Exam 12: Wide Area Network Essentials

Describe the X.25 technology.

What would an Asynchronous Transfer Mode (ATM) network be best suited for?

When would you most likely NOT choose to use a leased line connection?

You work for a large enterprise company that handles time-sensitive information. Your supervisor has asked that you set up a connection to be kept in stand-by until emergencies. He requests that the line have at least 1.544 Mbps for bandwidth. Describe what technology and format you'll want to use, and why this is the ideal choice for the situation described.

Which cloud computing category refers to the use of software hosted on a service provider's network, and is usually subscription based?

If a portion of a T-Carrier line is used for one purpose and a different portion for another purpose, the line has been ____________.

The CPE must be able to send data in the correct format onto the connection that makes up the ___________ and receives data coming from that connection.

Although a frame relay connection is established in much the same way that a T1 connection is, which of the following is an important distinction between the two technologies?

MATCHING :

A router is considered to be a CSU/DSU.

What is a DCE, and what does it do?

________ is a cell-based packet-switching technology in which the cells are of a fixed length rather than typical packet-based systems that use variable length packets.

Describe the difference between a digital signal and an analog signal.

What is the difference between the two types of virtual circuits?

Explain how V.92 modems achieve 56 Kbps over traditional phone lines.

The plain old telephone service is a good example of what kind of WAN technology?

Some of the most common packet-switched WAN network technologies are X.25, frame relay, and MPLS. Name and describe another packet switched WAN technology.

T-Carrier lines only require a CSU/DSU on the customer's side of the connection.

Multiprotocol Label Switching (MPLS) supports both IPv4 and IPv6, as well as other network layer protocols.

Part of SONET's flexibility comes from its ability to be arranged in several different physical topologies. Which of the following is NOT a possible SONET topology?