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Exam 8: Communications and Networks

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Question 21

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In a communication system,which among the following convert messages into packets that can travel across the communication channel?

A) connection devices
B) sending and receiving devices
C) storage devices
D) secondary devices

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Question 22

Multiple Choice

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In a communication system,which among the following originate and accept messages in the form of data,information,and/or instructions?

A) communication channel
B) sending and receiving devices
C) connection devices
D) data transmission specifications

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Question 23

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A(n) ________ is a private network that connects more than one organization.

Differentiate between analog and digital signals.

Connection devices are the actual connecting or transmission medium that carries the message.

A prototype is a set of communication rules for the exchange of information.

Most firewalls include a special computer called a ________ server to manage communications between the internal networks and the outside world.

A ________ is a network where the nodes are in close physical proximity to each other.

Every computer on the Internet has a unique numeric address called a(n) ________.

The range of Wi-Fi networks using microwave connections is being extended over greater distances using a new technology known as ________.

Which physical connection is the fastest?

A firewall is a specialized technology designed to protect an organization's network against external threats.

What is a WLAN? How does it work?

With respect to peer-to-peer network,there is an abundant amount of powerful management software that monitors the network activities.

The capacity of a communication channel is measured in ________.

________ is a term relating to sending data to a satellite.

The most common standard in LANs is called ethernet.

Which among the following is considered a line-of-sight communication medium?

Fiber-optic cable transmits data as pulses of light through tiny tubes of glass.

________ is a high-frequency transmission medium that has a single solid-copper core.