Computer Networking Fundementals Final Exam - Flashcards

question

A router is considered to be a CSU/DSU.

answer

False

question

T-Carrier lines only require a CSU/DSU on the customer's side of the connection.

answer

False

question

Multiprotocol Label Switching (MPLS) supports both IPv4 and IPv6, as well as other network layer protocols.

answer

True

question

Link Control Protocol is responsible for the setup of a PPP connection, as well as the termination of a connection when it has ended.

answer

True

question

If a problem occurs after a successful login, Last Known Good Configuration will fix the issue.

answer

False

question

A protocol analyzer, such as Wireshark, gives the ability to listen in on network traffic as it moves through the Application layer to the Data Link layer and vice versa.

answer

True

question

In the problem-solving process, you should always devise a solution to the problem you are facing prior to determining the scope of the problem.

answer

False

question

The ping command is used to determine the path between two devices.

answer

False

question

Most SNMP managers allow the configuration of thresholds for generating alert messages to network administrators when those thresholds are exceeded.

answer

True

question

Your local ISP has provided you with a dedicated line that has a Committed Information Rate of 1.54 Mbps. What does this mean?

answer

1.54 Mbps is the guaranteed minimum transmission rate.

question

Select the true statement regarding analog and digital signals.

answer

Analog signals vary over time continually and can be represented by a sine wave, while digital signals are binary 1s and 0s using voltage levels.

question

When would you most likely NOT choose to use a leased line connection?

answer

when a nondedicated link is needed for backups

question

Which of the following is something X.25 does NOT offer?

answer

144 Mbps maximum throughput

question

What is the local loop, or last mile?

answer

the connection between the demarcation point and the CO

question

You're the network administrator for a large bean-bag chair company. You are presenting to your supervisor several reasons to make use of cloud computing for handling data processing. Which answer would be a valid benefit of using cloud computing?

answer

reduced physical plant costs

question

Which of the following terms describes the category of cloud computing in which a customer develops applications using development tools and infrastructure provided by the service provider?

answer

hosted platforms

question

Which of the following protocols is NOT used for Windows 7 VPN connections?

answer

SMTP

question

You are a network architect for an IT consulting company. One of your clients needs a WAN connection and has asked you about the disadvantage of a packet-switched WAN method. Which of the following is a disadvantage that applies?

answer

shared bandwidth

question

You have been asked to install a VPN remote access solution using Windows Server.What do you need to install?

answer

Routing and Remote Access Service (RRAS)

question

Which one of the following is NOT a typical SONET data rate?

answer

OC-9001

question

What would an Asynchronous Transfer Mode (ATM) network be best suited for?

answer

carrying voice data and time-sensitive information

question

Which cloud computing category allows a company to quickly provision additional disk space?

answer

hosted infrastructure

question

Which cloud computing category refers to the use of software hosted on a service provider's network, and is usually subscription based?

answer

hosted applications

question

Which statement about Multiprotocol Label Switching (MPLS) is true?

answer

MPLS works with any network layer protocol.

question

What is the signaling method used to allocate time slots for each channel in a T-carrier line called?

answer

Time Division Multiplexing (TDM)

question

The company you work for currently has ISDN service in place. Your supervisor wishes to know what sort of ISDN service is being used so that better alternatives can be considered. He tells you that the service has two B-Channels and a D-Channel. What ISDN format do you have?

answer

Basic Rate Interface (BRI

question

The plain old telephone service is a good example of what kind of WAN technology?

answer

circuit switched

question

Although a frame relay connection is established in much the same way that a T1 connection is, which of the following is an important distinction between the two technologies?

answer

T1 uses point to point, while frame relay makes use of virtual circuits.

question

Part of SONET's flexibility comes from its ability to be arranged in several different physical topologies. Which of the following is NOT a possible SONET topology?

answer

fault tolerant bus

question

You are currently troubleshooting a network issue with your ISP's customer support agent. The agent requests that you open up command prompt and type "ping 127.0.0.1". What does this accomplish?

answer

tests that the local IP stack is functioning

question

Almost immediately after a server migration project, employees are complaining that they can't reach the Internet. You sit down at a machine and try to ping a well-known website, which fails. You then try to ping a known-public IP address, which succeeds. What is most likely the issue?

answer

DNS settings are incorrect.

question

You have just connected a brand new workstation to your local network. As per company policy, you have used a static IP configuration. However, all attempts to reach the Internet from the workstation fail. You have verified that you can communicate with servers and other workstations on the local network, and that you are the only one having an issue reaching the Internet. What is most likely the issue?

answer

incorrectly configured gateway address

question

Which command will display the configured IP address, default gateway, and DNS servers for a Windows workstation?

answer

ipconfig /all

question

Your current backup schedule involves differential backups of all data Monday through Saturday, with a full backup on Sunday. Last Saturday, one of your storage drives failed prior to running the daily backup. What must be done to recover the data on the failed drive?

answer

The last full backup should be restored first, followed by the last successful differential backup prior to the drive failure.

question

Your current backup schedule involves incremental backups of all data Monday through Saturday, with a full backup on Sunday. Last Saturday, one of your storage drives failed prior to running the daily backup. What must be done to recover the data on the failed drive?

answer

The full backup must be restored first, followed by all incremental backups in sequential order leading up to the day of failure.

question

Following a massive infection of your network by a virus, you have been tasked with developing preventive measures for keeping the network infection free. What would be an effective preventive measure?

answer

Install an enterprise-based anti-virus solution.

question

Which of the following statistics should a network baseline report include

answer

hard drive utilization

question

You receive a phone call from a co-worker telling you that "the network is down." Just as you are about to look into the issue, you receive several more phone calls from other co-workers. Using the problem-solving process, what must be done first to effectively troubleshoot the issue?

answer

Determine what the problem is, and then figure out who has been affected on your network

question

You recently completed a network overhaul over the weekend. Everything seems to be functioning properly until you receive a swarm of help desk support requests, all originating from one specific floor in your building. After a few minutes on the phone with those affected, you determine that no one has indicator lights active on their NICs. What is most likely the problem?

answer

A network switch has not been powered on.

question

Which of the following is NOT a good practice for performing upgrades?

answer

ignoring updates to new releases

question

Which statement is true regarding differential / incremental backups?

answer

Incremental backups copy all files changed since the last full or incremental backup and marks files as backed up.

question

Select the utility inside of Windows that allows the user to recover a previous system state. This utility monitors drives and partitions, as well as registry settings and system files.

answer

System Restore

question

When using tape backup, what should be done to ensure that the backups are viable?

answer

Verify data can be restored.

question

The trial-and-error method should NOT be used under which of the following situations?

answer

The server is your public Web server and is currently hosting all of your business.

question

Traceroute would be best suited for which of the following tasks?

answer

locating bottlenecks in a network

question

What does the ping message "Destination host unreachable" message mean?

answer

The pinged IP address is on the same network, but an ARP reply was not received.

question

What does the ping message "Destination net unreachable" mean?

answer

A router in the path from the source to the destination determined that the destination network does not exist.

question

What kind of software would you use to view and troubleshoot protocol specific problems such as TCP retries caused by missed acknowledgements, or duplicate acknowledgements that cause network slow-down?

answer

protocol analyzer

question

A junior network administrator tells you that he can ping a DNS server successfully, but he has not tested domain name lookups. What utility on the command line would you suggest your colleague use next?

answer

nslookup

question

End of Multiple Choice / Beginning of Completion

answer

...

question

________________ is a PVC packet-switching technology that offers WAN communication over a fast, reliable, digital link. It was developed from X.25 and ISDN technology.

answer

Frame relay

question

If a portion of a T-Carrier line is used for one purpose and a different portion for another purpose, the line has been ____________.

answer

fractionalized

question

A __________ is a device that allows a computer, which works with digital information, to communicate over lines that use analog signals.

answer

modem

question

The CPE must be able to send data in the correct format onto the connection that makes up the ___________ and receives data coming from that connection.

answer

local loop

question

________ is a cell-based packet-switching technology in which the cells are of a fixed length rather than typical packet-based systems that use variable length packets.

answer

ATM

question

Most manufacturers store their technical support problems and solutions in a database called a knowledge base or a _______________________ document.

answer

frequently asked questions

question

To eliminate the potential problems caused by power fluctuations, especially on servers, you can install _________________

answer

uninterruptible power supplies

question

A ____________ copies selected files to the selected media without marking files as backed up.

answer

copy backup

question

The ________ Windows command is used to determine the network path between two devices.

answer

tracert

question

Whether your problem and proposed solution affect an entire network or just a few users, you must devise a ____________ so that you can return things to their original state if the solution doesn't work.

answer

rollback plan

question

Group accounts make it easier for an administrator to manage user rights and permissions.

answer

True

question

In Linux, every user that is created automatically belongs to a default group named Users.

answer

False

question

Windows can be installed on an extended partition that has been formatted with the NTFS file system.

answer

False

question

An event log entry that is an error is marked with a red circle with a white exclamation point in the center.

answer

True

question

RAID that is configured as a level 0 requires two drives because it copies data to both drives at the same time, making an exact duplicate of the data.

answer

False

question

A security policy should clearly state the desired rules, even if they cannot be enforced.

answer

False

question

You don't need to physically secure your servers as long as you use a good strong password for your accounts.

answer

False

question

A DoS attack ties up network bandwidth or services, rendering resources useless to legitimate users.

answer

True

question

A Trojan is a self-replicating program that masks itself as a useful program but is actually a type of malware.

answer

False

question

In a file system that uses FAT or FAT32, the only file security option that is available is the sharing permissions

answer

True

question

You are the network administrator for a company. The company's policy is that the users are allowed to set their own passwords but that they must change their password every 30 days. You have just received a call from a user who can't log on because she forgot her password. After you change her password, which of the password options listed would you set in the user's account so that she will have to change the password when she logs on using the password you assigned?

answer

A. User must change password at next logon.

question

In regards to a user account, what does a white circle with a black arrow indicate?

answer

B. The account is disabled.

question

You are creating a new group for the Sales department. All of the users that will be in this group will need to have access to the same resources. What scope would you use for this group?

answer

C. global

question

In Linux, what is the command for viewing a file's contents onscreen?

answer

B. cat

question

A user logs on to her account and is able to makes changes to her desktop, like adding a background and screen saver. However, when she logs off and logs back on, the desktop reverts to its original configuration. What type of user profile does this user have?

answer

D. Mandatory

question

The partition that contains the Windows OS files is known as the what type of partition?

answer

C. Boot

question

A disk must be formatted as what type of disk if you want to access additional features such as disk spanning?

answer

D. Dynamic

question

If you need to limit the amount of data users can store on a volume, you would implement which of the following?

answer

B. Disk quotas

question

When a file is encrypted, what color does the file name appear in Windows Explorer?

answer

A. Green

question

Which of the following is NOT a Linux file system?

answer

D. SFS

question

Where are the waiting print jobs stored until they can be sent to the print device?

answer

D. print queue

question

What tool would you use to view error messages that are generated by system services or applications?

answer

B. Event Viewer

question

What is RAID level 1 also called?

answer

B. disk mirroring

question

What level of RAID does not provide fault tolerance?

answer

A. 0

question

How many disks are needed to implement a RAID 1 + 0?

answer

C. 4

question

Employees in the Sales department need to be able to access the sales share on the file server. They will need to have the ability to create files, read them, and make corrections or additions. Which of the following share permissions should the group be given?

answer

A. Change

question

The ultimate goal of network security is to protect which of the following?

answer

D. all of the above

question

What is a policy that defines the methods involved when a user logs on to the network called?

answer

C. authentication

question

Which of the following should not be a concern when discerning the level of security that is required in a network?

answer

A. how difficult it would be to enforce a password policy

question

In Windows 7, what is the maximum length that a password can be?

answer

D. 128

question

If the minimum password length on a Windows system is set to zero, what does that mean?

answer

B. The user can use a blank password.

question

Which one of the following passwords meets Windows password complexity requirement?

answer

C. N3tworking1O1

question

Which protocol is used to encrypt data as it travels a network?

answer

C. IPSec

question

Which form of authentication involves the exchange of a password-like key that must be entered on both devices?

answer

D. preshared key

question

When using BitLocker to encrypt your entire disk, which mode must you use if your system is not configured for TPM support?

answer

B. USB key mode

question

If you need to implement a VPN on a Windows Server 2008 system, what server role must be installed to access routing and remote access services?

answer

A. network policy and access services

question

Which VPN implementation needs no additional configuration to be allowed access through a firewall?

answer

A. SSTP

question

What process, available on most routers, will help improve security by masking the internal IP address of the transmitting device?

answer

B. NAT

question

What is the generic term used to describe programs that are designed to cause harm or disruption to a computer system?

answer

B. malware

question

What is a type of malware that is so difficult to detect and remove that most experts agree that it is better to backup your critical data and reinstall the OS?

answer

A. rootkit

question

Which of the following is a type of malware that isn't self-replicating and is usually installed by the user without his knowledge. It's primary goal is to invade your privacy by monitoring your system and reporting your activities to advertisers and spammers.

answer

D. spyware

question

The 802.11i standard is the newest version of wireless security that uses more advanced encryption methods than the previous versions. What is it more commonly referred to as?

answer

D. WPA2

question

Which of the following is a scanner used as a tool to determine what possible points of entry exist that are open and vulnerable on your system?

answer

A. Port

question

Which of the following is a type of denial-of-service attack that involves flooding the network with broadcast messages that contain a spoofed source address of an intended victim?

answer

C. Smurf Attack

question

Which of the following are case sensitive?

answer

B. Windows password C. Linux logon name D. Linux password

question

Which of the following groups are special identity groups?

answer

B. authenticated users D. system E. self

question

Which of the following are standard NTFS permissions?

answer

A. List Folder Contents B. Read D. Write

question

When dealing with permissions in Linux, what are the three user types that can be assigned permissions?

answer

B. Group C. Other D. Owner

question

Which of the following can be used to secure data on disk drives?

answer

A. EFS D. BitLocker E. TrueCrypt

question

Firewall rules can be based on which of the following properties?

answer

A. source IP address C. protocol D. context

question

How the network resources are to be used should be clearly defined in a (an) ____________ policy.

answer

acceptable use

question

In Linux, passwords are stored in an encrypted format in the ____________ file, which is located in the /etc directory.

answer

shadow

question

____________ authentication uses keys that are generated by the OS instead of being manually entered by an administrator.

answer

Kerberos

question

____________ is a free open-source product that can be used to encrypt the contents of an entire drive.

answer

TrueCrypt

question

A ____________ is a type of Trojan program that hides in the operating system files and is extremely difficult to detect.

answer

rootkit

question

When Windows is first installed, two user accounts are created by default. One is the Administrator account, and the other is the ____________ account.

answer

Guest

question

A user logs on to the network from a different computer than they normally use, and they still have the same desktop as usual. This user's profile is called a ____________ profile.

answer

roaming

question

The ____________ file system supports a maximum file size of 2GB.

answer

FAT16

question

In Windows, the term for a computer that accepts job requests for a shared printer and sends them to the physical device is called a print ____________.

answer

Server

question

As a network administrator, it is a good idea to have a performance ____________, a collection of performance data from a time when the network is performing normally.

answer

baseline

question

File and printer sharing for Microsoft networks is an example of a network protocol.

answer

False

question

A network that has locations in different countries is considered a WAN.

answer

True

question

In order to find out your MAC address, you should open a command prompt and type ipconfig /all.

answer

True

question

What makes a computer a "server" is the fact that it has a server operating system installed on it.

answer

True

question

Each component of a computer is designed to perform only one specific task—either input, processing, or output.

answer

False

question

The XYZ company has two offices, one downtown, and a brand new office in the newer section of town. To connect the two offices, they will need a dedicated line, probably leased from the local phone company. What type of network will they be implementing to connect their two offices?

answer

c. MAN

question

Airwaves are an example of what type of network component?

answer

b. network medium

question

Windows 7, Windows Vista, and Windows XP are all examples of which of the following?

answer

b. client operating systems

question

What is one of the disadvantages of a peer-to-peer network compared to a server-based network?

answer

d. limited security

question

What command would you issue from a command prompt to see a listing of the computers in your workgroup?

answer

b. net view

question

What is one of the disadvantages of a server-based network compared to a peer-to-peer network?

answer

a. additional costs

question

For any device to communicate with the computer, either through input or output, it must have what special software installed?

answer

d. device driver

question

When data is being prepared for transmission onto the network, it is broken into small pieces and a header and trailer are added to each piece to help identify it. What is this process called?

answer

c. encapsulation

question

Every NIC is embedded with a unique address that consists of a 12-digit hexadecimal value. What is this address called?

answer

c. MAC address

question

What was the primary reason to create a network?

answer

d. all of the above

question

You are building a gaming computer and you want to install a dedicated graphics card that has a fast GPU and 1GB of memory onboard. You need to make sure that you have the right connector available on your motherboard. What type of connector would be appropriate?

answer

c. PCI-Express

question

You want a fast CPU for the new computer you are building and your motherboard only has one CPU socket. To increase the processing power, you need a CPU that provides more than one processor. What is this CPU called?

answer

a. multicore

question

Which component, located on the motherboard, carries out all the instructions provided by computer programs?

answer

d. CPU

question

You are the network administrator for a company and you want to separate the traffic from the accounting department from the rest of the network. However, the accounting department still needs to have access to other network resources. What type of network do you need to implement?

answer

b. internetwork

question

Which part of the network communication process is responsible for sending and receiving data to and from the network media?

answer

d. NIC driver

question

You're the network administrator for a company located in Arizona that has just opened an office in Texas. You need to make sure that the two locations can communicate. What type of network are you implementing?

answer

b. WAN

question

You have just started a new business. You need to have three to four workstations available for your employees who simply need to share some files and a printer, but you don't have a large budget. Security is not a major concern, but costs are. What type of network would be the most appropriate for your situation?

answer

c. peer-to-peer network

question

Which of the following are examples of output devices? (Choose all that apply.)

answer

a. monitor b. printer d. hard disk

question

Which of the following are examples of input devices? (Choose all that apply.)

answer

a. mouse c. DVD e. printer

question

The three basic functions of a computer are input, ____________, and output.

answer

processing

question

____________ components include devices such as printers, disk drives, network cards, and monitors.

answer

Output

question

A ____________ is a packet that has been encapsulated with the source and destination MAC addresses in the header and an error-checking code in the trailer.

answer

frame

question

There are two different network models. One of them, a peer-to-peer network, also is referred to as a ____________ network.

answer

workgroup

question

____________ is an operating system's ability to execute more than one process at a time.

answer

Multitasking

question

Before data is transmitted, it is broken into chunks of data and then encapsulated with the source and destination IP addresses to create a ____________.

answer

packet

question

When a NIC is in "promiscuous" mode, it will process only the frames in which the destination MAC address matches its own MAC address.

answer

False

question

Routers do not forward broadcast packets.

answer

True

question

If a router receives a packet and it does not have an entry in its routing table for the destination network, it will send the packet to its default route, if configured.

answer

True

question

The function of a repeater is to extend the range of an existing network.

answer

True

question

You cannot connect a hub to another hub unless it has an uplink port.

answer

False

question

When a frame is received, which component reads the source and destination MAC addresses, looks up the destination to determine where to send the frame, and forwards it out the correct port?

answer

b. switch

question

Why would you need to use a repeater?

answer

d. You need to add a group of computers to your network, and the distance is too far for normal means of communication.

question

Which of the following is NOT a function of a hub?

answer

b. transmits the signal to the correct port

question

How does a switch "learn" MAC addresses?

answer

c. The switch reads each frame and makes a note of where each MAC address came from.

question

Why is the use of a switch preferred over a hub?

answer

d. All of the above.

question

What does a switch store in its switching table?

answer

a. the source MAC address of a frame and the port it was received on

question

What is a packet called that is intended for only one individual computer?

answer

b. unicast

question

Just as a switch keeps records of MAC addresses that it has learned, so does your computer. What protocol does your computer use to learn MAC addresses?

answer

a. ARP

question

What does it usually mean when the activity light on a switch is blinking?

answer

c. It is communicating with the network.

question

What component of the computer provides it with a MAC address?

answer

b. NIC

question

A MAC address is composed of two 24-bit numbers. What does the first 24-bit number represent?

answer

d. It's the organizationally unique identifier for the manufacturer of the device.

question

What command issued from the command prompt will show the route that a packet travels from the issuing computer to another computer?

answer

b. tracert

question

What is the purpose of the default route?

answer

c. It's where the router sends all packets with destinations of which it has no knowledge.

question

A wireless access point is most like which other network device, in that all computers send signals through it to communicate with other computers?

answer

c. hub

question

When referring to network bandwidth, what is the basic unit of measurement?

answer

b. bits per second

question

Before a computer can transmit data on a wireless network in some cases, it must send What type of signal to the AP?

answer

a. RTS

question

The SSID is configured on which of the following so that it can be distinguished from other available wireless networks?

answer

b. access point

question

What command would you issue from the command prompt to test whether your computer has connectivity to the network?

answer

a. ping IPaddress

question

Which of the following are features of a router? (Choose all that apply)

answer

b. connects LANs to one another e. works with packets instead of frames

question

What type of indicator lights would you find on a hub?

answer

a. network activity b. link status e. collision

question

The "Locally Administered Address" can be used to override the burned-in __________ address.

answer

MAC

question

In a computer's IP address settings, the _____________ gateway is the address of the router to which a computer sends all packets that are intended for networks outside of its own.

answer

default

question

A __________ frame is a message that is intended to be processed by all devices on the LAN.

answer

broadcast

question

The network ____________ is a measurement of the amount of data that can pass through a network in a certain period of time.

answer

bandwidth

question

A switch operating in ___________ mode can send and receive data at the same time.

answer

full-duplex

question

A network's physical topology refers to the arrangement of the cabling and how the devices connect to each other.

answer

True

question

The physical bus topology is no longer used because it required extra cable to connect all the computers and required a central device.

answer

False

question

A point-to-point topology is typically used for WAN connections.

answer

True

question

A network's logical topology often depends on the central device's electronics.

answer

True

question

A collision can occur on a switch only if the switch is operating in full-duplex mode.

answer

False

question

In a physical bus topology, both ends of the medium must be terminated in order to prevent what?

answer

b. signal bounce

question

Which of the following is NOT an advantage of a physical star?

answer

d. provides redundancy and fault tolerance

question

Which of the following is the physical topology that is daisy-chained like a bus and in which the cabling is brought around from the last device to the first device?

answer

c. physical ring

question

What is the main advantage of a point-to-point topology?

answer

a. data travels on a dedicated link

question

What type of logical topology is at work when using an Ethernet hub?

answer

a. logical bus

question

What type of logical topology does a Wireless LAN use?

answer

a. logical bus

question

In a token ring network, what is the central device called?

answer

d. multistation access unit

question

What is the most common topology and technology combination in use today?

answer

d. switched / Ethernet

question

Which of the following is NOT a characteristic of Unshielded Twisted Pair cabling?

answer

c. operates in half-duplex only

question

What is the Ethernet frame type that is used by TCP/IP?

answer

c. Ethernet II

question

What does the frame trailer consist of in an Ethernet frame?

answer

d. cyclic redundancy check

question

What is the media access method used by Ethernet?

answer

a. CSMA/CD

question

What is the best way to eliminate the possibility of collisions in a network?

answer

d. Both a and c

question

When discussing Ethernet standards, what does the XBaseY terminology refer to?

answer

b. the transmission speed, the type of transmissions, and the length or type of cabling

question

When using UTP cabling, what is the maximum cable length that can be used from the NIC to a hub or switch?

answer

c. 100 meters

question

What is the IEEE standard governing wireless networking?

answer

d. 802.11

question

When a wireless computer uses a peer-to-peer connection to directly connect to another wireless computer, it is operating in what mode?

answer

b. ad hoc

question

In wireless networks, what type of media access control is used?

answer

c. CSMA/CA

question

What is the main disadvantage of cable modem networking?

answer

d. It uses a bus topology.

question

Which of the following is NOT a component of an Ethernet frame header?

answer

d. 4-byte frame check sequence

question

The way that data travels in a network is referred to as the network's ____________ topology.

answer

logical

question

In a large network, in which several switches need to be connected together, usually one device is placed at the center, forming a(n) ____________ star.

answer

extended

question

The most popular LAN technology used today is ____________.

answer

Ethernet

question

When a wireless computer connects with an AP before it connects with other devices, it is operating in ____________ mode.

answer

infrastructure

question

A ___________ topology is fully redundant and is the most expensive to implement.

answer

mesh

question

There are two basic categories of physical cabling used in Ethernet networks. They are copper wire and fiber optic.

answer

True

question

The length of cable between the wall jack and a patch panel is called vertical cabling.

answer

False

question

Wireless and wired networks are both susceptible to RFI.

answer

True

question

Because fiber-optic cabling uses light pulses instead of electrical signals, it is immune to interference and highly resistant to eavesdropping.

answer

True

question

Wireless networks are often used to extend the reach of a wired LAN.

answer

True

question

Which of the following is not one of the main differences between the types of network cabling?

answer

b. the ability to send and receive signals

question

Which of the following is not a form of electromagnetic interference, or EMI?

answer

a. rain/fog

question

When a signal travels across network medium, it signal loses strength the further it gets from the transmitting station, to the point where the receiving station can no longer interpret the signals correctly. What is the term for this phenomenon?

answer

c. attenuation

question

What are all of the connections in a network considered, including the cables and their connectors?

answer

d. cable plant

question

What is the maximum bandwidth for a network cabled using category 5e UTP cable?

answer

d. 1000 Mbps

question

What is the maximum cable length for both category 5e and category 6 UTP cable?

answer

c. 100 m

question

The frequency at which a wireless network operates is measured in cycles per second and is expressed as what unit of measurement?

answer

a. hertz

question

Terrestrial and satellite systems are two types of which wireless networking technology?

answer

d. microwave

question

What is the way in which bit signals are represented on the network medium?

answer

b. encoding

question

Which of the following is a length of cable that connects a computer to either a networking device or to an RJ-45 jack?

answer

d. patch cable

question

What is the term used that defines network cabling in the work area and between telecommunications closets and equipment rooms?

answer

b. structured cabling

question

The entrance facility is the place where the connection to a WAN is located. It is basically the point where the LAN begins and ends. What is another name for this point?

answer

c. demarcation point

question

Which of the following connections might require a crossover cable?

answer

c. switch to switch

question

In an MDI device, on which two pins does the device use to transmit?

answer

a. 1 and 2

question

What type of wiring should be used for a high-speed connection between two buildings?

answer

d. fiber-optic cabling

question

What is a disadvantage of using fiber-optic cabling?

answer

d. difficult to install

question

What type of wireless technology is used for 802.11b /g /n networks?

answer

a. spread-spectrum radio

question

Which of the following categories of UTP cabling are considered to be data grade as specified by ANSI/TIA/EIA? (Choose all that apply.)

answer

c. Category 4 d. Category 5 e. Category 6

question

Which of the following are components of a network that are defined by structured cabling?

answer

a. horizontal wiring c. entrance facility d. work area

question

A network that uses the air to transmit signals across the network is considered a(an) ____________ network.

answer

wireless

question

When copper wires are bundled together, they are susceptible to ____________, a form of interference where the signals leak out onto other wires.

answer

crosstalk

question

A type of wireless network that uses light beams to send signals between two devices and is highly susceptible to visible light sources is called ____________.

answer

infrared

question

A wireless ____________ using line-of-sight or broadcast transmissions can extend a wired network over a short distance that would normally require a dedicated communication line from a communications carrier.

answer

bridge

question

Most office buildings usually have a false ceiling with an area above that which is used to run conduit for heating and air conditioning units, called the ____________.

answer

plenum

question

IPX/SPX is considered the protocol suite of the Internet, and it is the most widely used protocol suite in LANs.

answer

False

question

The Internetwork layer is the layer that handles network configuration and is considered the heart of the TCP/IP protocol suite.

answer

True

question

The Transport layer uses port numbers to identify the source and destination Application-layer protocol of the data that it contains.

answer

True

question

DNS is a protocol that automatically provides a computer with its IP address configuration.

answer

False

question

An IP address is composed of 48 bits that are grouped together into 8-bit octets and are represented by a decimal number from 0 to 255.

answer

False

question

The Transport layer deals with which unit of information?

answer

d. segment

question

Which of the following is not a function of the Network Access layer?

answer

b. delivers packets efficiently

question

In what layer does the NIC operate?

answer

a. Network Access

question

In which layer does a router operate?

answer

b. Internetwork

question

Which protocol is responsible for determining the MAC address associated with each IP address and keeping a table of its results?

answer

c. ARP

question

TCP establishes a connection with the destination device using which process?

answer

d. three-way handshake

question

Which of the following is not an Application layer protocol?

answer

b. TCP

question

An IP address consists of four octets separated by periods. Which part of this address denotes its class?

answer

a. first octet

question

How many host addresses are available on a Class C network?

answer

a. 254

question

You are the network administrator for a company that uses a private addressing scheme for its internal network. You have 300 workstations that regularly access the Internet. What process must be in operation on your network to allow all the workstations to have access to the Internet using only one public IP address?

answer

d. PAT

question

What is the binary number system based on?

answer

a. powers of 2

question

Which part of a computer's IP address configuration indicates the portion of the address that specifies the network ID?

answer

b. subnet mask

question

What is the decimal equivalent to the binary number 11000001?

answer

d. 193

question

How many bits are in an IPv6 address?

answer

d. 128

question

The last 64 bits of an IPv6 address are the interface identifier. Where is that number derived from?

answer

d. the MAC address

question

What is the hexadecimal number F equal to in binary?

answer

d. 1111

question

What is the decimal equivalent to the hexadecimal number D?

answer

a. 13

question

How many bits are available in an IPv6 network for creating subnets when the prefix is /48 and the host ID is 64 bits?

answer

b. 16

question

Which of the following is a feature of TCP? (Choose all that apply.)

answer

a. segments data into chunks d. ensures flow control e. establishes a connection

question

Which of the following are solutions to the shortage of available IPv4 addresses? (Choose all that apply.)

answer

a. IPv6 b. private addressing c. subnetting e. NAT

question

An IP address is composed of two parts, one is the ____________ ID and one is the host ID.

answer

network

question

____________are sets of rules and procedures that dictate communication and behavior.

answer

Protocols

question

___________ is a way of breaking a large address space into more, smaller, address spaces.

answer

Subnetting

question

The four layers of the TCP/IP protocol suite are Application, ____________, Internetwork, and Network Access

answer

Transport

question

An address that can only be used on the internal network and cannot be used to access the Internet is called a ____________ address

answer

private

question

The Transport layer is the same in both the OSI model and the TCP/IP model.

answer

True

question

The Physical layer has been divided into two sublayers, called the LLC sublayer and the MAC sublayer.

answer

False

question

The Network layer communicates with the Data Link layer and the Session layer.

answer

False

question

The maximum transmission unit for Ethernet is 1518 bytes.

answer

True

question

One of the problems that can occur in the Network layer is the incorrect configuration of a hosts IP address.

answer

True

question

Which layer is responsible for establishing a connection between the source and destination?

answer

b. Session

question

Which layer of the OSI model is responsible for encryption and decryption?

answer

b. Presentation

question

Put the layers of the OSI model in order from layer 7 to layer 1.

answer

b. f., a., g., e., b., d., c.

question

What is a PDU?

answer

c. It is the name given to the unit of information used by each layer.

question

What information would you find in the header of a Transport layer PDU?

answer

d. window size

question

At each layer of the OSI model, data is appended to the original message and then sent on to the next lower layer. What is this process called?

answer

a. encapsulation

question

What does the Transport layer use to make sure that a message is reassembled correctly on the receiving device?

answer

d. sequence number

question

What is the IEEE standard that governs all forms of Ethernet media?

answer

b. 802.3

question

Which is the IEEE standard that sets the standards for wireless networking?

answer

d. 802.11

question

Which layer is responsible for determining the best path a packet should travel across an internetwork?

answer

a. Network

question

One job that a router performs is that of gatekeeper, which means that it can be configured to only allow certain packets access into the network based on a list of rules. What is that process called?

answer

c. access control

question

You are working at the help desk and you get a message that a user cannot access the Internet. You open a command prompt, ping the workstation's IP address, and get a response. You ask the user to try the Internet again. He does so with the same result— no connection. Which type of device is most likely to be the problem?

answer

c. Network layer device

question

Which layer has been subdivided into the Logical Link Control sublayer and the Media Access Control sublayer?

answer

b. Data Link

question

What layer is responsible for making sure that the data that it sends and receives is in a format that the receiving and sending computers can understand?

answer

b. 6

question

At what layer do NICs operate?

answer

b. Data Link

question

Which layer is responsible for the encoding of signals?

answer

b. 1

question

The Transport layer segments data into smaller chunks, the size of which is determined by which of the following?

answer

a. MTU

question

At which layer would you find errors that were caused by EMI?

answer

c. Physical

question

How can you find out what your MAC address is? (Choose all that apply.)

answer

a. Right-click on the Local Area Connection and choose status. c. Open a command prompt and type the command getmac. d. Open a command prompt and type the command ipconfig /all.

question

Which of the following are protocols that you find at the Application layer of the OSI model?

answer

b. FTP e. DHCP f. SNMP

question

The ____________ reference model is a general framework for networking systems that uses a layered approach to reduce its complexity.

answer

OSI

question

The ____________ layer is the bottom layer, whose job it is to convert bits into signals and vice versa.

answer

Physical

question

The process of stripping the header and trailer from a PDU is called ____________.

answer

deencapsulation

question

The PDU at the Data Link layer is called a ____________.

answer

frame

question

The ____________ layer of the TCP/IP model combines the top three layers of the OSI model into one layer.

answer

Application

question

Network switches always must be configured before they can be put into operation in a network.

answer

False

question

The major disadvantage to using store-and-forward switching in a large network is that it will slow down the speed of network traffic.

answer

True

question

Communications through a router are noticeably faster than communications through a switch.

answer

False

question

A distance-vector protocol sends updates to its neighbors that include the entire contents of its routing table.

answer

True

question

Changing the SSID on the access point and disabling SSID broadcast is sufficient security for most wireless networks.

answer

False

question

Which of the following is not a true statement regarding the function of a switch?

answer

a. It determines the path used based on the destination IP address.

question

Which of the following combinations will you find in a switching table?

answer

d. MAC address/switch port number

question

Which of the following is the fastest switching mode?

answer

a. cut-through

question

Besides a managed switch, what is a high-end switch that offers features such as multicast processing and port security called?

answer

c. smart

question

Which of the following is the switching protocol that is used to eliminate the possibility of switching loops?

answer

d. STP

question

Which of the following is not a function that would be found in a managed switch?

answer

b. the ability to transfer it's switching table with neighboring switches

question

Each interface on a router must have an IP address and what else to be able to communicate on the network?

answer

c. MAC address

question

When a router's interface is configured with multiple IP addresses with each address belonging to different networks, what is it called?

answer

d. router on a stick

question

What type of routing protocol are RIP and RIPv2?

answer

d. distance-vector protocol

question

The time it takes for all the routing tables on every router in a network to be fully updated, either when a change occurs or according to a schedule, is called the speed of what?

answer

b. convergence

question

When an access control list is applied on a router's interface, that interface is performing a specific function on the packets that it receives. What is that function called?

answer

a. packet filtering

question

What command issued from a command prompt will display the routing table in Windows?

answer

b. route print

question

A wireless router is actually composed of three devices, a wireless access point and which two other devices?

answer

c. a router and a switch

question

What type of hacker uses a scanning device to find unsecured wireless networks and break into those networks?

answer

b. wardriver

question

Which is the strongest form of wireless security?

answer

c. WPA2

question

Which is the PCI bus type that has the highest possible transfer rate?

answer

b. PCIe

question

Which advanced feature of a NIC allows a computer to download an OS from the network instead of from a local drive?

answer

d. preboot execution environment

question

On a router configured to use RIP, the number of routers a packet must travel between before it reaches its destination is called what? (Choose all that apply.)

answer

a. metric b. hop count

question

Which of the following would be found in a routing table on a router?

answer

a. timestamp b. destination network c. next hop e. metric

question

Access control lists can be configured based on which of the following? (Choose all that apply.)

answer

a. protocol c. destination network e. source IP address

question

When a switch receives a broadcast frame, it ____________ the frame out to all ports.

answer

floods

question

A switch that is configured to use the Spanning Tree Protocol will place a port in ____________ mode if sending traffic to it may cause a switching loop.

answer

blocking

question

A router's final task when handling a packet is to send the packet on to its next and possibly final destination; this is referred to as packet ____________.

answer

forwarding

question

One type of security for wireless networks involves entering a list of the MAC addresses for the devices that are allowed to access the network and excluding all others. This is called MAC ____________.

answer

filtering

question

A ____________ is used to make connections between the network interface card and the other vital components of the computer, such as the central processing unit.

answer

bus

question

When a disk is formatted, it is impossible to recover the data that was on the disk.

answer

False

question

In Windows, you can start the Task Manager by simply right-clicking the taskbar and choosing Start Task Manager.

answer

True

question

One critical difference between a client OS and a server OS is the addition of directory services on some server OSs

answer

True

question

Virtualization is designed for testing and development purposes only.

answer

False

question

Windows Server 2008 R2 can be installed only on a 64-bit system.

answer

True

question

Which part of the OS provides users and applications with an interface to manipulate files?

answer

d. file system

question

What are the chunks called into which the available storage space on a disk drive is broken?

answer

b. sectors

question

Older OSs first used what type of multitasking, which allowed a process to monopolize the CPU's time until the process had completed its own task?

answer

b. cooperative

question

What method does the CPU use to divide its computing cycles between more than one process?

answer

c. time slicing

question

In Windows, you use Task Manager to view the processes running on your computer. What do you use to view the running processes on some Linux systems?

answer

d. system monitor

question

What is the native file-sharing protocol in Linux?

answer

b. NFS

question

Which common e-mail protocol allows the user to access messages, yet still have them stored on the server?

answer

b. IMAP

question

Which of the following is not a function typically provided by the centralized management of a server-based network?

answer

d. protocol analysis

question

What is the process called that grants or denies a user's access to network resources?

answer

c. authorization

question

What directory service protocol used in Linux systems is also supported by Windows?

answer

c. LDAP

question

What storage solution involves a third-party company that provides off-site hosting of data?

answer

b. cloud-based storage

question

What is a partial copy of a VM that is used to restore it to a previous state?

answer

a. snapshot

question

Which of the following virtualization products provides hosted virtualization?

answer

d. VMware Workstation

question

You are testing out a new DHCP server and want to make sure that it does not interfere with your current network. What option would you use to configure your network adapter using VMware workstation?

answer

c. host-only

question

Which edition of Windows Server 2008 includes support for up to 64 processors and provides unlimited virtual instances?

answer

d. Datacenter Edition

question

Which of the following types of file systems support file and folder permissions? (Choose all that apply.)

answer

a. EXT2 d. NTFS

question

A DHCP server can supply the client with more than just its IP address and subnet mask. What other necessary configurations can it supply? (Choose all that apply.)

answer

a. default gateway d. DNS server

question

What are the two most common ways of accessing a network resource? (Choose two.)

answer

b. mapping a drive d. entering a UNC path

question

Which of the following is a fault tolerant feature provided by a server OS? (Choose all that apply.)

answer

a. RAID d. server cluster e. hot-swappable devices

question

Which of the following virtualization products are used for bare-metal virtualization?

answer

b. Citrix XenServer d. VMware vSphere f. Microsoft Hyper-V

question

A ____________ is a program that runs in the background and provides support for other processes.

answer

service

question

In ___________ multitasking, either the user or the OS can terminate a process that is monopolizing the CPU's time.

answer

pre-emptive

question

A ____________ file is simply a text file that contains a list of commands that you would normally enter in a command prompt.

answer

batch

question

When a user enters his username and password to log on to a machine, he is invoking the process of ____________.

answer

authentication

question

A device that has no directly attached user interfaces and comes with specialized software designed to perform a specific task is called a network ____________.

answer

appliance

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