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46 Cards in this Set
- Front
- Back
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Which term describes the conversion of binary data into a form that can travel on a physical communications link?
A. encoding B. decoding C. Encrypting D. decrypting |
A. encoding
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All of the following are common file formats EXCEPT.
B. ASPCA |
B. ASPCA
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Convert the decimal number 127 to hex
7F |
7F
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Currently, how large are IP address?
D. 32 bit |
D. 32 bit
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From the following list what is the correct order of encapsulations? 1. segment, 2. bits, 3. packets, 4. frames
A. 1-3-4-2 |
A. 1-3-4-2
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How is the number 225 represented in binary?
11100001 |
11100001
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How many bits are in the network and subnet portion of a class B network with a subnet of 255.255.255.240?
C. 20 |
C. 20
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How many pins are on each of the ports of a patch panel?
B. 8 |
B. 8
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If ACME Inc. occupies three floors of a building and each floor is 1500 square meters, how many wiring closets should be installed according to EIA/TIA 569?
C. six |
C. six
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In an Ethernet LAN, where does the horizontal cabling run normally terminate?
A patch panel |
A patch panel
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What can be created from borrowing bits from the host portion of an IP address?
Subnetworks |
Subnetworks
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What best describes the difference between AC and DC?
D. DC flows at a constant value, AC rises and falls. |
D. DC flows at a constant value, AC rises and falls.
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What do switches use to make switching decisions?
MAC addresses |
MAC addresses
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What is a difference between the OSI and TCP/IP models?
B. The OSI model has 7 layers and the TCP/IP model has 4 layers |
B. The OSI model has 7 layers and the TCP/IP model has 4 layers
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What is a type of dialogue control that the session layer may use?
2 Way Alt |
Two-way alternate communication
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What is an example of an application that requires both a client and server in order to function?
A. web browser |
A. web browser
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What is exchanged to provide communication between hosts' source and destination OSI peer layers?
D. Protocol data units |
D. Protocol data units
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What is the Organizational Unique Identifier (OUI)?
B. the first six digits of a MAC address |
B. the first six digits of a MAC address
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What is the decimal value of hex number ABE?
2750 |
2750
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What is the decimal value of the binary IP address
11001101.11111111.10101010.11001101 205.255.170.205 |
205.255.170.205
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What is the maximum number of bits that can be borrowed from the host portion of a Class C network to create subnets?
C. 6 |
C. 6
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What is the purpose of a safety ground in a computer?
D. prevents metal parts from becoming energized with a hazardous voltage |
D. prevents metal parts from becoming energized with a hazardous voltage
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When running a cable from the wiring closet to wall jacks, where is the cable itself labled?
B. at each end |
B. at each end
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When sending data to a host on a different network, which address does the source host encapsulate in the IP header?
B. MAC address of the router |
B. MAC address of the router
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Which Ethernet wiring standard uses twisted pair wiring?
10Base-T |
10Base-T
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Which address does a router use to identify the source or destination network of a packet?
Network Address |
Network Address
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Which device is characterized as both a Layer 1 and Layer 2 device?
B. Network interface card |
B. Network interface card
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Which factor reduces throughput?
A. increased number of users |
A. increased number of users
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Which item is characteristic of a collision domain?
A. all computers on a single shared access media |
A. all computers on a single shared access media
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Which layer establishes, manages, and terminates sessions between applications?
C. Session |
C. Session
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Which layer is responsible for organizing bits using frames and name it.
B. Layer 2 |
B. Layer 2 Data Link
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Which layer of the OSI model can provide a connection-oriented reliable data transfer between two hosts?
D. Transport |
D. Transport
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Which of the following are measures of speed and capacity for a network?
C. throughput and bandwidth |
C. throughput and bandwidth
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Which of the following are routed protocols?
B. IP, AppleTalk, IPX |
B. IP, AppleTalk, IPX
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Which of the following best describes network protocol?
A. a formal description of a set of rules and conventions that govern how devices on a network exchange information |
A. a formal description of a set of rules and conventions that govern how devices on a network exchange information
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Which of the following cable types combine shielding, cancellation, and twisting of wires?
B. STP |
B. STP
Shielded twisted pair |
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Which of the following is the approximate number of hosts supported in a Class B unsubnetted network?
C. 65,000 |
C. 65,000
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Which protocol can find the MAC address of a computer given its IP address?
C. ARP |
C. ARP
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Which protocol is designed to download or upload files on the internet?
C. FTP |
C. FTP
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Which statement best describes wireless signals?
D. they are electromagnetic waves that don't need a physical medium |
D. they are electromagnetic waves that don't need a physical medium
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Which statement describes bridges and the way they make forwarding decisions?
C. they operate at OSI Layer 2 and use MAC addresses to make decisions |
C. they operate at OSI Layer 2 and use MAC addresses to make decisions
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Which statement is true about routers?
D. they based forwarding decisions on Layer 3 protocal addresses |
D. they based forwarding decisions on Layer 3 protocal addresses
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Which term regers to the amount of data that can be transmitted before receiving an acknowledgement?
A. window size |
A. window size
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Which type of protocol is used for communication between routers to maintain tables?
D. routing |
D. routing
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Why is a static route the preferred method for reaching stub networks?
A. it requires less overhead |
A. it requires less overhead
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Which item correctly describes a source address?
B. the address of a host that sends data and information to other computers in a network |
B. the address of a host that sends data and information to other computers in a network
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