Question 1

A dedicated circuit is usually not available late at nights or on weekends.

Accepted Answer

A) True 
 B)False

Question 2

______________ are sometimes called private line services.

Accepted Answer

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

Question 3

Full mesh networks are inexpensive.

Accepted Answer

A) True 
 B)False

Question 4

Each state or Canadian province has its own ___________ to regulate communications within its borders.

Accepted Answer

A)  CRTC 
B)  Federal Communications Commission 
C)  common carriers 
D)  public utilities commission 
E)  PTT

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

With a virtual private network,users create permanent virtual circuits through the Internet called:

Accepted Answer

A)  bursts 
B)  cells 
C)  tunnels 
D)  rings 
E)  clouds

Question 7

Compare and contrast frame relay,ATM,MPLS and Ethernet service networks.

Accepted Answer

The answer of Compare and contrast frame relay,ATM,MPLS and Ethernet...

Question 8

A _________ is a connection-oriented approach to sending packets on a packet switched service.

Accepted Answer

A)  permanent virtual circuit 
B)  datagram 
C)  histogram 
D)  bursty packet 
E)  fractional T-1 network

Question 9

________ is a type of WAN connection that uses the normal voice telephone network.

Accepted Answer

A)  ATM 
B)  Dial-up service 
C)  T-Carrier services 
D)  Digital Subscriber Line 
E)  X.25

Question 10

SONET is made up of very high speed dedicated circuits that incorporate inverse multiplexing (IMUX)for all levels above the OC-1 level.

Accepted Answer

A) True 
 B)False

Question 11

Today,a common carrier that provides long distance services is typically called a local exchange carrier.

Accepted Answer

A) True 
 B)False

Question 12

A star topology is:

Accepted Answer

A)  difficult to manage because the central computer receives and routes all messages in the network 
B)  dependent upon the capacity of the central computer for its performance 
C)  always slower than a ring network 
D)  less susceptible to traffic problems than other architectures 
E)  not affected if the central computer fails

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

Describe the three types of VPN.

Accepted Answer

The answer of Describe the three types of VPN....

Question 15

A _______ is a connectionless method of sending data packets on a packet switched service.

Accepted Answer

A)  bursty packet 
B)  virtual circuit 
C)  datagram 
D)  histogram 
E)  permanent virtual circuit

Question 16

Frame relay is a reliable packet service.

Accepted Answer

A) True 
 B)False

Question 17

The data rate for a T-3 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 Gbps

Question 18

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 network

Question 19

____________ are companies that build a data and telecommunications infrastructure from which other companies can lease services for WANs and MANs.

Accepted Answer

A)  Common carriers 
B)  Router manufacturers 
C)  Standards organizations 
D)  CSUs 
E)  PUCs

Question 20

Another way to refer to dialed services is by the term,plain vanilla telephone service (PVTS).

Accepted Answer

A) True 
 B)False

Exam 8: Wide Area Networks

A dedicated circuit is usually not available late at nights or on weekends.

______________ are sometimes called private line services.

Full mesh networks are inexpensive.

Each state or Canadian province has its own ___________ to regulate communications within its borders.

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

With a virtual private network,users create permanent virtual circuits through the Internet called:

Compare and contrast frame relay,ATM,MPLS and Ethernet service networks.

A _________ is a connection-oriented approach to sending packets on a packet switched service.

________ is a type of WAN connection that uses the normal voice telephone network.

SONET is made up of very high speed dedicated circuits that incorporate inverse multiplexing (IMUX)for all levels above the OC-1 level.

Today,a common carrier that provides long distance services is typically called a local exchange carrier.

A star topology is:

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

Describe the three types of VPN.

A _______ is a connectionless method of sending data packets on a packet switched service.

Frame relay is a reliable packet service.

The data rate for a T-3 circuit in North America is:

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.

____________ are companies that build a data and telecommunications infrastructure from which other companies can lease services for WANs and MANs.

Another way to refer to dialed services is by the term,plain vanilla telephone service (PVTS).