Question 1

VPNs offer high security because they operate through the Internet.

Accepted Answer

A) True 
 B)False

Question 2

MPLS operate at layer 4.

Accepted Answer

A) True 
 B)False

Question 3

A _______________ is a particular type of network that uses circuits that run over the Internet but that appears to the user to be a private network.

Accepted Answer

A)  local carrier network
B)  virtual private network
C)  integrated service digital network
D)  software defined network
E)  SONET networkF) A) and B)
G) B) and E)

Question 4

______________ are sometimes called private line services.

Accepted Answer

A)  WANs
B)  LANs
C)  Circuit-switched networks
D)  Dedicated-circuit networks
E)  Routed-backbone networksF) A) and E)
G) A) and D)

Question 5

Mesh networks:

Accepted Answer

A)  usually provide relatively long routes through the network compared to ring networks) 
B)  require more processing by each computer in the network than in star or ring networks
C)  do not use decentralized routing
D)  do not have much capacity wasted by network status information
E)  do not have many possible routes through the network to prevent one circuit from becoming overloadedF) B) and D)
G) All of the above

Question 6

A WAN with a ring topology can use full or half duplex circuits

Accepted Answer

A) True 
 B)False

Question 7

Packet switched networks enable packets from separate messages or separate organizations to be interleaved for transmission.

Accepted Answer

A) True 
 B)False

Question 8

Full mesh networks are inexpensive.

Accepted Answer

A) True 
 B)False

Question 9

Most IP services use _______ as the data link layer protocol.

Accepted Answer

A)  Ethernet
B)  TCP
C)  MPLS
D)  IRoute
E)  T1F) B) and E)
G) A) and C)

Question 10

Which of the following type of networks permit packets from separate messages to be interleaved?

Accepted Answer

A)  circuit switched network
B)  dedicated circuit network
C)  dial up circuit network
D)  packet switched network
E)  Fractional T-1 networkF) C) and E)
G) B) and C)

Question 11

What are the main benefits of using a VPN?

Accepted Answer

The main benefits of using a VPN (Virtua...

Question 12

A ________ geometric layout connects all computers in a closed loop, with each computer linked to the next usually with a series of point-to-point dedicated circuits.

Accepted Answer

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

Question 13

Describe the three types of VPN.

Accepted Answer

The three types of VPN are remote access...

Question 14

A T1 circuit provides a data rate of 1.544Mbps.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is not a benefit of packet switched services?

Accepted Answer

A)  The data transmission rates tend to be lower than dial-up or dedicated circuits.
B)  You don't have to set up dedicated circuits between each end point from and to which you wish to transmit data and/or voice.
C)  You have the flexibility to send data through a temporary circuit between two connections that will be disconnected as soon as the digital transmission is completed.
D)  All circuits are less susceptible to a great deal of noise because they are digital.
E)  You don't have to specify all the interconnecting services you need for your WAN when you buy the service.F) A) and B)
G) B) and D)

Question 16

`
T carrier circuits can only be used to transmit voice.

Accepted Answer

A) True 
 B)False

Question 17

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) B) and C)
G) None of the above

Question 18

SONET:

Accepted Answer

A)  is a standard for optical transmission that currently operates at Terabit per second speeds
B)  is very similar to the ITU-T standard, synchronous digital hierarchy
C)  uses inverse multiplexing above the OC-1 level
D)  refers to Sprint Overall Network
E)  is not currently available, even in large citiesF) A) and E)
G) A) and C)

Question 19

Primary 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 128Kbps
E)  is comprised of analog circuits onlyF) A) and B)
G) A) and C)

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 9: Wide Area Networks

Which of the following is not a benefit of packet switched services?

Correct AnswerverifiedShow Answer

Most IP services use _______ as the data link layer protocol.

Correct AnswerverifiedShow Answer

VPNs offer high security because they operate through the Internet.

Correct AnswerverifiedShow Answer

A WAN with a ring topology can use full or half duplex circuits

Correct AnswerverifiedShow Answer

A T1 circuit provides a data rate of 1.544Mbps.

Correct AnswerverifiedShow Answer

Packet switched networks enable packets from separate messages or separate organizations to be interleaved for transmission.

Correct AnswerverifiedShow Answer

MPLS operate at layer 4.

Correct AnswerverifiedShow Answer

Primary rate interface:

Correct AnswerverifiedShow Answer

Describe the three types of VPN.

Correct AnswerAnswered by ExamLex AIThe three types of VPN are remote access...View AnswerShow Answer

A _______________ is a particular type of network that uses circuits that run over the Internet but that appears to the user to be a private network.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Mesh networks:

Correct AnswerverifiedShow Answer

What are the main benefits of using a VPN?

Correct AnswerAnswered by ExamLex AIThe main benefits of using a VPN (Virtua...View AnswerShow Answer

A ________ geometric layout connects all computers in a closed loop, with each computer linked to the next usually with a series of point-to-point dedicated circuits.

Correct AnswerverifiedShow Answer

Full mesh networks are inexpensive.

Correct AnswerverifiedShow Answer

SONET:

Correct AnswerverifiedShow Answer

In a ring design WAN,

Correct AnswerverifiedShow Answer

Which of the following type of networks permit packets from separate messages to be interleaved?

Correct AnswerverifiedShow Answer

______________ are sometimes called private line services.

Correct AnswerverifiedShow Answer

` T carrier circuits can only be used to transmit voice.

Correct AnswerverifiedShow Answer

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Answered by ExamLex AI
The three types of VPN are remote access...
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Correct Answer
Answered by ExamLex AI
The main benefits of using a VPN (Virtua...
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