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Nt1210 Chapter 6

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Nt1210 Chapter 6
Chapter 6 Switched Wired Networks 1) Baseband transmission dominates in LANs because it is ________ than broadband transmission. A) faster
B) less expensive
C) Both A and B
D) Neither A nor B
Answer: B
2) Using link aggregation with two or three trunk lines ________ going to a single faster
Ethernet port.
A) is less expensive than
B) is just as fast as
C) Both A and B
D) Neither A nor B
Answer: A
3) The 802.3 100BASE­TX standard is defined at the ________ layer.
A) physical
B) data link
C) Both A and B
D) Neither A nor B
Answer: A
4) LANs that span distances of several kilometers by using multimode fiber are made possible by ________.
A) multimode optical fiber
B) high modal dispersion
C) high modal bandwidth
…show more content…
A) Tag Protocol ID
B) Tag Control Information
C) Logical Link Control Subheader
D) Broadcast
Answer: B
17) The ________ standard was created to prevent attackers from walking in and simply plugging a computer into a wall jack and therefore accessing the network.
A) STP
B) 802.1AE
C) POE
D) 802.1X
E) None of the above.
Answer: D
18) Which of the following is a main purpose of WANs?
A) To provide remote access to individuals.
B) To provide site­to­site networking.
C) To provide access to the Internet.
D) All of the above.
Answer: D
19) Because of greater transmission distances, WAN transmission speeds are ________ LAN transmission speeds.
A) faster than
B) about the same as
C) slower than
Answer: C
20) A leased line runs at a speed of 256 kbps. This probably is a ________ line.
A) 64x4 kbps bonded

B) T1
C) T3
D) fractional T1
E) fractional T3
Answer: D
21) DSL lines use ________ access lines.
A) one­pair voice­grade UTP
B) one­pair data­grade UTP
C) two­pair voice­grade UTP
D) two­pair data­grade UTP
E) four­pair UTP
Answer: A
22) A firm uses a PSDN. It has four sites. How many leased lines will it need?
A)

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