when each block is first written to?
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Thick Provision Lazy Zeroed
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Which virtual disk type has slow creation time, and a high chance of contiguous file blocks that are zeroed at creation?
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Thick Provision Eager Zeroed
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Why type of disk type is dynamic and fastest to create?
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Thin Provision
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What are two types of independent disk modes?
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Persistent and nonpersistent
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Which virtual NIC adapters are supported by most 32-bit guest operating systems?
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vlance (PCNet32), vmxnet
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Which virtual NIC adapter is high performance and available only for some guest os's
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e1000-e1000e
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Which VMware drivers are only available with VMware Tools?
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vmxnet, vmxnet2, vmxnet3
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What information is typically needed for a VM configuration?
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-Name -Datastore -OS and version -Disk Parameters -Networking Info
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What VMware utility synchronizes the time in the guest OS with the time in the host OS?
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VMware Tools Service
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What VMware Tools component provides Perfmon monitoring options?
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VMware device drivers
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What VMware tools component enables you to copy and past test between host and guest?
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VMware user process
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What VMware tools component automates guest OS operations?
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scripts
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What are some common features of VMware tools?
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-Device drivers -VM heartbeat -Time sync -VM shutdown -Perfmon DLL choices
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What is OVF?
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An industry standard base VM template specification
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How many hosts are possible on a vCenter Server instance?
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1000
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How many powered-on VM are possible per vCenter Server instance?
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10,000
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What are four components that vCenter architecture relies on?
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-vSphere Client / Web Client -vCenter Server database -Single Sign-on (SSO) -Managed hosts
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What agent does vCenter Server provide access to the ESXi host through?
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vpxa
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What process does vCenter Server communicate with an ESXi host through?
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hostd
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What lets you create tags and assign them to one or more objects in the vCenter Server inventory?
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Inventory Object Tagging
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What is the default management interface port for the vCenter?
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5480
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What are the four main benefits of vVCenter?
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-Simplified deployment -Lower cost of ownership -No change of user experience -Embedded database
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What's the minimum disk space required on a host in vCenter Server?
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7 Gb
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What's the maximum disk space required on a host in vCenter Server?
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82 Gb
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What port is used for vSphere Web Client?
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9443
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What does the application server run to feed the user interface data to the browser?
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Flex Client
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What vCenter authentication service secures the VMware cloud infrastructure platform?
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Single Sign-On (SSO)
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How does vCenter SSO allow vSphere software components to communicate?
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Secure tokens
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What are three vCenter SSO benefits?
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-Faster and less complex -Trust without authentication -Multi-instance and multi-site
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What are four vCenter SSO features?
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-Support for open standards -Support for Active Directory and LDAP -User visibility to permissible instances -No need for 'Linked Mode'
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What is Identity Source?
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authentication directory service
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What is the Default Domain?
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vsphere.local
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What are the three primary vCenter SSO services?
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-Security token service -Identity Manager Service -VMware directory service (vmdir)
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What does the vCenter Security Token Service (STS) do?
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-Allows SSO clients to use services -Issues security tokens
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What does the vCenter Admin service do?
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-Allows admins to configure SSO -Manage users and groups
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What does the vCenter Identity Manager server do?
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-Manages all identity sources -Services all authentication requests
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What is the identity source created when vCenter SSO is installed?
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VMware Directory Service (vmdir)
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What are the three different types of ports on a standard virtual switch?
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-VMkernal ports -uplink ports -VM port groups
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What is a VM port group?
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A template that stores configuration information to create virtual switch ports on a virtual switch.
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What are VMkernel ports used for?
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Connecting VMkernel services to the physical network.
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What is an uplink port used for?
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Connecting to a physical NIC
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what are two types of virtual switches?
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-vNetwork standard vNetwork distributed
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What kind of switch provides a consistent network configuration for virtual machines as they migrate across multiple hosts?
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vNetwork distributed
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What is the maximum number of virtual switch ports per standard switch?
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4088
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What is the maximum number of virtual switch ports per host?
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4096
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How does a vNetwork distributed switch enable consistent network configuration for virtual machines as they migrate?
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It functions as a single virtual switch across all associated hosts
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What solution configures a vNetwork distributed switch?
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VMware vCenter Server
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What is a benefit of NIC teaming?
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Provides automatic distribution of packets and failover
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What is a VLAN?
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software-configured broadcast domain
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What are three virtual switch tagging policies?
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-packets are tagged on exit -packets are untagged on return -minimal impact to performance
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How does ESXi provide VLAN support?
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Providing a port group a VLAN ID
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What are three network policies?
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-Security -Traffic Shaping -NIC Teaming
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What are three security policy settings for a NIC?
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-Promiscuous mode -MAC address changes -Forged transmits
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What are configurable in traffic shaping policy?
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-Average rate -Peak rate -Burst size
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What is burst size?
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burst_size = bandwidth*time
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What is configurable in NIC teaming policy?
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-Load balancing -Network failure detection -Notify switches -Failback -Failback Order
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What load balancing method maps a VM traffic to a specific physical NIC?
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Originating Virtual Port ID
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What load balancing method maps a VM traffic to a specific physical NIC based on the virtual NIC's MAC address?
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Source MAC Hash
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What load balancing method maps a VM traffic to a NIC based on its source and destination IP address?
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IP-Hash
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How can network policies set at the standard level be overridden?
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At the port level
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What is a logical storage unit that can use disk space on the physical device or span several physical devices?
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Datastore
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What are two types of datastores?
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VMFS, NFS, except NFSv4
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What clustered file system allows multiple ESXi hosts to read and write to the storage device simultaneously?
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VMFS
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What is the subblock size in VMFS-5?
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8 kb
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How does a VMFS datastore make efficient use of storage for small files?
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Subblock addressing
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What is the locking mechanism used in the VMFS to ensure that the same virtual machine is not powered on by multiple serves at the same time?
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Block level distributed locking
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What storage devices can VMFS be deployed?
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-DAS -Fibre Channel -iSCSI
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What file-sharing protocol do ESXi hosts use to communicate with a NAS device?
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NFS
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What size are lock file WRITE requests on an NFS server?
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84-bytes
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What kind of file is stored in a VMFS volume that acts as a proxy for a raw physical drive?
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Raw Device Map (RDM)
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How are storage devices identified on ESXi hosts?
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-SCSI ID -Canonical Name -Runtime Name
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What type of iSCSI target-discovery method requires the initiator to know in advance all the targets?
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Static discovery
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What type of iSCSI target-discovery requires an initiator to send a request to the server to get a list of targets?
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Dynamic discovery
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What protocol do iSCSI initiators use for authentication?
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CHAP
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what are two types of CHAP authentication?
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-Unidirectional -Bidirectional
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How does an ESXi host access the NFS server?
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-VMKernel port on virtual switch -NFS server IP / host name
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What is a good way to create a highly available NAS architecture?
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-Redundant NICs -Redundant switches -NIC teaming
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What FC protocols does ESXi support?
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-16Gb FC -FCoE
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Which type of zoning is done on an FC switch, and controls LUN visibility per WWN?
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Soft zoning
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Which type of zoning controls SP visibility per switch port?
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Hard zoning
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What type of zoning controls target presentation and tells an ESXi host whether a target exists?
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Fabric zoning
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What type of network adapter is used for Hardware FCoE?
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Converged Network Adapter
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What type of network adapter is used for Software FCoE?
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NIC with FCoE support
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In vSphere, how does a network adapter appear?
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vmnic
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In vSphere, how does the Fibre Channel component appear?
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vmhba
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What is the main difference between CNA and FCoE NIC?
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Better performance with CNA
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What's the maximum size for a VMFS datastore?
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64 TB
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When is it good to use a VMFS datastore?
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-Large files -Storing VM
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When is it good to use a RDM?
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-Storage array snapshots -Large amounts of external data
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when does a datastore become overcommitted?
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Total provisioned space of thin-provisioned disks is greater than the size of the datastore
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How to prevent overcommitting a datastore?
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-Monitor datastore capacity -Manage datastore capacity
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What are two ways to dynamically increase a VMFS datastore?
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-Add an extent (LUN) -Expand datastore within extent
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How do you shrink a datastore?
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You cannot shrink a datastore
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What is the maximum number of LUNs (extents) a datastore be expanded across?
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32
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How many times can a LUN be expanded?
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Infinite
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What is a best practice before making storage allocation changes?
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-Rescan to ensure all hosts see current storage -Quiesce I/O -Record unique identifier
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What are three VMware storage traffic path selection policies?
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-Round Robin -Most Recently Used (MRU) -Fixed
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What is a scalable path selection policy?
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Round Robin
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What path selection policy ensures availability?
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MRU
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What storage system leverages and aggregates local solid-state drives as cache and local hard disk drives (HHDs) to provide a clustered datastore that can be utilized by virtual machines?
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VMware Virtual SAN
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How many datastores exist per VMware Virtual SAN cluster?
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1
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What are benefits of VMware Virtual SAN?
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-Multiple policies per datastore -Virtual SAN capability -Scale-out storage -Resiliency -SSD caching -Converged compute and storage
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What's the minimum number of hosts in a Virtual SAN running ESXi 5.5?
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3
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What's the maximum number of hosts that can use VMware Virtual SAN?
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8
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What is a Virtual SAN object?
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Logical volume that has data and metadata distributed across the entire cluster
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What modes can a Virtual SAN be configured?
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Manual/Automatic
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How is a virtual SAN created?
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-Storage from multiple hosts -Multiple disks in cluster
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How are Capabilities, Requirements, and Policies related in a Virtual SAN?
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Datastores are used by leveraging CAPABILITIES to meet virtual machine REQUIREMENTS by creating POLICIES
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How are Virtual SAN objects configured to offer availability?
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RAIN
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What are two main VM Storage techniques to store objects?
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-Mirroring -Striping
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What is VM storage mirroring?
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-number of stripes per object -number of HDD across each replica
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What is VM striping?
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-number of failures tolerated -number of hosts, network failures, and disk failures tolerated
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What is CPU hot-plug?
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Adding a new CPU while VM is running
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What is memory hot-add?
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Adding memory while VM is running
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What is Physical Compatibility mode?
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Allows guest OS to access hardware directly
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What is Virtual compatibility mode?
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Enables the LUN to behave as if it were a virtual disk
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What windows tool enables a guest OS to use newly allocated space?
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diskpart
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How big can a thin-provisioned disk be inflated?
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To its full creation size
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What kind of migration occurs when a VM is turned off?
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Cold
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What kind of migration occurs when a VM is suspended?
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Suspended
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What kind of migration occurs when a VM is turned on?
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vMotion
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what kind of migration occurs when the VM files are moved while the VM is turned on?
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Storage vMotion
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What should be done to the RDMs of a VM before and after a cold-migrate?
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Remove from configuration before, recreate them after
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What kind of migration occurs when a VM's files are moved to another datastore while powered on?
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Enhanced vMotion
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What kind of hardware elements are included in VM saved state information for a migration?
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-BIOS -Devices -CPU -MAC
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What are the main steps in a vMotion migration?
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1) VM memory state copied to target 2) VM is quiesced on source 3) VM initialized on target 4) Users access VM on target 5) Memory pages on source freed
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What are the VM requirements for a vMotion migration?
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-No connection to internal standard switch -No connection to virtual device with image loaded -No CPU affinity -Able to create swap on target if swap on source not accessible -RDMs accessible by target
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What are host requirements for a vMotion migration?
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-Visible to storage -GigE network -Identical port groups -Compatible CPUs
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How many concurrent vMotion migrations per VMFS datastore?
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128
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How many concurrent VMotion migrations on 1Gbps network?
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4
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How many concurrent vMotion migrations on a 10Gbps network?
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8
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How to display unknown CPU features of an ESXi host?
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CPU identification utility
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How are vMotion operations performed internally on the ESXi host?
answer
Data movers
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How are vMotion operations offloaded from the ESXi host?
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VMware API Array Integration (VAAI)
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How many parallel disk migrations per vMotion is possible?
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4
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How many concurrent vMotion operations per host?
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2
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how many concurrent vMotion operations per datastore?
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8
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What are limitations of Storage vMotion?
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VMDK must be in persistent mode, or be RDMs
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What vMotion feature enables a VM to change its datastore and host simultaneously, even if no shared storage in common?
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Enhanced vMotion Compatibility (EVC)
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What states are included in a VM snapshot?
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-Settings state -Disk state -Memory state
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What files are included in a VM snapshot?
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-Delta disk (delta.vmdk) -Memory state (.vmsn) -Disk descriptor (000#.vmdk) -Snapshot delta file (000#-delta.vmdk)
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What method cleans unneeded snapshot delta files from a datatstore?
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Snapshot consolidation
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What is a risk of not performing snapshot consolidation?
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Snapshot files might expand to size of datastore
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What are two ways of removing a VM?
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-Remove from vCenter inventory -Delete from disk
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What is a vApp?
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-A container for one or more virtual machines -Packages and manages related applications -Object in the vCenter Server inventory
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What ESXI security feature when enabled does not allow users other than vpxuser have authentication permissions?
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Lockdown mode
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What defines an action that can be performed?
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Privilege
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What defines a set of privileges?
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Role
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What defines the target of action?
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Object
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Who can perform actions?
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User/group
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What is the combination of a role, user/group, and object?
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Permission
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Which group's users are automatically assigned the Administrator role?
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ESX Admins
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What is a collection of privileges?
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Role
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What are characteristics of roles?
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-Allow users to perform tasks -Grouped in categories
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What roles are default?
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-No Access -Read-only -Administrator -VM power user -VM user -Resource pool admin -VMware Consolidated Backup user -Datastore consumer -Network administrator
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What is a logical abstraction for managing CPU and memory resources?
answer
Resource pool
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What are benefits of resource pools?
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-Flexible hierarchal organization -Isolation between pools -Access control and delegation -Separation of resources from hardware -Management of sets of VM running a multitier service
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What value guarantees the resource pool is given a certain proportion of CPU and memory resources?
answer
Shares
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What are the minimum amount of resources required by a resource pool?
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Reservations
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What are the maximum amount of resources required by a resource pool?
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Limits
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Which resource pool is the topmost?
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Root resource pool
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What is used to ensure that you cannot allocate resources that are not available?
answer
Admission control
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What resources be monitored in a VM?
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-CPU -Memory -Disk -Bandwidth
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What are the main steps in performance tuning methodology?
answer
1) Assess performance 2) Identify limiting resource 3) Make more resources available 4) Benchmark
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What resource monitoring tools are found in a Guest OS?
answer
-Perfmon Dll -iometer -Task Manager
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What resource monitoring tools are found outside a Guest OS?
answer
-Performance charts -Operations Manager -Hyperic -ESXI System logs -resxtop -esxtop
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What might be a diagnosis of a continuously high CPU usage?
answer
constrained CPU
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What might indicate a constrained CPU?
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-High CPU use in the guest -High CPU use for other VMs
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What are two disk latency data counters?
answer
-Kernel command latency -Physical device command latency
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What is disk latency counter that measures the average time spent in the VMkernel per SCSI command?
answer
Kernel command latency
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What is the disk latency counter that measures the average time the physical device takes to complete a SCSI command?
answer
Physical device command latency
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What is the collection interval frequency and samples for Real time?
answer
20 seconds, 180 samples
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What is the collection interval frequency and samples for Past day?
answer
5 min, 288 samples
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What is the collection interval frequency and samples for Past week?
answer
30 minutes, 336 samples
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What is the collection interval frequency and samples for Past month?
answer
2 hours, 360 samples
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What is the collection interval frequency and samples for Past year?
answer
1 day, 365 samples
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What are three statistics types?
answer
Rate, Delta, Absolute
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What are three types of Rollup?
answer
-Average -Summation -Latest
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What notification occurs in response to selected events or conditions that occur with an inventory object?
answer
Alarm
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How many receivers of SNMP traps in vCenter Server Notifications?
answer
4
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What alarm feature is used to track when triggered alarms are addressed?
answer
Acknowledge Alarm
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What vCenter solution collects performance data form each object at every level of the virtual environment?
answer
Operations Manager
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What functions does vCenter Operations Manager add to vSphere?
answer
-Combines ley metrics into a single risk score -Detects abnormalities -Provides information to environment changes -Graphs and charts
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What are the four releases of VCenter Operations?
answer
-Foundation -Standard -Advanced -Enterprise
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What components make up the Operations Manager?
answer
-Analytics VM -User Interface VM
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How is high availability ensured with VMware?
answer
-VM migration -Multiple I/O adapter paths -Load balancing -Fault tolerance -Disaster recovery tools
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What components does vCenter server rely on?
answer
-vCenter Server database -Authentication identity source
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What methods make vCenter Server available?
answer
-vSpehere High Availability -vCenter Server Heartbeat
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What is a highly available system?
answer
One that is continuously operational for an optimal length of time
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How much downtime per year corresponds to 99.99% availability?
answer
52 min
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How much downtime per year corresponds to 99.999% availability?
answer
5 min
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How much downtime per year corresponds to 99% availability?
answer
87 hours
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How much downtime per year corresponds to 99.9% availability?
answer
8.7 hours
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How many hosts per cluster enabled for vSphere HA?
answer
32
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How many VMs per host enabled for vSphere HA?
answer
512
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How many VMs per cluster enabled for vSphere HA?
answer
4000
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What does HA do when an ESXi host fails?
answer
Restarts the affected VMs on other hosts
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What does HA do when a VM stops sending heartbeats or the VM process (vmx) crashes?
answer
Restarts the VM
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What does HA do when an application fails?
answer
Restarts the affected VM on the same host
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When is VMware Tools required for HA?
answer
Application failure
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How can we create a redundant heartbeat on ESXi hosts?
answer
-NIC teaming -NIC redundancy
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What kind of ports are required for NIC teaming?
answer
VMKernel ports
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What may indicate a host failure?
answer
-No heartbeats -Unresponsive to Ping
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What is the recommended load-balancing policy for NIC teaming for redundancy?
answer
Route Based on Originating Port ID
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What network redundancy method uses a set of two NICs connected to separate physical switches?
answer
NIC redundancy
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What is a collection of ESXi hosts and guests configured to share resources?
answer
Cluster
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What Host Monitoring priority determines the relative order in which VMs are restarted after a failure?
answer
VM restart policy
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What Host Monitoring priority determines what happens when a host in an HA cluster loses its management network connection?
answer
Host isolation response
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What should be disabled during activities like network maintenance that might trigger host isolation response?
answer
Host monitoring
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What does enforcement of availability constraints preserve?
answer
Failover capacity
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What HA architecture domain is managed by the master host?
answer
Fault Domain
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How many concurrent fault domains can a host be in?
answer
1
question
How do candidate HA agents communicate during the election process?
answer
UDP
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What protocol do HA master and slaves communicate with after the master agent is determined?
answer
TCP
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What host monitors the health of VMs running locally?
answer
Slave
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When does a HA restart a VM?
answer
-Host has failed -Host is isolated
question
when is a host declared isolated?
answer
-Host is not receiving heartbeats -Host cannot ping isolation address
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How to minimize isolation events?
answer
- Redundant heartbeat networks - Redundant isolation addresses
question
What design principals helps mitigate isolation events?
answer
-FC over Fiber optic -Physical separation IP storage from management network
question
What vSphere solution provides high levels of availability with zero loss by using a backup virtual machine to recover for the failed virtual machine?
answer
Fault Tolerance (FT)
question
What technology ensures that dumplicate VMs stay synchronized allowing the workload to run on two different hosts simultaneously?
answer
vLockstep
question
What's the maximum number of fault-tolerant VMs on a single host?
answer
4
question
How to prevent the secondary FT VM from having insufficient CPU?
answer
Disable BIOS-based power management
question
What protects virtual machines natively by copying their disk files to another location where they are ready to be recovered?
answer
Replication
question
What must be defined in a replication configuration?
answer
-RPO -Target Datastore -Target folder or Resource Pool
question
What are some limitation of Replication?
answer
-Static images cannot be tracked -Only running VMs are replicated -Attached resources not replicated
question
What is the RPO of VM replication?
answer
15 min - 24 hours
question
Where should host be in order for DRS to make the best placement recommendations?
answer
migration network
question
What are three DRS automation levels?
answer
-Manual -Partially automated -Fully automated
question
What ensures all hosts in a cluster present the same CPU feature set to virtual machines, even if the actual CPUs on the hosts differ?
answer
Enhanced vMotion Compatibility (ECV)
question
What is a set of CPU features supported by every host in the cluster?
answer
Baseline
question
What are requirements for ESXi hosts in a cluster?
answer
-CPU from a single vendor -Hardware virtualization -Executation-disabled -Migration configuration
question
Where should the swap file be saved?
answer
Same directory as VM
question
What DRS rules make sure certain VMs are not together?
answer
Anti-affinity
question
What mode should a cluster host be put in so that it can be serviced?
answer
Maintenance Mode
question
What is the best method to improving virtual performance?
answer
1) DRS 2) Storage multipathing 3) NIC teaming 4) Resource pool limits and reservations 5) Modify VM 6) Traffic shaping
question
How does Update Manager reduce risk?
answer
-Reduces number of vulnerabilities -Eliminates security breaches that exploit old vulnerabilities
question
What are some Update Manager capabilities?
answer
-Cross-platform upgrades -Automated patch downloading -Baseline creation -Scanning -Remediation -Reduced reboots
question
What are five types of Update Manager baselines?
answer
-Host patch -Host extension -Host upgrade -Virtual machine upgrade -Virtual appliance upgrade
question
What is a baseline group?
answer
Consists of one upgrade baseline per type and one or more patch and extension baselines
question
What baseline type is a set of patches to apply to a host?
answer
Host patch
question
What are two types of patch baselines?
answer
-Fixed -Dynamic
question
How is automated Update scanning performed?
answer
Scheduled task
question
What is the minimum processor required for installing ESXi?
answer
Dual Core, 64-bit CPU, x86
question
What is the minimum amount of memory for an ESXI host?
answer
4 Gb
question
What kind of Ethernet controllers are required for ESXi?
answer
10 Gb, 40 Gb
question
What is the minimum amount of storage available on an ESXi host?
answer
5 Gb
question
Where can ESXI be booted from?
answer
SAN
question
What storage protocols does ESXI support for boot?
answer
-FC -FCoE -Hardware iSCSI -Software and dependent hardware iSCSI
question
How can ESXi be deployed?
answer
-Physical host -VM -Virtual Linux appliance
question
What are two SSO installation modes for ESXi?
answer
-Simple Install -Component install
question
What is the default supported database for vCenter Server?
answer
...
question
What are requirements before installing vCenter Server?
answer
-HW/SW requirements -Domain membership -Database created -Static IP assigned
question
What is VSA used for?
answer
Virtual Storage Appliance (VSA) provides shared storage
question
To which service group would the VMware VMsafe product best align?
answer
Security
question
What validates the virtual appliance OVF template prior to including it in the vCenter or ESXi inventory?
answer
vSpehere Web Client
question
Where can administrator configure layer 2 Ethernet security options?
answer
standard switch and the port groups
question
Which configuration step must you perform to access the NFS datastore on your ESXi host?
answer
Create a VM VMkernel port
question
Which SCSI storage device identifier in an ESXi host keeps a unique persistent naming for each LUN across system reboot?
answer
Canonical Name / NAA ID
question
An ESXi host is connected with active-active storage array using Fibre Channel and iSCSI controllers. In this situation what is the default native multipathing policy for storage load balancing?
answer
Fixed
question
An ESXi host is connected with active-passive storage array using Fibre Channel and iSCSI controllers. In this situation what is the default native multipathing policy for storage load balancing?
answer
MRU
question
Which locking protocol is used by the ESXi host to support the file locking of NFS-mounted files?
answer
.lck-
question
Which is the vSphere vStorage APIs used by VMware Data Recovery appliance for virtual machine data backup and recovery needs?
answer
vStorage API for Data Protection
question
Which vSphere vShield product allows you to setup firewalls at the virtual NIC level in a vSphere environment?
answer
vShield App
question
What is the default disk partition format used for the ESXi 5.0 host installations?
answer
GUID Partition Table (GPT) format
question
What percentage of virtual machines is software?
answer
100%
question
Which VMware product enables distributed storage architecture and allows multiple ESXi hosts with concurrent read/write access to the same shared resources?
answer
vSphere VMFS
question
What is the maximum PCI vSphere DirectPath devices can you add to a virtual machine?
answer
6
question
What location must be provided when importing a vCenter Server virtual appliance using the vSphere Client?
answer
Location of OVF Template
question
What is the maximum volume size supported by a VMFS datastore?
answer
62 TB
question
What is the maximum limit supported of simultaneous vMotion, cloning, deployment, or Storage vMotion access to a single VMFS-5 datastore?
answer
8
question
What is the minimum virtual machine hardware version in a vSphere that supports the change block tracking (CBT)?
answer
7
question
Which Active Directory group assigns Administrator role to its users on an ESXi host when ESXi host is configured to use Active Directory services?
answer
ESX Admins
question
How frequently is I/O load history checked when Storage DRS is enabled for automatic load balancing across multiple datastores?
answer
8 hours
question
Which vSphere feature allows you to view and manage the inventories of multiple vCenter Server instances?
answer
Linked Mode Group
question
In a physical infrastructure, a 1:1 relationship exists between the physical computer and the software that runs it. In this case, how much of the physical server capacity is in use?
answer
5-10 percent
question
When using the Create New Virtual Machine wizard for a typical configuration, which information will be required by an administrator?
answer
-Virtual machine name and inventory location -Datastore on which to store the virtual machines files -Guest operating system and version -Disk parameters for creating a new virtual disk: Disk size -Number of NICs, network to connect to, and network adapter type
question
Which component of the VMware vCenter architecture stores inventory items, security roles, resource pools, and performance data?
answer
vCenter Server Database
question
What are the maximum LUNs VMkernel scans for every target?
answer
256
question
What is the default block size used in a VMFS-5 datastore for storing large virtual disk files?
answer
1 MB
question
What is the maximum number of extents you can add to a VMFS datastore to grow its storage capacity?
answer
32
