Exam 6: Data Communication: Delivering Information Anywhere and Anytime

In the context of data communication,a _____ is based on "line of sight."

A routing table lists _____.

_____ is a technique that combines the strongest features of Wired Equivalent Privacy (WEP)and Extensible Authentication Protocol (EAP)techniques and helps improve the security of wireless networks.

In the context of communication media,what is the difference between a point-to-point system and a multipoint system?

Briefly explain a wide area network (WAN).

The Wi-Fi Protected Access 2 (WPA2)uses _____ to obtain a master key,which is in turn used to negotiate for a key that will be used for a session.

Narrowband is capable of transmitting a maximum of 60,000 bps.

A(n)_____ is a network connection device that can build tables that identify addresses on each network.

Communication media that use an antenna for transmitting data through air or water are called _____.

Explain the main advantage and disadvantage of a centralized processing system.

In the context of data communication,which is true of convergence?

The _____ is a seven-layer architecture for defining how data is transmitted from computer to computer in a network.

_____ is the loss of power in a signal as it travels from the sending device to the receiving device.

Which statement is true of the different forms of sender and receiver devices?

Describe a star topology.

_____ is a set of rules that governs data communication,including error detection,message length,and transmission speed.

In the context of client / server architectures,describe a two-tier architecture.

Distributed processing maintains decentralized control and centralized operations.

_____ is a voice-grade transmission channel capable of transmitting a maximum of 56,000 bps.

What are the disadvantages of centralized routing? Give an example.