Question 1

Which of the following is not a way to reduce network demand?

Accepted Answer

A)   shifting network usage from high cost times to lower cost times
B)   using data compression techniques for all data in the network
C)   requiring a network impact statement for all application software developed by the organization
D)   moving data further from the applications and people who use them
E)   shifting network usage from peak to lower demand timesF) A) and E)
G) A) and D)

Question 2

Suppose you joined a company that had a WAN composed of SONET,T carrier services,ATM,and frame relay,each selected to match a specific network need for a certain set of circuits.Would you say this was a well-designed network?Explain.

Accepted Answer

It is difficult to determine whether thi...

Question 3

An intranet VPN connects different organizations over the Internet.

Accepted Answer

A) True 
 B)False

Question 4

Ethernet/IP packet networks are not provided by common carriers such as AT&T.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is not a basic architecture for dedicated circuit networks?

Accepted Answer

A)   ring
B)   partial mesh
C)   bus
D)   star
E)   full meshF) A) and B)
G) A) and C)

Question 6

Which of the following is a primary advantage of a VPN?

Accepted Answer

A)   low cost
B)   inflexibility
C)   unpredictable traffic congestion
D)   security
E)   complexity to the userF) B) and C)
G) A) and C)

Question 7

Broadband ISDN (B-ISDN)uses X.25 to move packets through the network.

Accepted Answer

A) True 
 B)False

Question 8

An ISDN BRI circuit provides more bandwidth than an ISDN PRI circuit.

Accepted Answer

A) True 
 B)False

Question 9

About ______% of the US population today uses dial-up services.

Accepted Answer

A)   1
B)   3
C)   5
D)   10
E)   15F) D) and E)
G) B) and C)

Question 10

In a ring design WAN,

Accepted Answer

A)   failure in one circuit means that the network can most likely continue to function
B)   failure in one circuit always means that the network will cease to function
C)   failure in one computer always means that the network will cease to function
D)   failure in one circuit means that there will not be any increased traffic delays in the network
E)   failure in one computer always means that messages will stop at that computer since it would be impossible to re-route trafficF) C) and E)
G) A) and E)

Question 11

An OC-1 circuit provides a data rate of 155 Mbps.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is not a key issue to be considered when selecting a WAN service?

Accepted Answer

A)   prestige value of using a particular common carrier
B)   flexibility
C)   capacity
D)   control
E)   reliabilityF) C) and D)
G) A) and B)

Question 13

A ____________ identifies each device connected to an ISDN network terminator.

Accepted Answer

A)   NIC
B)   MAC address
C)   SPID
D)   PRI
E)   BRIF) C) and E)
G) B) and C)

Question 14

A star architecture:

Accepted Answer

A)   connects all computers in a closed loop
B)   connects all computers off a backbone circuit
C)   connects all computers to one central computer that routes messages to the appropriate computer
D)   all of the above
E)   none of the aboveF) D) and E)
G) A) and B)

Question 15

In North America,a T1 circuit has ______ 64Kbps channels.

Accepted Answer

A)   2
B)   30
C)   24
D)   12
E)   36F) C) and D)
G) A) and E)

Question 16

In building Wide Area Networks,many organizations do not build their own long distance communication circuits

Accepted Answer

A) True 
 B)False

Question 17

Why would someone today still use POTS?

Accepted Answer

POTS, which stands for Plain Old Telepho...

Question 18

Basic rate interface:

Accepted Answer

A)   is typically offered only to commercial customers
B)   provides a communications circuit with two 64 Kbps B channels, plus one D channel
C)   is defined exactly the same way in Europe
D)   has an upper capacity of 1.544 Mbps
E)   is comprised of analog circuits onlyF) B) and E)
G) A) and B)

Question 19

A _____________ is a user's connection into a packet switched service.

Accepted Answer

A)   packet analog/digital device
B)   packet asynchronous/discrete device
C)   packet asymmetric/data transmission device
D)   packet assembly/disassembly device
E)   packet analyzer/decoder deviceF) All of the above
G) B) and D)

Question 20

The data rate for a T-1 circuit in North America is:

Accepted Answer

A)   1.544 Mbps
B)   6.312 Mbps
C)   44.376 Mbps
D)   274.176 Mbps
E)   1.544 GbpsF) C) and D)
G) B) and D)

Exam 8: Wide Area Networks

About ______% of the US population today uses dial-up services.

Correct AnswerverifiedShow Answer

Basic rate interface:

Correct AnswerverifiedShow Answer

A ____________ identifies each device connected to an ISDN network terminator.

Correct AnswerverifiedShow Answer

Which of the following is not a way to reduce network demand?

Correct AnswerverifiedShow Answer

Ethernet/IP packet networks are not provided by common carriers such as AT&T.

Correct AnswerverifiedShow Answer

Suppose you joined a company that had a WAN composed of SONET,T carrier services,ATM,and frame relay,each selected to match a specific network need for a certain set of circuits.Would you say this was a well-designed network?Explain.

Correct AnswerAnswered by ExamLex AIIt is difficult to determine whether thi...View AnswerShow Answer

Which of the following is not a basic architecture for dedicated circuit networks?

Correct AnswerverifiedShow Answer

Which of the following is not a key issue to be considered when selecting a WAN service?

Correct AnswerverifiedShow Answer

A _____________ is a user's connection into a packet switched service.

Correct AnswerverifiedShow Answer

An ISDN BRI circuit provides more bandwidth than an ISDN PRI circuit.

Correct AnswerverifiedShow Answer

An intranet VPN connects different organizations over the Internet.

Correct AnswerverifiedShow Answer

In North America,a T1 circuit has ______ 64Kbps channels.

Correct AnswerverifiedShow Answer

Broadband ISDN (B-ISDN)uses X.25 to move packets through the network.

Correct AnswerverifiedShow Answer

Why would someone today still use POTS?

Correct AnswerAnswered by ExamLex AIPOTS, which stands for Plain Old Telepho...View AnswerShow Answer

Which of the following is a primary advantage of a VPN?

Correct AnswerverifiedShow Answer

In a ring design WAN,

Correct AnswerverifiedShow Answer

A star architecture:

Correct AnswerverifiedShow Answer

An OC-1 circuit provides a data rate of 155 Mbps.

Correct AnswerverifiedShow Answer

The data rate for a T-1 circuit in North America is:

Correct AnswerverifiedShow Answer

In building Wide Area Networks,many organizations do not build their own long distance communication circuits

Correct AnswerverifiedShow Answer

Correct Answer
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Answered by ExamLex AI
It is difficult to determine whether thi...
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Correct Answer
Answered by ExamLex AI
POTS, which stands for Plain Old Telepho...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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