Exam 4: Network Management and Mobility

The distinguishing characteristic of packet switching is that once a connection is made between the source and destination,the path of the signal along the nodes is dedicated and exclusive.

What are the basic functions or needs supported by business networks?

Virtual private networks (VPN)are private tunnels in the Internet that are created by __________.

Multiple networks were needed to transmit documents,voice,and video because:

With __________,voice and data transmissions travel over telephone wires,but the content is sent as data packets.

Wireless routers are actually wired routers with __________ built-in that provide both wired and wireless at the same time.

__________ is a technology that allows computers to share a network or internet connection wirelessly without the need to connect to a commercial network.

The 802.11b standard improves upon other 802.11 Wi-Fi standards by adding multiple-input multiple-output (MIMO)and many other newer features.

An enterprise's collaboration capability depends on:

Plain old telephone service (POTS)and most wired telephone calls are transmitted,at least in part,over a __________.

Transmission of a signal over a series of networks is made possible by switches and routers,which are hardware devices,and nodes on the network.

Why had various information services-namely documents,voice,and video-functioned independently of each other?

A __________ is a set of rules that govern how devices on a network exchange information and function in order to "talk to each other."

What was a cause of the U.S.Customs' network crash at Los Angeles Airport (LAX)that stranded passengers for up to 11 hours?

When you send a file or e-mail message over a network,it is broken into smaller blocks called __________ that follow different paths from the source to the destination.

__________ is an 802.16-based broadband wireless metropolitan area network access standard that can deliver voice and data services at distances of up to 30 miles,without the expense of cable or the distance limitations of DSL.

An enterprise's network capability depends on all of the following except:

All are factors contributing to mobility except:

Mobile and other devices must be able to communicate with a network and they do so based on __________.

TCP/IP was created by the U.S.Department of Defense to ensure and preserve data security and control communications in the event of catastrophic war.