Question 1

List and briefly define the kinds of communications involved with the 802.11 standard.

Accepted Answer

The 802.11 standard involves two types o

Question 2

A(n)transceiver is a device that sends out and picks up radio waves.

Accepted Answer

A) True 
 B)False

Question 3

On a wireless network, moving a laptop from cell to cell is an example of roaming.

Accepted Answer

A) True 
 B)False

Question 4

Which is not a benefit of radio wave communications compared to other wireless options?

Accepted Answer

A) It is relatively inexpensive to install. 
B) It is relatively easy to install. 
C) Speeds are extremely fast. 
D) None of the above. 
A) It is relatively inexpensive to install. 
B) It is relatively easy to install. 
C) Speeds are extremely fast. 
D) None of the above.

Question 5

LEO stands for ____________________.

Accepted Answer

low earth orbiting,L

Question 6

The peak optical transmission power for the 802.11R standard is 3 watts.

Accepted Answer

A) True 
 B)False

Question 7

Match between columns
                        Premises: An association formed to promote wireless networking and supported by wireless network device manufacturers and promoters, such as Alvarion, Cisco Systems, and Wireless Central.
A network interface card that has an antenna and is used for wireless communications.
A wireless topology that consists of two or more wireless stations that can be in communication.
An alliance of companies that certifies 802.11 devices that meet the standard of wireless fidelity.
An encryption standard developed by ANSI and the National Institute of Standards and Technology.
An error handling technique that helps to reduce communication errors created by sources of interference, such as adverse weather conditions.
A wireless communication technique that spreads the data across any of up to 14 channels, each 22 MHz in width.
Functions by dividing the 5 GHz frequency range into a series of small subcarriers or subchannels and transmits information all at once over all of the subcarriers.
A research consortium of universities for wireless networking; has been in operation since 1989.

Accepted Answer

The Answer of OFDM and ARQ and DES and WINLAB is...

Question 8

An omnidirectional antenna can strengthen the radiated signal to a greater degree than a directional antenna.

Accepted Answer

A) True 
 B)False

Question 9

Infrared is an electromagnetic signal, just as a radio wave is an electromagnetic signal.

Accepted Answer

A) True 
 B)False

Question 10

Transmission latency of LEO satellites is much lower than for regular satellite transmissions.

Accepted Answer

A) True 
 B)False

Question 11

____ technologies are typically used for short distance communications with in an office, a building, or between buildings.

Accepted Answer

A) Radio 
B) Infrared 
C) Microwave 
D) Both A and B. 
A) Radio 
B) Infrared 
C) Microwave 
D) Both A and B.

Question 12

802.11a communications use the ____ band.

Accepted Answer

A) 902 MHz 
B) 2.4 GHz 
C) 5 GHz 
D) 8.2 GHz 
A) 902 MHz 
B) 2.4 GHz 
C) 5 GHz 
D) 8.2 GHz

Question 13

Hams are not licensed to transmit ____ signals over radio waves and microwaves.

Accepted Answer

A) video 
B) satellite 
C) Morse code 
D) None of the above. 
A) video 
B) satellite 
C) Morse code 
D) None of the above.

Question 14

You would probably use ____ technologies to send network transmissions across continents via satellite communications.

Accepted Answer

A) Radio 
B) Infrared 
C) Microwave 
D) Both B and C. 
A) Radio 
B) Infrared 
C) Microwave 
D) Both B and C.

Question 15

List two advantages and two disadvantages of radio wave communications.

Accepted Answer

Advantages of radio wave communications

Question 16

Wireless technologies are now more reliable than ever.

Accepted Answer

A) True 
 B)False

Question 17

You most likely use 802.11b devices ____.

Accepted Answer

A) for data-oriented transmissions 
B) when a large amount of bandwidth is required 
C) when there are many individual users in a small area, such as in a computer lab 
D) All of the above. 
A) for data-oriented transmissions 
B) when a large amount of bandwidth is required 
C) when there are many individual users in a small area, such as in a computer lab 
D) All of the above.

Question 18

All devices that conform to the 802.11b standard must be able to transmit at 6, 12, and 24 Mbps.

Accepted Answer

A) True 
 B)False

Question 19

In ____ access, the access point device also functions as a point coordinator.

Accepted Answer

A) CSMA/CA 
B) distributed 
C) priority-based 
D) point 
A) CSMA/CA 
B) distributed 
C) priority-based 
D) point

Question 20

Typically it costs more to implement 802.11a than 802.11b.

Accepted Answer

A) True 
 B)False

List and briefly define the kinds of communications involved with the 802.11 standard.

A(n)transceiver is a device that sends out and picks up radio waves.

On a wireless network, moving a laptop from cell to cell is an example of roaming.

Which is not a benefit of radio wave communications compared to other wireless options?

LEO stands for ____________________.

The peak optical transmission power for the 802.11R standard is 3 watts.

An omnidirectional antenna can strengthen the radiated signal to a greater degree than a directional antenna.

Infrared is an electromagnetic signal, just as a radio wave is an electromagnetic signal.

Transmission latency of LEO satellites is much lower than for regular satellite transmissions.

____ technologies are typically used for short distance communications with in an office, a building, or between buildings.

802.11a communications use the ____ band.

Hams are not licensed to transmit ____ signals over radio waves and microwaves.

You would probably use ____ technologies to send network transmissions across continents via satellite communications.

List two advantages and two disadvantages of radio wave communications.

Wireless technologies are now more reliable than ever.

You most likely use 802.11b devices ____.

All devices that conform to the 802.11b standard must be able to transmit at 6, 12, and 24 Mbps.

In ____ access, the access point device also functions as a point coordinator.

Typically it costs more to implement 802.11a than 802.11b.

Lan/Wan Networking: an Overview

Lan/Wan Interconnectivity

Physical Transmission Options

Network Transmission Equipment

Lan Protocols

Tcp/Ip Past, Present, and Future

Wan Transport Methods

ATM Technologies

Integrating Voice, Video, and Data

Lan and Wan Design: Putting It All Together

Filters

Exam 9: Wireless Technologies

List and briefly define the kinds of communications involved with the 802.11 standard.

A(n)transceiver is a device that sends out and picks up radio waves.

On a wireless network, moving a laptop from cell to cell is an example of roaming.

Which is not a benefit of radio wave communications compared to other wireless options?

LEO stands for ____________________.

The peak optical transmission power for the 802.11R standard is 3 watts.

An omnidirectional antenna can strengthen the radiated signal to a greater degree than a directional antenna.

Infrared is an electromagnetic signal, just as a radio wave is an electromagnetic signal.

Transmission latency of LEO satellites is much lower than for regular satellite transmissions.

____ technologies are typically used for short distance communications with in an office, a building, or between buildings.

802.11a communications use the ____ band.

Hams are not licensed to transmit ____ signals over radio waves and microwaves.

You would probably use ____ technologies to send network transmissions across continents via satellite communications.

List two advantages and two disadvantages of radio wave communications.

Wireless technologies are now more reliable than ever.

You most likely use 802.11b devices ____.

All devices that conform to the 802.11b standard must be able to transmit at 6, 12, and 24 Mbps.

In ____ access, the access point device also functions as a point coordinator.

Typically it costs more to implement 802.11a than 802.11b.

Lan/Wan Networking: an Overview

Lan/Wan Interconnectivity

Physical Transmission Options

Network Transmission Equipment

Lan Protocols

Tcp/Ip Past, Present, and Future

Wan Transport Methods

ATM Technologies

Integrating Voice, Video, and Data

Lan and Wan Design: Putting It All Together

Filters