TestOut PC Pro Ch.6 POST Test – Flashcards
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Which of the following is the best definition for a LAN?
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A network in a small geographic area, like in an office.
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Which of the following terms refers to a network resource sharing model that uses access control lists saved on each computer?
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-Workgroup -Peer-to-peer
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Which of the following is a rating of the amount of data that can be sent over a network in a period of time?
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Bandwidth
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Which of the following terms describes a group of computers and users that utilize centralized resources, administration, and security settings?
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-Directory -Domain
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Which of the following are advantages of using a domain to manage a network?
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-Scalability -Centralized administration
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You have a network that uses a local ring topology. How do messages travel through the network?
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Messages travel from one device to the next until they reach the destination device.
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You have a network that uses a logical bus topology. How do messages travel through the network?
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Messages are broadcast to all devices connected to the network
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Which of the following topologies connects each network device to a central hub?
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Star
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You have implemented an ad-hoc wireless network that doesnt employ a wireless access point. Every wireless network card can communicate directly with any other wireless network card on the network. What type of physical network topology has been implemented in this type of network?
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Mesh
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1.A network in a small geographic area that typically uses wires to connect systems together. 2.A small network used for connecting devices, such as a notebook computer, a wireless headset, a wireless printer, and a smartphone. 3.A network that is typically owned and managed by a city as a public utility 4.A gorup of networks that are geographic ally isolated, but are connected to form a large internetwork 5.Similar to a standard LAN, but uses radio signals instead of wires to connect systems together. 6.A network that covers an area as small as a few city blocks to as large as an entire city. 7.A set of subnets connected to each other, typically by wires, using at least one router.
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1.LAN 2.PAN. 3.MAN 4.WAN 5.WLAN 6. MAN 7.LAN
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What device is used to create a physical star topology?
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Switch
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Which network component connects a device to the transmission media and allows it to send and receive messages?
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Network interface card
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Which of the following statements accurately describes how a modem works?
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-It modulates digital data from the PC into analog data and transmits it on a telephone network -It demodulates analog data from a telephone network into digital PC data.
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Which of the following is a valid MAC address?
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C0-34-FF-15-01-8E
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A host wants to send a message to another host with the IP address 115.99.80.157. IP does not know that hardware address of the destination device. Which protocol can be used to discover the MAC address?
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ARP
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Which of the following LAN devices receives a signal on one port, and forwards that signal only to the port where the destination device is connected?
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Switch
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Which of the following describes how a switch functions?
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It connects multiple cable segments(or devices), and forwards frames to all of it appropriate segments
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Which of the following hardware devices regenerates a signal out all connected ports without examining the frame or packet ccontets?
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Hub```
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How do switches and bridges learn where device are located on a network?
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When a frame enter a port, the source MAC address is copied from the frame header.
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An 8-port switch receives a frame on port number 1. The frame is addressed to an unknown device. What will the switch do?
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Send the frame out poer 2-8
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You have a computer with an onboard LAN adapter. The LAN adapter has failed and you are unable to connect the computer to the network. What should you do?
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Add a network car using a PCI slot
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What type of cable configuration is shown here and what is it used for?
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Crossover cable configuration. Used to connect computers directly to one another for networking.
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Match the fiber optic cable types on the left with the appropriate characteristics on the right. Each cable type may be used once, more than once, or not at all.
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DATA TRANSFERS THROUGH THE CORE USING MORE THAN ONE LIGHT RAYS Multimode THE CORE DIAMETER IS AROUND 10 MICRONS Single mode CABLE LENGTHS CAN EXTEND A GREAT DISTANCE Single mode CABLE LENGTHS ARE LIMITED IN DISTANCE Multimode AT DISTANCE UP TO 3 KM, DELIVERS DATA RATES UP TO 10 Gbps Single Mode AT DISTANCE OF UNDER 2km, DELIVERS DATA RATES UP TO 1 Gbps Multimode
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Which kind of connector do you use to connect a modem to a standard telephone line?
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RJ-11
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Which of the following situations is more likely to justify the investment in Category 6a cable instead Category 6?
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The work area has a lot of electromagnetic interference.
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Which connector is used with UTP (unshielded twisted pair) cable?
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RJ-45
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What type of cabling can be used for an Ethernet 100Base-T(100Mbps) network?
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-Category 5e UTP -Category 5 UTP
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Which of the following are advantages of using fiber optic cabling for a network, as opposed to other types of cabling?
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-Greater cable distances without a repeater -immunity to electromagnetic interference
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What is a major benefit of STP over UTP?
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Greater resistance to interference.
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You are installing networking cable in the air space between the ceiling and the roof of a building. Which type of cabling should you use?
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Plenum
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Which of the following are characteristics of coaxial network cable?
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-It has a conductor made from copper in the center of the cable -it uses two concentric metallic conductors
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You have just signed up for a broadband home Internet service that uses coaxial cable. Which connector type will you most likely use?
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F-type
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Which network type uses light pulses to transmit data?
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Fiber optic
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You are using a crimper to attach an RJ-45 connector to a Cat 6 UTP cable. You need to use the T568A standard to connect the individual wires to the connector. Which wire should be connected to pin 1.
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Green with white
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Your network follows the 1000Base-T specifications for Gigabit Ethernet. What is the maximum cable segment length allowed?
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100 meters
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Which of the following is true of a network using the 1000Base-T standard?
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-The network operates at one gigabit per second. -The network uses copper UTP cables
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A medical center wants to upgrade their network backbone to 10 Gigabit Ethernet (10Gbps) so they can perform daily backups of large amounts of data to the secure on-site storage area network (SAN) without bogging down the network. Some of the backbone segments will have to reach between buildings that are close to 300 meters apart. Which of the following cable types types will support 10 Gigabit Ethernet at the necessary segments lengths while keeping costs at low as possible?
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Multimode fiber optic
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Which type of fiber optic cable supports 10 Gigabit Ethernet with a maximum segment length of up to 40km?
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10GBaseER single-mode
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Match the types of Ethernet connectivity devices on the left with the corresponding descriptions on the right. Each type of Ethernet connectivity device may be used once, more than once, or not at all.
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-Connects segments on the same subnet. Forwards signals to only port connected to the destination device Switch -Can be used to connect wireless clients to wired clients on the same network Bridge -Connects two network segments that have different subnet addresses Router -Connects segments on the same subnet. Repeat signals out to all other ports. Hub -Operate in full duplex mode, meaning devices can both send and receive data at the same time Switch -Operates in half-duplex mode, meaning devices can either send or receive date at any given time Hub -Uses the IP address within a packet to move packets between networks Router
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Which of the following device allows network communications to be transmitted over existing AC power lines?
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Ethernet over Power
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Which of the following is a wired networking method most commonly used by todays desktop PC's and other network devices to connect to a local area network?
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Ethernet
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Which of the following devices can be used to distribute electrical power along with network data on twisted-pair Ethernet cabling (CAT5 or higher)?
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Power over Ethernet
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Which of the following is a valid IP address?
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-2.2.2.2 -172.16.1.26
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Which of the following IP adresses are Class C addresses?
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-223.16.5.0 -192.15.5.55 -222.55.0.0
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Which of the following IP addresses belong to the Class A network 114.0.0.0?
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-114.58.12.0 -114.122.66.12 -114.0.0.15
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Which of the following IP addresses have a default subnet mask of 255.255.0.0
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-129.0.0.1 -168.16.5.1 -191.168.2.15
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Which of the following IP address ranges is reserved for Automatic Private IP Addressing?
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169.354.0.1-169.254.255.254
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The Wrk2 computer has been assigned the IP address of 192.168.1.55. Which of the following is considered the loopback address for the Wrk2 computer?
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127.0.0.1
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Which network protocol must be installed on your workstation to do this?
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IP
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Which protocols are used on the Internet to transmit Web pages from Web servers to Web browsers running on client workstations?
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-HTTP -HTTPS
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Which IP protocol should you implement to provide this capability?
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FTP
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What protocol is used to send e-mail messages from a mail client to a mail server?
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SMTP
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You want to implement name resolution on the linux workstations in your company. Which protocol will you use to do this?
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DNS
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Which IP protocol is used by Web browsers and Web servers to exchange files?
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HTTP
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Which of the following protocols do e-mail clients use to download messages from a remote e-mail server?
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POP3
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You've just installed the DNS service on a Window server. Which port must be opened in the server's firewall to allow clients to access the service?
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53
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Match the port numbers on the left with the protocols associated with them on the right?
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-Secure Shell 22 -Apple Filing Protocol (AFP) 548 -HTTP over SSL (HTTPS) 443 -Hypertext Transfer Protocol (HTTP) 80 -Server Message Block (SMB/CIFS) directly over TCP 445 -Service Location Protocol (SLP) 427 -Internet Message Access Protocol 143
