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Exam 6: Communications, Networks, and Cyberthreats: the Wired and Wireless World

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Question 51

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Telecommuting means using a computer and networks to work from ________; telework means working from ________.

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Question 52

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Public wireless access points are called _________.

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Question 53

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A communications medium is a channel; there are three types of wired communications media.The one consisting of two strands of insulated copper wire,used by tradition telephone systems,is known as ________.

Ethernet is a long-distance wireless communications connection.

A(n)________ is an interface (linking device)used to connect the same types of networks,whereas a(n)________ is an interface permitting communications between dissimilar networks.

Peer-to-peer networks are less stable than client-server networks because in the former certain shared resources reside on each user's machine.

A gateway is an interface device permitting communication between similar networks.

To create larger networks,a bridge connects the same types of networks,and a ________ connects dissimilar networks.

_________ is an international standard widely adopted in the U.S.A.,Europe,and Asia that supports fast cellphone data transfer rate; this standard has not been adopted yet by all carriers.

If you have one computer,you need firewall hardware; if you have more than one (networked)computer,then a software firewall should be used.

What short-distance wireless standard is used to link cell phones,computers,and peripherals at distances of up to about 33 feet?

What are the four types of cyberintruders?

What is the primary purpose of the modem?

Client / server networks and peer-to-peer networks are the same except that the first type of network uses a mainframe and the second type uses only microcomputers.

Private networks that use a public network,usually the Internet,to connect remote sites are called ________.

Telephones have always been digital devices.

A computer that acts like a disk drive,storing the programs and data files shared by users on a LAN,is the ________ server.

A LAN is a type of network that covers a wide geographical area.

A type of wired communications technology used to connect equipment in a home network is the following:

A common connection device that connects computers to a network and that sends messages (checks packets) between sender and receiver nodes is called a ________.