Exam 6: Data Communication: Delivering Information Anywhere and Anytime

All Internet connections require a modem.

Data transmission channels are generally divided into two types: broadband and narrowband.

____ is using a cellular phone outside of a carrier's limited service area.

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

Ethernet is a standard communication protocol embedded in software and hardware devices used for building a LAN.

Radiated media use an antenna for transmitting data through air or water.

LANs are used most often to ____.

A bridge connects two LANs using the same protocol,and the communication medium must be the same on both LANs.

Any packet-switching network can handle multimedia data.

When phone lines are used for Internet connections,a digital modem is necessary to convert a computer's digital signals to analog signals.

Wireless network traffic can be captured with sniffers.

What are the major types of networks?

Fiber-optic cables have a higher capacity,smaller size,lighter weight,lower attenuation,and higher security than other cable types.

Internet protocol is responsible for packet forwarding.

The most common n-tier architecture involves ____ tiers.

What are coaxial cables? How are they used?

____ cables are glass tubes surrounded by concentric layers of glass,called "cladding," to form a light path through wire cables.

Protocols help ensure compatibility between different manufacturers' devices.

What are some of the advantages of wireless and mobile networks?

A(n)____________________ network connects workstations and peripheral devices that are in close proximity.