Question 1

Which of the following statements is true?

Accepted Answer

A)  Satellites can transmit signals to only 25 Earth stations at a time.
B)  It is extremely expensive for satellites to transmit signals to more than 50 Earth stations at a time.
C)  Satellites can transmit signals to an unlimited number of receiving Earth stations.
D)  Satellite transmissions lose quality if they are received by too many Earth stations.
E)  Microwave relays produce better quality transcontinental pictures than satellite transmission. C

Question 2

Explain how major international events such as the Olympic Games are relayed from game site to home viewer via satellite.

Accepted Answer

Major international events such as the Olympic Games are relayed from the game site to home viewers via satellite through a complex network of communication and broadcasting technology.

First, the live footage of the events is captured by cameras and other recording equipment at the game site. This footage is then transmitted to a production facility where it is edited, packaged, and prepared for broadcast.

From the production facility, the signal is sent to a satellite uplink facility, where it is transmitted to a communication satellite in geostationary orbit. The satellite then retransmits the signal back to Earth, where it can be received by satellite dishes at television stations and by individual viewers with satellite receivers.

At the receiving end, the signal is decoded and processed by television stations and cable or satellite providers before being broadcast to viewers' homes. This entire process allows for the near-instantaneous relay of live events from the game site to home viewers around the world, enabling people to watch and experience major international events as they happen in real-time.

Question 3

The Internet network resembles a

Accepted Answer

A)  satellite distribution system.
B)  television distribution system.
C)  cable distribution system.
D)  radio distribution system.
E)  radio broadcast date system. C

Question 4

Describe how cable systems bring signals into homes from video sources available to them.

Accepted Answer

The answer of Describe how cable systems bring signals into...

Question 5

What are the advantages of fiber-optics over other traditional wire relays?

Accepted Answer

The answer of What are the advantages of fiber-optics over...

Question 6

Cable television is able to distribute a large number of channels to subscriber homes because it

Accepted Answer

A)  uses certain VHF frequencies not available to over-the-air broadcasters.
B)  uses addressable converters.
C)  compresses the bandwidth of each television signal.
D)  multiplexes two and three signals on each channel.
E)  propagates numerous waves over the air.

Question 7

One advantage of fiber-optic cable is that

Accepted Answer

A)  its high capacity makes it perfect for handling digitally processed information.
B)  much attenuation occurs, increasing the number of repeater amplifiers.
C)  down-converters translate the information into ranges usable by TV sets.
D)  telemetering devices convey transmissions far more rapidly than copper.
E)  transponders amplify weak signals as they transverse optical fiber.

Question 8

__________ will eventually replace most of the conventional copper telephone wires.

Accepted Answer

A)  Coaxial cables
B)  Fiber optics
C)  Helical scanners
D)  Microwaves
E)  Quadruplex

Question 9

Cable systems avoid problems of signal interference and spectrum crowding by sending signals through the artificial, enclosed environment of coaxial cable or fiber-based cable.

Accepted Answer

A) True 
 B)False

Question 10

Satellites that appear to be suspended over the same spot on Earth are known as __________satellites.

Accepted Answer

A)  national transmission
B)  gravitational
C)  nonsynchronous
D)  orbiting
E)  geostationary

Question 11

Each satellite needs two groups of frequencies, one for uplinking and the other for downlinking.

Accepted Answer

A) True 
 B)False

Question 12

Microwave relays are used in broadcasting for

Accepted Answer

A)  signal amplification.
B)  digital recording.
C)  program storage.
D)  common carriage.
E)  program distribution.

Question 13

Discuss why modems are necessary to reach the Internet.

Accepted Answer

The answer of Discuss why modems are necessary to reach...

Question 14

Satellites link one specific location with only two others in sending and receiving points in the relay network.

Accepted Answer

A) True 
 B)False

Question 15

What barriers exist to adoption of CableCARD (CC) technology?

Accepted Answer

The answer of What barriers exist to adoption of CableCARD...

Question 16

In fiber-optic cable, hair-thin strands of extremely pure glass convey modulated light beams.

Accepted Answer

A) True 
 B)False

Question 17

Discuss advantages and disadvantages of microwave relays.

Accepted Answer

The answer of Discuss advantages and disadvantages of microwave relays....

Question 18

A cable television system assembles programs at the system's __________ for delivery to subscribers.

Accepted Answer

A)  booster station
B)  down converter
C)  headend
D)  trunk repeater
E)  uplink

Question 19

The Internet began in the late 1960s as a government-sponsored computing network called NSFnet.

Accepted Answer

A) True 
 B)False

Question 20

Communication satellites need five essential groups of components: transponders, antennas, power supplies, telemetering devices, and thrusters.

Accepted Answer

A) True 
 B)False

Exam 5: Distribution by Wired Relays, Wireless Relays, and Over the Internet

Which of the following statements is true?

Explain how major international events such as the Olympic Games are relayed from game site to home viewer via satellite.

The Internet network resembles a

Describe how cable systems bring signals into homes from video sources available to them.

What are the advantages of fiber-optics over other traditional wire relays?

Cable television is able to distribute a large number of channels to subscriber homes because it

One advantage of fiber-optic cable is that

__________ will eventually replace most of the conventional copper telephone wires.

Cable systems avoid problems of signal interference and spectrum crowding by sending signals through the artificial, enclosed environment of coaxial cable or fiber-based cable.

Satellites that appear to be suspended over the same spot on Earth are known as __________satellites.

Each satellite needs two groups of frequencies, one for uplinking and the other for downlinking.

Microwave relays are used in broadcasting for

Discuss why modems are necessary to reach the Internet.

Satellites link one specific location with only two others in sending and receiving points in the relay network.

What barriers exist to adoption of CableCARD (CC) technology?

In fiber-optic cable, hair-thin strands of extremely pure glass convey modulated light beams.

Discuss advantages and disadvantages of microwave relays.

A cable television system assembles programs at the system's __________ for delivery to subscribers.

The Internet began in the late 1960s as a government-sponsored computing network called NSFnet.

Communication satellites need five essential groups of components: transponders, antennas, power supplies, telemetering devices, and thrusters.