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


A) source MAC address
B) destination MAC address
C) frame payload
D) cyclic redundancy check

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


A) 6-byte destination MAC address field
B) 6-byte source MAC address field
C) 2-byte type field
D) 4-byte frame check sequence

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

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

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

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What type of logical topology does a Wireless LAN use?


A) logical bus
B) logical star
C) switched topology
D) hierarchical topology

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A

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


A) easier network upgrades
B) centralized monitoring and management of traffic
C) use of faster technologies
D) provides redundancy and fault tolerance

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D

What is the media access method used by Ethernet?


A) CSMA/CD
B) CSMA/CARP
C) CSMA/CA
D) CDMA

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


A) Only use switches.
B) Use higher speed hubs.
C) Use NICs that operate in full-duplex mode.
D) Both a and c

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


A) data travels on a dedicated link
B) provides redundancy and fault tolerance
C) relatively inexpensive
D) a reliable and fast backbone

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What is the IEEE standard governing wireless networking?


A) 802.3
B) 802.5
C) 802.3ab
D) 802.11

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


A) 1 meters
B) 10 meters
C) 100 meters
D) 1000 meters

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C

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.

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

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


A) contains four pairs of copper wire
B) susceptible to electrical interference
C) operates in half-duplex only
D) comes in numbered categories

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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?


A) physical bus
B) physical star
C) physical ring
D) point-to-point

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

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The most popular LAN technology used today is ____________.

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What are the four wireless standards, and how are they different?

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the four standards for wireless communic...

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What media access method does Wi-Fi use, and how is it different from Ethernet's?

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A station that is trying to transmit on ...

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