Exam 8: Wide Area Networks

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.

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

Basic rate interface:

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

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

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

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

An intranet VPN connects different organizations over the Internet.

A star architecture:

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

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

Why would someone today still use POTS?

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

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

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

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

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

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

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

In a ring design WAN,