Question 1

_____ are dedicated digital circuits that are the most commonly used form of dedicated circuit services in North America today.

Accepted Answer

A)  Wideband analog services 
B)  SMDS 
C)  ATM 
D)  T-carrier services 
E)  ISDN 
A)  Wideband analog services 
B)  SMDS 
C)  ATM 
D)  T-carrier services 
E)  ISDN

Question 2

Using a chart format,list,define and briefly describe two dialed circuit services,three dedicated circuit services,and two packet switched services.

Accepted Answer

Dialed Circuit Services:
1. Plain Old Te

Question 3

_____________ is sometimes called a Layer 2.5 technology.

Accepted Answer

A)  ATM 
B)  MPLS 
C)  Ethernet 
D)  TCP 
E)  IP 
A)  ATM 
B)  MPLS 
C)  Ethernet 
D)  TCP 
E)  IP

Question 4

Circuit switched networks run over the public switched telephone networks operated by the common carriers.

Accepted Answer

A) True 
 B)False

Question 5

Draw a diagram of packet switched service,and describe packet switching concepts.

Accepted Answer

Packet switching is a method of transmit

Question 6

Common carriers sell or lease communication services and facilities to the public.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is a difference between ATM and frame relay?

Accepted Answer

A)  Frame relay encapsulates packets. 
B)  Frame relay is an unreliable packet service. 
C)  Frame relay has a maximum CIR speed of up to 45 Mbps. 
D)  Frame relay does not perform error control at each node in the network. 
E)  Frame relay provides packet switched service. 
A)  Frame relay encapsulates packets. 
B)  Frame relay is an unreliable packet service. 
C)  Frame relay has a maximum CIR speed of up to 45 Mbps. 
D)  Frame relay does not perform error control at each node in the network. 
E)  Frame relay provides packet switched service.

Question 8

In a ring design WAN,

Accepted Answer

A)  messages can take a long time to travel from the sender to the receiver 
B)  a message arrives at all computers on the network simultaneously 
C)  messages always arrive faster than in other types of layouts 
D)  messages are delivered directly from sender to receiver because there is a point-to-point connection directly between each sender and each receiver 
E)  messages always take one second to travel between sender and receiver 
A)  messages can take a long time to travel from the sender to the receiver 
B)  a message arrives at all computers on the network simultaneously 
C)  messages always arrive faster than in other types of layouts 
D)  messages are delivered directly from sender to receiver because there is a point-to-point connection directly between each sender and each receiver 
E)  messages always take one second to travel between sender and receiver

Question 9

One type of ISDN is BRI (basic rate interface).

Accepted Answer

A) True 
 B)False

_____ are dedicated digital circuits that are the most commonly used form of dedicated circuit services in North America today.

Using a chart format,list,define and briefly describe two dialed circuit services,three dedicated circuit services,and two packet switched services.

_____________ is sometimes called a Layer 2.5 technology.

Circuit switched networks run over the public switched telephone networks operated by the common carriers.

Draw a diagram of packet switched service,and describe packet switching concepts.

Common carriers sell or lease communication services and facilities to the public.

Which of the following is a difference between ATM and frame relay?

In a ring design WAN,

One type of ISDN is BRI (basic rate interface).

Introduction to Data Communications

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Wired and Wireless LANs

Backbone Networks

The Internet

Network Security

Network Design

Network Management

Filters

Exam 8: Wide Area Networks

_____ are dedicated digital circuits that are the most commonly used form of dedicated circuit services in North America today.

Using a chart format,list,define and briefly describe two dialed circuit services,three dedicated circuit services,and two packet switched services.

_____________ is sometimes called a Layer 2.5 technology.

Circuit switched networks run over the public switched telephone networks operated by the common carriers.

Draw a diagram of packet switched service,and describe packet switching concepts.

Common carriers sell or lease communication services and facilities to the public.

Which of the following is a difference between ATM and frame relay?

In a ring design WAN,

One type of ISDN is BRI (basic rate interface).

Introduction to Data Communications

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Wired and Wireless LANs

Backbone Networks

The Internet

Network Security

Network Design

Network Management

Filters