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Exam 7: Computer Networks

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Question 41

Multiple Choice

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One type of mobile phone that is not commonly used is the ____.

A) roaming phone
B) landline phone
C) satellite phone
D) analog phone

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Question 42

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Most networking media send data using analog signals.

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Question 43

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____ satellites travel at a speed and direction that keeps pace with the earth's rotation,so they appear (from earth) to remain stationary over a given spot.

Similar to Wi-Fi,____ is designed to provide Internet access to fixed locations (sometimes called hotzones) ,but the coverage is significantly larger.

Workgroup computing is also referred to as _________ computing.

A(n)____________________ is a private network,such as a company LAN,that is set up by an organization for use by its employees

____________________ networks can be used during transport to monitor the temperature inside cargo containers to ensure that products stay within the allowable temperature range.

The technique used for data sent over the Internet is ____.

A(n)small area network (SAN)is a network that covers a relatively small geographical area,such as a home,office building,or school.

With a(n)peer-to-peer (P2P)network,a central server is not used.

____________________ networking devices (such as digital media receivers)can be used to share and deliver digital content throughout the home via a multimedia network.

When parallel transmission is used,the message is sent at least one byte at one time with each bit in the byte taking a separate path.

Physicians can use telemedicine to perform remote diagnosis of patients.

Some wireless ____ are created by cities or large organizations to provide free or low-cost Internet access to residents of a particular area.

Because there may be many Bluetooth devices within range,up to 10 individual Bluetooth networks (called piconets)can be in place within the same physical area at one time.

__________ technology is commonly used to monitor the status of objects,such as shipping boxes,livestock,or expensive equipment to which these types of tags are attached.

The term communications,when used in a computer context,refers to ____________________.

____ transmissions are used with cell phones and are sent and received via cellular (cell) towers.

The ____ allows individuals to "placeshift" multimedia content from their home TVs and DVRs to their portable computer or mobile device.

____________________ phones are most often used by individuals-such as soldiers,journalists,wilderness guides,and researchers-traveling in remote areas where continuous cellular service might not be available.