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Exam 6: Data Communication: Delivering Information Anywhere and Anytime

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Question 51

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

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The main advantage of a centralized proc...

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Question 52

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_____ refers to using a cellular phone outside of a carrier's limited service area.

A) Routing
B) Teleprocessing
C) Roaming
D) Surfing

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Question 53

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

In a bus topology,hardware devices called _____ are used at each end of the cable to absorb a transmitted signal.

In a typical data communication system,which of the following statements is true of a sender and receiver device?

In the context of communication media,_____ provide a physical path along which signals are transmitted,including twisted pair cable,coaxial cable,and fiber optics.

In the context of different network types,a(n) _____ is typically used to connect workstations and peripheral devices that are in close proximity.

Distributed processing configuration maintains decentralized control and centralized operations.

In _____ data transmission,multiple pieces of data are sent simultaneously to increase the transmission rate.

Any packet-switching network can handle multimedia data.

In data communication,_____ refers to integrating voice,video,and data so that multimedia information can be used for decision making.

List three drawbacks of decentralized systems.

Describe the ring topology.

An access point (AP) is the part of a wireless local area network (WLAN) that connects it to other networks.

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

_____ cables have the highest bandwidth of any communication medium.

What are the major types of networks?

An Ethernet cable is used to connect computers,hubs,switches,and routers to a network.

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

Internet protocol (IP) is responsible for packet forwarding.