Question 1

Which of the following best describes bandwidth in an analog system?

Accepted Answer

A)  the range of frequencies that can be transmitted by a system 
B)  the number of bits transmitted per second 
C)  the number of bytes transmitted per minute 
D)  the maximum frequency supported by the medium 
A)  the range of frequencies that can be transmitted by a system 
B)  the number of bits transmitted per second 
C)  the number of bytes transmitted per minute 
D)  the maximum frequency supported by the medium A

Question 2

What process must occur to transmit a digital signal over an analog medium?

Accepted Answer

A)  modulation 
B)  decoupling 
C)  decoding 
D)  emitting 
A)  modulation 
B)  decoupling 
C)  decoding 
D)  emitting A

Question 3

MATCHING
-a method of encoding a digital signal onto an analog carrier wave for transmission over media that does not support direct digital signal transmission

Accepted Answer

A) ASCII 
B) amplitude modulation 
C) analog signal 
D) baud rate 
E) carrier signal
F)digital modulation
G)frequency modulation
H)hopping code
I)NRZ
J)PM 
A) ASCII 
B) amplitude modulation 
C) analog signal 
D) baud rate 
E) carrier signal
F)digital modulation
G)frequency modulation
H)hopping code
I)NRZ
J)PM F

Question 4

Which of the following transmits a signal in an infrared device?

Accepted Answer

A)  diffuser 
B)  emitter 
C)  detector 
D)  antenna 
A)  diffuser 
B)  emitter 
C)  detector 
D)  antenna

Question 5

MATCHING
-the number of times that a carrier signal changes per second

Accepted Answer

A) ASCII 
B) amplitude modulation 
C) analog signal 
D) baud rate 
E) carrier signal
F)digital modulation
G)frequency modulation
H)hopping code
I)NRZ
J)PM 
A) ASCII 
B) amplitude modulation 
C) analog signal 
D) baud rate 
E) carrier signal
F)digital modulation
G)frequency modulation
H)hopping code
I)NRZ
J)PM

Question 6

What are the advantages and limitations of an infrared wireless system?

Accepted Answer

Infrared wireless systems have several a

Question 7

Which radio transmission method uses a chipping code?

Accepted Answer

A)  FM 
B)  FHSS 
C)  DSSS 
D)  AM 
A)  FM 
B)  FHSS 
C)  DSSS 
D)  AM

Question 8

Describe how radio transmitters use a carrier signal.

Accepted Answer

Radio transmitters send what is known as

Question 9

MATCHING
-a binary signaling technique that increases the voltage to represent a 1 bit but provides no voltage for a 0 bit

Accepted Answer

A) ASCII 
B) amplitude modulation 
C) analog signal 
D) baud rate 
E) carrier signal
F)digital modulation
G)frequency modulation
H)hopping code
I)NRZ
J)PM 
A) ASCII 
B) amplitude modulation 
C) analog signal 
D) baud rate 
E) carrier signal
F)digital modulation
G)frequency modulation
H)hopping code
I)NRZ
J)PM

Question 10

Which best describes an analog signal?

Accepted Answer

A)  it starts and stops 
B)  intensity varies and is continuous 
C)  consists of discrete pulses 
D)  Morse code is an example 
A)  it starts and stops 
B)  intensity varies and is continuous 
C)  consists of discrete pulses 
D)  Morse code is an example

Question 11

Which of the following is true about wireless radio signal transmissions?

Accepted Answer

A)  they travel at the speed of light 
B)  they require an atmosphere to move 
C)  they travel as discrete particles 
D)  they require visible light 
A)  they travel at the speed of light 
B)  they require an atmosphere to move 
C)  they travel as discrete particles 
D)  they require visible light

Question 12

What is the unit of measurement for radio frequency?

Accepted Answer

A)  volt 
B)  rpm 
C)  Hz 
D)  amp 
A)  volt 
B)  rpm 
C)  Hz 
D)  amp

Question 13

The distance between a point in one wave cycle and the same point in the next wave cycle is called which of the following?

Accepted Answer

A)  amplitude 
B)  wavelength 
C)  carrier 
D)  frequency 
A)  amplitude 
B)  wavelength 
C)  carrier 
D)  frequency

Question 14

MATCHING
-a signal in which the intensity (amplitude or voltage) varies continuously and smoothly over a period of time

Accepted Answer

A) ASCII 
B) amplitude modulation 
C) analog signal 
D) baud rate 
E) carrier signal
F)digital modulation
G)frequency modulation
H)hopping code
I)NRZ
J)PM 
A) ASCII 
B) amplitude modulation 
C) analog signal 
D) baud rate 
E) carrier signal
F)digital modulation
G)frequency modulation
H)hopping code
I)NRZ
J)PM

Question 15

MATCHING
-a technique that changes the starting point of a wave cycle in response to a change in the amplitude of the input signal

Accepted Answer

A) ASCII 
B) amplitude modulation 
C) analog signal 
D) baud rate 
E) carrier signal
F)digital modulation
G)frequency modulation
H)hopping code
I)NRZ
J)PM 
A) ASCII 
B) amplitude modulation 
C) analog signal 
D) baud rate 
E) carrier signal
F)digital modulation
G)frequency modulation
H)hopping code
I)NRZ
J)PM

Question 16

Which of the following is NOT an advantage of digital modulation over analog modulation?

Accepted Answer

A)  better use of bandwidth 
B)  requires less power 
C)  better performance during interference 
D)  modulation techniques are simpler 
A)  better use of bandwidth 
B)  requires less power 
C)  better performance during interference 
D)  modulation techniques are simpler

Question 17

How are radio waves transmitted using an antenna?

Accepted Answer

Radio waves are usually transmitted and

Question 18

Which type of radio signal is most susceptible from interference sources such as lightning?

Accepted Answer

A)  AM 
B)  FM 
C)  PM 
D)  DM 
A)  AM 
B)  FM 
C)  PM 
D)  DM

Question 19

The ASCII code uses 16 bits to represent 128 different characters.

Accepted Answer

A) True 
 B)False

Question 20

MATCHING
-a technique that changes the number of wave cycles in response to a change in the amplitude of the input signal

Accepted Answer

A) ASCII 
B) amplitude modulation 
C) analog signal 
D) baud rate 
E) carrier signal
F)digital modulation
G)frequency modulation
H)hopping code
I)NRZ
J)PM 
A) ASCII 
B) amplitude modulation 
C) analog signal 
D) baud rate 
E) carrier signal
F)digital modulation
G)frequency modulation
H)hopping code
I)NRZ
J)PM

Which of the following best describes bandwidth in an analog system?

What process must occur to transmit a digital signal over an analog medium?

MATCHING -a method of encoding a digital signal onto an analog carrier wave for transmission over media that does not support direct digital signal transmission

Which of the following transmits a signal in an infrared device?

MATCHING -the number of times that a carrier signal changes per second

What are the advantages and limitations of an infrared wireless system?

Which radio transmission method uses a chipping code?

Describe how radio transmitters use a carrier signal.

MATCHING -a binary signaling technique that increases the voltage to represent a 1 bit but provides no voltage for a 0 bit

Which best describes an analog signal?

Which of the following is true about wireless radio signal transmissions?

What is the unit of measurement for radio frequency?

The distance between a point in one wave cycle and the same point in the next wave cycle is called which of the following?

MATCHING -a signal in which the intensity (amplitude or voltage) varies continuously and smoothly over a period of time

MATCHING -a technique that changes the starting point of a wave cycle in response to a change in the amplitude of the input signal

Which of the following is NOT an advantage of digital modulation over analog modulation?

How are radio waves transmitted using an antenna?

Which type of radio signal is most susceptible from interference sources such as lightning?

The ASCII code uses 16 bits to represent 128 different characters.

MATCHING -a technique that changes the number of wave cycles in response to a change in the amplitude of the input signal

Introduction to Wireless Communications

Radio Frequency Communications

How Antennas Work

Wireless Personal Area Networks

High-Rate Wireless Personal Area Networks

Low-Speed Wireless Local Area Networks

High-Speed Wlans and Wlan Security

Wireless Metropolitan Area Networks

Wireless Wide Area Networks

Radio Frequency Identification and Near-Field Communication

Wireless Communications in Business

Filters

Exam 2: Wireless Data Transmission

Which of the following best describes bandwidth in an analog system?

What process must occur to transmit a digital signal over an analog medium?

MATCHING -a method of encoding a digital signal onto an analog carrier wave for transmission over media that does not support direct digital signal transmission

Which of the following transmits a signal in an infrared device?

MATCHING -the number of times that a carrier signal changes per second

What are the advantages and limitations of an infrared wireless system?

Which radio transmission method uses a chipping code?

Describe how radio transmitters use a carrier signal.

MATCHING -a binary signaling technique that increases the voltage to represent a 1 bit but provides no voltage for a 0 bit

Which best describes an analog signal?

Which of the following is true about wireless radio signal transmissions?

What is the unit of measurement for radio frequency?

The distance between a point in one wave cycle and the same point in the next wave cycle is called which of the following?

MATCHING -a signal in which the intensity (amplitude or voltage) varies continuously and smoothly over a period of time

MATCHING -a technique that changes the starting point of a wave cycle in response to a change in the amplitude of the input signal

Which of the following is NOT an advantage of digital modulation over analog modulation?

How are radio waves transmitted using an antenna?

Which type of radio signal is most susceptible from interference sources such as lightning?

The ASCII code uses 16 bits to represent 128 different characters.

MATCHING -a technique that changes the number of wave cycles in response to a change in the amplitude of the input signal

Introduction to Wireless Communications

Radio Frequency Communications

How Antennas Work

Wireless Personal Area Networks

High-Rate Wireless Personal Area Networks

Low-Speed Wireless Local Area Networks

High-Speed Wlans and Wlan Security

Wireless Metropolitan Area Networks

Wireless Wide Area Networks

Radio Frequency Identification and Near-Field Communication

Wireless Communications in Business

Filters