Exam 6: Data Communication

Distributed processing maintains decentralized control and centralized operations.

A _____is designed to handle data communication for multiple organizations in a city and sometimes nearby cities as well. ​

_____ is a high-speed carrier service that uses ordinary phone circuits to send and receive data.

In data communication, the _____ is a packet-switching service that operates at 25 Mbps and 622 Mbps, with maximum speed of up to 10 Gbps.

List few drawbacks of decentralized systems.

A _____ is a network operating on a radio frequency (RF), consisting of radio cells, each served by a fixed transmitter.

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.

_____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. ​

_____ is the amount of data that can be transferred from one point to another in one second.

Describe a modem.

_____ allows the linking of devices running on many different platforms.

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

In the context of data communication, which of the following is true of e-collaboration?

A _____works well for companies that are geographically dispersed. ​

The _____ of the Open Systems Interconnection (OSI) model formats message packets.

_____ have the highest bandwidth of any communication medium.

Protocols are devices that connect users to the Internet.

_____is a voice-grade transmission channel capable of transmitting a maximum of 56,000 bps. ​

A _____ is a hardware device that allows several nodes to share one communication channel.