Exam 4: Transmission Media

For ________ transmission media,the transmission capacity,in terms of either data rate or bandwidth,depends critically on the distance and on whether the medium is point-to-point or multipoint.

(Multiple Choice)

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Question 21

A loss between the transmitting and receiving antennas caused by water vapor and oxygen is ________.

(Multiple Choice)

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Question 22

In a data transmission system the ________ medium is the physical path between transmitter and receiver.

(Short Answer)

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Question 23

The same antenna cannot be used for both transmission and reception in two way communication.

(True/False)

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Question 24

Wireless transmission frequencies in the range of 30 MHz to 1 GHz are suitable for omnidirectional applications and are referred to as the ________ range.

(Multiple Choice)

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Question 25

Microwave is used in cellular systems.

(True/False)

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Question 26

The simplest radiation pattern is produced by the ________ antenna,which is a point in space that radiates power in all directions equally.The actual radiation pattern is a sphere with the antenna at the center.

(Short Answer)

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Question 27

When using optical fiber,the term ________ refers to the change in direction of light rays after they strike small particles or impurities in the medium.

(Multiple Choice)

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Question 28

Attenuation is significantly lower for optical fiber than for coaxial cable or twisted pair and is constant over a wide range.

(True/False)

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Question 29

Wireless transmission occurring through the atmosphere,outer space or water is an example of ________.

(Multiple Choice)

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Question 30

The parabolic reflective antenna is a type of antenna used in terrestrial microwave and satellite applications.

(True/False)

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Question 31

The ________ class is targeted for support of next generation applications beyond 10-Gbps Ethernet.

(Multiple Choice)

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Question 32

Data rate and distance are not a key concern when designing a data transmission system.

(True/False)

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Question 33

The transmission media that are used to convey information can be classified as guided or unguided.

(True/False)

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Question 34

The two different types of light source used in fiber optic systems are the ________.

(Multiple Choice)

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Question 35

The ________ frequency band is used for satellite communication,radar,terrestrial microwave links,and wireless local loop.

(Short Answer)

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Question 36

Typically used for long distance applications,________ propagation provides superior performance because there is a single transmission path.

(Multiple Choice)

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Question 37

The characteristics and quality of a data transmission are determined both by the characteristics of the medium and the characteristics of the signal.

(True/False)

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Question 38

Coaxial cable is used to transmit both analog and digital signals.

(True/False)

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Question 39

Microwave is used for satellite communications.

(True/False)

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Question 40

Showing 21 - 40 of 45

Exam 4: Transmission Media

For ________ transmission media,the transmission capacity,in terms of either data rate or bandwidth,depends critically on the distance and on whether the medium is point-to-point or multipoint.

A loss between the transmitting and receiving antennas caused by water vapor and oxygen is ________.

In a data transmission system the ________ medium is the physical path between transmitter and receiver.

The same antenna cannot be used for both transmission and reception in two way communication.

Wireless transmission frequencies in the range of 30 MHz to 1 GHz are suitable for omnidirectional applications and are referred to as the ________ range.

Microwave is used in cellular systems.

The simplest radiation pattern is produced by the ________ antenna,which is a point in space that radiates power in all directions equally.The actual radiation pattern is a sphere with the antenna at the center.

When using optical fiber,the term ________ refers to the change in direction of light rays after they strike small particles or impurities in the medium.

Attenuation is significantly lower for optical fiber than for coaxial cable or twisted pair and is constant over a wide range.

Wireless transmission occurring through the atmosphere,outer space or water is an example of ________.

The parabolic reflective antenna is a type of antenna used in terrestrial microwave and satellite applications.

The ________ class is targeted for support of next generation applications beyond 10-Gbps Ethernet.

Data rate and distance are not a key concern when designing a data transmission system.

The transmission media that are used to convey information can be classified as guided or unguided.

The two different types of light source used in fiber optic systems are the ________.

The ________ frequency band is used for satellite communication,radar,terrestrial microwave links,and wireless local loop.

Typically used for long distance applications,________ propagation provides superior performance because there is a single transmission path.

The characteristics and quality of a data transmission are determined both by the characteristics of the medium and the characteristics of the signal.

Coaxial cable is used to transmit both analog and digital signals.

Microwave is used for satellite communications.

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