Question 1

Coding schemes are groups of bits that translate into the "alphabet" of any given system.

Accepted Answer

A) True 
 B)False  True

Question 2

One form of interference with satellite transmission is called raindrop attenuation in which the transmissions are absorbed by heavy rain.

Accepted Answer

A) True 
 B)False  True

Question 3

The predominant method of transferring information internally in a computer is via parallel mode.

Accepted Answer

A) True 
 B)False  True

Question 4

Describe how data could be transmitted using amplitude modulation.Draw this.

Accepted Answer

Amplitude modulation (AM) is a method of

Question 5

In a multipoint circuit configuration,each computer can use the circuit at the same time.

Accepted Answer

A) True 
 B)False

Question 6

In general,networks designed to transmit primarily computer data are likely to be ________,while networks designed to transmit voice data are likely to be ________.

Accepted Answer

A)  slow, fast 
B)  level 1, level 2 
C)  numeric, musical 
D)  direct, indirect 
E)  digital, analog 
A)  slow, fast 
B)  level 1, level 2 
C)  numeric, musical 
D)  direct, indirect 
E)  digital, analog

Question 7

Frequency division multiplexing:

Accepted Answer

A)  operates by statistically time slicing the signal 
B)  operates by dividing the signal into different frequencies 
C)  uses a codec that divides signals into different channels 
D)  operates by time slicing the signal 
E)  operates by light dividing the signal 
A)  operates by statistically time slicing the signal 
B)  operates by dividing the signal into different frequencies 
C)  uses a codec that divides signals into different channels 
D)  operates by time slicing the signal 
E)  operates by light dividing the signal

Question 8

With respect to converting digital data into analog signals,AM stands for:

Accepted Answer

A)  Asynchronous Manchester 
B)  Analog Multimode 
C)  Amplitude Modulation 
D)  Anomaly Multiplexing 
E)  Analytical Mosaic 
A)  Asynchronous Manchester 
B)  Analog Multimode 
C)  Amplitude Modulation 
D)  Anomaly Multiplexing 
E)  Analytical Mosaic

Question 9

Which of the following is not a key advantage of digital transmission?

Accepted Answer

A)  It permits only low transmission rates. 
B)  It is more efficient. 
C)  It is simpler to integrate voice, video, and data on the same circuit. 
D)  It is more secure. 
E)  It produces fewer errors. 
A)  It permits only low transmission rates. 
B)  It is more efficient. 
C)  It is simpler to integrate voice, video, and data on the same circuit. 
D)  It is more secure. 
E)  It produces fewer errors.

Question 10

Fiber optic cable carries signals in traditional electrical form

Accepted Answer

A) True 
 B)False

Question 11

Compare and contrast Frequency Division Multiplexing (FDM)and Wavelength Division Multiplexing (WDM).

Accepted Answer

The answer of Compare and contrast Frequency Division Multiplexing (FDM)and...

Question 12

Describe the three types of data flows,and discuss why some are applicable in some situations and vice versa.

Accepted Answer

The three types of data flows are batch

Question 13

The amount of time it takes to switch between sending and receiving in half-duplex transmission is called the propagation delay.

Accepted Answer

A) True 
 B)False

Question 14

Two fundamentally different types of data are:

Accepted Answer

A)  DSL and ADSL 
B)  asymmetric and symmetric 
C)  Microsoft and IBM 
D)  digital and analog 
E)  local area and wide area 
A)  DSL and ADSL 
B)  asymmetric and symmetric 
C)  Microsoft and IBM 
D)  digital and analog 
E)  local area and wide area

Question 15

The ability to transmit in both directions,but only in one direction at a time is an example of _______________ transmission.

Accepted Answer

A)  simplex 
B)  full-duplex 
C)  half-duplex 
D)  analog 
E)  digital 
A)  simplex 
B)  full-duplex 
C)  half-duplex 
D)  analog 
E)  digital

Question 16

Which of the following statements is true?

Accepted Answer

A)  the longer the distance of a telephone wire between sender and recipient, the lower the bandwidth across that wire 
B)  the shorter the distance of a telephone wire between sender and recipient, the lower the bandwidth across that wire 
C)  bandwidth is constant across any wire, therefore distance is not relevant to its capacity 
D)  the longer the distance of a telephone wire between sender and recipient, the higher the bandwidth across that wire 
E)  bandwidth is not a term that can be used when discussing telephone transmissions 
A)  the longer the distance of a telephone wire between sender and recipient, the lower the bandwidth across that wire 
B)  the shorter the distance of a telephone wire between sender and recipient, the lower the bandwidth across that wire 
C)  bandwidth is constant across any wire, therefore distance is not relevant to its capacity 
D)  the longer the distance of a telephone wire between sender and recipient, the higher the bandwidth across that wire 
E)  bandwidth is not a term that can be used when discussing telephone transmissions

Question 17

Newer telephone circuits,built during the last decade,offer higher quality because they were built using analog transmission.

Accepted Answer

A) True 
 B)False

Question 18

With which type of digital signaling does the signal always return to zero volts after each bit?

Accepted Answer

A)  Non-return-to-zero signaling 
B)  Unipolar signaling 
C)  Return-to-zero signaling 
D)  Data rate signaling 
E)  Huffman encoding signal 
A)  Non-return-to-zero signaling 
B)  Unipolar signaling 
C)  Return-to-zero signaling 
D)  Data rate signaling 
E)  Huffman encoding signal

Question 19

Propagation delay is negligible with satellite transmission.

Accepted Answer

A) True 
 B)False

Question 20

_____________ refers to the difference between the original analog data and the approximation of that data using the techniques for translating from analog data to digital signals.

Accepted Answer

A)  quantizing error 
B)  handshaking phase 
C)  modulating frequency 
D)  POTS anomaly 
E)  amplitude Trellis effect 
A)  quantizing error 
B)  handshaking phase 
C)  modulating frequency 
D)  POTS anomaly 
E)  amplitude Trellis effect

Coding schemes are groups of bits that translate into the "alphabet" of any given system.

One form of interference with satellite transmission is called raindrop attenuation in which the transmissions are absorbed by heavy rain.

The predominant method of transferring information internally in a computer is via parallel mode.

Describe how data could be transmitted using amplitude modulation.Draw this.

In a multipoint circuit configuration,each computer can use the circuit at the same time.

In general,networks designed to transmit primarily computer data are likely to be ,while networks designed to transmit voice data are likely to be .

Frequency division multiplexing:

With respect to converting digital data into analog signals,AM stands for:

Which of the following is not a key advantage of digital transmission?

Fiber optic cable carries signals in traditional electrical form

Compare and contrast Frequency Division Multiplexing (FDM)and Wavelength Division Multiplexing (WDM).

Describe the three types of data flows,and discuss why some are applicable in some situations and vice versa.

The amount of time it takes to switch between sending and receiving in half-duplex transmission is called the propagation delay.

Two fundamentally different types of data are:

The ability to transmit in both directions,but only in one direction at a time is an example of _______________ transmission.

Which of the following statements is true?

Newer telephone circuits,built during the last decade,offer higher quality because they were built using analog transmission.

With which type of digital signaling does the signal always return to zero volts after each bit?

Propagation delay is negligible with satellite transmission.

_____________ refers to the difference between the original analog data and the approximation of that data using the techniques for translating from analog data to digital signals.

Introduction to Data Communications

Application Layer

Data Link Layer

Network and Transport Layers

Wired and Wireless LANs

Backbone Networks

Wide Area Networks

The Internet

Network Security

Network Design

Network Management

Filters

Exam 3: Physical Layer

Coding schemes are groups of bits that translate into the "alphabet" of any given system.

One form of interference with satellite transmission is called raindrop attenuation in which the transmissions are absorbed by heavy rain.

The predominant method of transferring information internally in a computer is via parallel mode.

Describe how data could be transmitted using amplitude modulation.Draw this.

In a multipoint circuit configuration,each computer can use the circuit at the same time.

In general,networks designed to transmit primarily computer data are likely to be ________,while networks designed to transmit voice data are likely to be ________.

Frequency division multiplexing:

With respect to converting digital data into analog signals,AM stands for:

Which of the following is not a key advantage of digital transmission?

Fiber optic cable carries signals in traditional electrical form

Compare and contrast Frequency Division Multiplexing (FDM)and Wavelength Division Multiplexing (WDM).

Describe the three types of data flows,and discuss why some are applicable in some situations and vice versa.

The amount of time it takes to switch between sending and receiving in half-duplex transmission is called the propagation delay.

Two fundamentally different types of data are:

The ability to transmit in both directions,but only in one direction at a time is an example of _______________ transmission.

Which of the following statements is true?

Newer telephone circuits,built during the last decade,offer higher quality because they were built using analog transmission.

With which type of digital signaling does the signal always return to zero volts after each bit?

Propagation delay is negligible with satellite transmission.

_____________ refers to the difference between the original analog data and the approximation of that data using the techniques for translating from analog data to digital signals.

Introduction to Data Communications

Application Layer

Data Link Layer

Network and Transport Layers

Wired and Wireless LANs

Backbone Networks

Wide Area Networks

The Internet

Network Security

Network Design

Network Management

Filters

In general,networks designed to transmit primarily computer data are likely to be ,while networks designed to transmit voice data are likely to be .