Chapter 1

1:
What are the main kinds of remote-access users?
A1:
Answer:

Corporate users in a branch office

Telecommuters working from home

Traveling users/road warriors
2:
At what OSI layer does Frame Relay operate?
A2:
Answer: Layer 2
3:
What addressing feature of Frame Relay allows for frame routing?
A3:
Answer: DLCI (data-link connection identifier)
4:
What are some advantages of Frame Relay?
A4:
Answer:

It has built-in congestion control.

The ability of traffic to burst.

In a partially meshed network, it can allow for the redirection of traffic around an outage.
5:
What are the two main varieties of ISDN?
A5:
Answer: BRI (Basic Rate Interface) and PRI (Primary Rate Interface)
6:
What are two advantages of ISDN?
A6:
Answer:

Quick call setup

It supports a variety of applications.
7:
What are the two main varieties of DSL?
A7:
Answer: Symmetric and asymmetric
8:
What are two advantages of DSL?
A8:
Answer:

High bandwidth

It's always on.
9:
What are some drawbacks of DSL?
A9:
Answer:

Distance limitations

Availability

Speed limitations

[ LiB ]

1:	What are the main kinds of remote-access users?
A1:	Answer: Corporate users in a branch office Telecommuters working from home Traveling users/road warriors
2:	At what OSI layer does Frame Relay operate?
A2:	Answer: Layer 2
3:	What addressing feature of Frame Relay allows for frame routing?
A3:	Answer: DLCI (data-link connection identifier)
4:	What are some advantages of Frame Relay?
A4:	Answer: It has built-in congestion control. The ability of traffic to burst. In a partially meshed network, it can allow for the redirection of traffic around an outage.
5:	What are the two main varieties of ISDN?
A5:	Answer: BRI (Basic Rate Interface) and PRI (Primary Rate Interface)
6:	What are two advantages of ISDN?
A6:	Answer: Quick call setup It supports a variety of applications.
7:	What are the two main varieties of DSL?
A7:	Answer: Symmetric and asymmetric
8:	What are two advantages of DSL?
A8:	Answer: High bandwidth It's always on.
9:	What are some drawbacks of DSL?
A9:	Answer: Distance limitations Availability Speed limitations