Exam 10: Communications and Networks: Sending and Receiving Digital Content

COGNITIVE ASSESSMENT You own a third-party business that provides networking services such as EDI, secure data and information transfer, storage, and email. Into what category of business does this business fall?

Which of the following terms is an electrical disturbance that can degrade communications?

As illustrated in the accompanying figure, on what kind of network must all of the computers and devices (nodes) on the network connect to a central device?

____________________ is a network technology that defines how messages are routed from one end of a network to the other, ensuring the data arrives correctly by dividing it into packets.

Transmission from a satellite to an earth-based station is called an uplink.

One of the more widely used transmission media for network cabling and landline phone systems is twisted-pair cable.

COGNITIVE ASSESSMENT Which of the following technologies is the new tollbooth on the local highway most likely to use?

Which of the following defines how a network uses close-range radio signals to communicate between two devices or objects equipped with this technology?

A(n) ____________________ is a network that connects computers and devices in a limited geographical area, such as a home, school computer laboratory, or office building.

COGNITIVE ASSESSMENT Which of the following technologies is your new mobile phone payment device most likely to use?

Which of the following enables a computer or device that does not have built-in networking capability to access a network?

COGNITIVE ASSESSMENT Which of the following has a port to which a cable connects in order to coordinate the transmission and receipt of data, instructions, and information to and from the computer or device containing it?

Which of the following is a central communications device that allows computers and devices to transfer data wirelessly among themselves or to transfer data wirelessly to a wired network?

COGNITIVE ASSESSMENT Which network type connects each computer and device to a central device?

In a fiber-optic cable, each strand, called an optical fiber, is as thin as a human hair.

ISDN is more widely used now than in the past.

COGNITIVE ASSESSMENT What is another term for an Internet peer-to-peer network?

Depending on the transmission media used, Ethernet networks have data transfer rates that range from 10 Gbps for small office/home users to 1000 Gbps for enterprise users.

A(n) ____________________ is a high-speed network that connects networks in an area such as a city or town and handles the bulk of communications activity across that region.

Each computer or device on a local area network, called a(n) ____________________, often shares resources such as printers, large hard drives, and programs.