Question 1

The length of an antenna should be about ____ the wavelength.

Accepted Answer

A)  1/10 of 
B)  1/4 of 
C)  1/2 of 
D)  equal to 
A)  1/10 of 
B)  1/4 of 
C)  1/2 of 
D)  equal to

Question 2

What is the difference between an analog and digital signal? Provide an example of each signal type.

Accepted Answer

An analog signal is a continuous signal

Question 3

A basic rule of thumb is that each 6 dB increase in EIRP results in a quadrupling of the transmission range (distance from the antenna), and a 6 dB reduction in EIRP translates into reducing the range by four

Accepted Answer

A) True 
 B)False

Question 4

Whenever a wave completes its trip and returns back to the starting point it has finished two cycles.

Accepted Answer

A) True 
 B)False

Question 5

____ modulation changes the number of waves representing one cycle.

Accepted Answer

A)  Amplitude 
B)  Phase shift 
C)  Frequency 
D)  Phase 
A)  Amplitude 
B)  Phase shift 
C)  Frequency 
D)  Phase

Question 6

When an RF signal moves from one medium to another of a different density the signal actually bends instead of traveling in a straight line. This is known as ____.

Accepted Answer

A)  reflection 
B)  absorption 
C)  refraction 
D)  scattering 
A)  reflection 
B)  absorption 
C)  refraction 
D)  scattering

Question 7

The maximum EIRP for IEEE 802.11b WLANs is ____ mW.

Accepted Answer

A)  10 
B)  100 
C)  1000 
D)  10,000 
A)  10 
B)  100 
C)  1000 
D)  10,000

Question 8

Match between columns
                        Premises: changes to a signal that can be made to enable it to carry information
bending caused by an object in the path of the transmission
equal to current times resistance
occurs when the RF signal comes in contact with elements in the air, such as rain or heavy dust particles
up-and-down wave
orientation of the radio waves as they leave the antenna
negative difference in amplitude between signals
rate at which an event occurs
voltage multiplied by the current

Accepted Answer

The Answer of scattering and frequency and electrical power and is...

Question 9

The ASK 1 bit has a carrier signal (positive voltage) while a 0 bit has no signal (zero voltage).

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is an electromagnetic wave?

Accepted Answer

A)  light 
B)  heat 
C)  radio 
D)  All of the above 
A)  light 
B)  heat 
C)  radio 
D)  All of the above

Question 11

What is the most common type of antenna for a WLAN?

Accepted Answer

The most common type of antenna for a WL

Question 12

____ antennas are used for long distance, point-to-point wireless links, such as connecting buildings that are up to 42 kilometers (25 miles) apart.

Accepted Answer

A)  Fresnel 
B)  Omni-directional 
C)  Semi-directional 
D)  Highly-directional 
A)  Fresnel 
B)  Omni-directional 
C)  Semi-directional 
D)  Highly-directional

Question 13

What is the free space loss (in dB) for IEEE 802.11b and 802.11g WLANs when the distance in meters is 100?

Accepted Answer

A)  80 
B)  88 
C)  92 
D)  97 
A)  80 
B)  88 
C)  92 
D)  97

Question 14

Highly-directional antennas are generally concave dish-shaped devices.

Accepted Answer

A) True 
 B)False

Question 15

A(n) ____________________ is a copper wire or similar device that has one end up in the air and the other end connected to the ground or a grounded device.

Accepted Answer

The answer of A(n) ____________________ is a copper wire or...

Question 16

Television uses three types of modulation. The video portion uses ____.

Accepted Answer

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

Question 17

There are several advantages of digital modulation over analog modulation. What are they?

Accepted Answer

Digital modulation makes better use of t

Question 18

What is a problem with measuring RF loss using a linear scale?

Accepted Answer

A)  it does not reveal what the loss is in relation to the whole 
B)  it is inaccurate 
C)  it is difficult to calculate 
D)  it requires complex measurements 
A)  it does not reveal what the loss is in relation to the whole 
B)  it is inaccurate 
C)  it is difficult to calculate 
D)  it requires complex measurements

Question 19

How does an antenna work?

Accepted Answer

An antenna is a copper wire or similar d

Question 20

Which of the following types of wave is imperceptible?

Accepted Answer

A)  light 
B)  radio 
C)  heat 
D)  ether 
A)  light 
B)  radio 
C)  heat 
D)  ether

The length of an antenna should be about ____ the wavelength.

What is the difference between an analog and digital signal? Provide an example of each signal type.

A basic rule of thumb is that each 6 dB increase in EIRP results in a quadrupling of the transmission range (distance from the antenna), and a 6 dB reduction in EIRP translates into reducing the range by four

Whenever a wave completes its trip and returns back to the starting point it has finished two cycles.

____ modulation changes the number of waves representing one cycle.

When an RF signal moves from one medium to another of a different density the signal actually bends instead of traveling in a straight line. This is known as ____.

The maximum EIRP for IEEE 802.11b WLANs is ____ mW.

The ASK 1 bit has a carrier signal (positive voltage) while a 0 bit has no signal (zero voltage).

Which of the following is an electromagnetic wave?

What is the most common type of antenna for a WLAN?

____ antennas are used for long distance, point-to-point wireless links, such as connecting buildings that are up to 42 kilometers (25 miles) apart.

What is the free space loss (in dB) for IEEE 802.11b and 802.11g WLANs when the distance in meters is 100?

Highly-directional antennas are generally concave dish-shaped devices.

A(n) ____________________ is a copper wire or similar device that has one end up in the air and the other end connected to the ground or a grounded device.

Television uses three types of modulation. The video portion uses ____.

There are several advantages of digital modulation over analog modulation. What are they?

What is a problem with measuring RF loss using a linear scale?

How does an antenna work?

Which of the following types of wave is imperceptible?

Its a Wireless World

Wireless LAN Devices and Standards

IEEE 80211 Physical Layer Standards

IEEE 80211 Media Access Control and Network Layer Standards

Planning and Deploying a Wireless LAN

Conducting a Site Survey

Wireless LAN Security and Vulnerabilities

Implementing Wireless Lan Security

Managing a Wireless LAN

Network Settings and Wireless LAN Troubleshooting

Personal, Metropolitan, and Wide Area Wireless Networks

Filters

Exam 3: How Wireless Works

The length of an antenna should be about ____ the wavelength.

What is the difference between an analog and digital signal? Provide an example of each signal type.

A basic rule of thumb is that each 6 dB increase in EIRP results in a quadrupling of the transmission range (distance from the antenna), and a 6 dB reduction in EIRP translates into reducing the range by four

Whenever a wave completes its trip and returns back to the starting point it has finished two cycles.

____ modulation changes the number of waves representing one cycle.

When an RF signal moves from one medium to another of a different density the signal actually bends instead of traveling in a straight line. This is known as ____.

The maximum EIRP for IEEE 802.11b WLANs is ____ mW.

The ASK 1 bit has a carrier signal (positive voltage) while a 0 bit has no signal (zero voltage).

Which of the following is an electromagnetic wave?

What is the most common type of antenna for a WLAN?

____ antennas are used for long distance, point-to-point wireless links, such as connecting buildings that are up to 42 kilometers (25 miles) apart.

What is the free space loss (in dB) for IEEE 802.11b and 802.11g WLANs when the distance in meters is 100?

Highly-directional antennas are generally concave dish-shaped devices.

A(n) ____________________ is a copper wire or similar device that has one end up in the air and the other end connected to the ground or a grounded device.

Television uses three types of modulation. The video portion uses ____.

There are several advantages of digital modulation over analog modulation. What are they?

What is a problem with measuring RF loss using a linear scale?

How does an antenna work?

Which of the following types of wave is imperceptible?

Its a Wireless World

Wireless LAN Devices and Standards

IEEE 80211 Physical Layer Standards

IEEE 80211 Media Access Control and Network Layer Standards

Planning and Deploying a Wireless LAN

Conducting a Site Survey

Wireless LAN Security and Vulnerabilities

Implementing Wireless Lan Security

Managing a Wireless LAN

Network Settings and Wireless LAN Troubleshooting

Personal, Metropolitan, and Wide Area Wireless Networks

Filters