Chapter 1

Question 1

ITU-R

Answer 1

International Telecommunication Union Radiocommunication Sector

Set the rules for what the user can do with a radio transmitter.

Question 2

FCC

Answer 2

Federal Communications Commission

Set the rules for what the user can do with a radio transmitter.

Question 3

What can ITU-R and FCC do?

Answer 3

These organizations manage and regulate frequencies, power levels, and transmission methods.

Question 4

IEEE

Answer 4

International Electrical and Electronics Engineers.

Create standards for compatibility and coexistence between networking equipment.

Question 5

IETF

Answer 5

Internet Engineering Task Force

Responsible for creating Internet Standards

Question 6

Wi-Fi Alliance

Answer 6

Performs certification testing to make sure wireless networking equipment conforms to the 802.11 WLAN communication guidelines.

Question 7

ISO

Answer 7

The International Organization of Standarization

Created OSI model for data communications

Question 8

FCC regulates?

Answer 8

Frequency
Bandwidth
Maximum power of IR
Maximum EIRP (Equivalent Isotropically Radiated Power)
Use (Indoor/Outdoor)

Question 9

IETF is a part of what?

Answer 9

ISOC

Question 10

Internet Society groups

Answer 10

Internet Architecture Board
Internet Corporation for Assigned Names and Numbers
Internet Engineering Steering Group
Internet Research Task Force

Question 11

4 Generations of Wifi

Answer 11

802. 11a
803. 11b
804. 11g
805. 11n

Question 12

802.11a

Answer 12

5Ghz, 54 mbps

Question 13

802.11b

Answer 13

2.4Ghz, 11Mbps

Question 14

802.11g

Answer 14

2.4Ghz, 54Mbps

Question 15

802.11n

Answer 15

2.4Ghz, 5Ghz, 450Mbps

Question 16

OSI Model Layers

Answer 16

Application
Presentation
Session
Transport
Network
Data-Link
Physical

Question 17

What is Amplitude?

Answer 17

Amplitude is the height, force, power of the wave.

Question 18

What is a Keying Method?

Answer 18

A keying method is what changes a signal into carrier signal. It provides the signal with the ability to encode data so that it can be communicated or transported.

Question 19

3 Types of Keying methods?

Answer 19

Amplitude-Shift Keying
Frequency-Shift Keying
Phase-Shift Keying

Question 20

802.11 Technology is Typically Deployed at which fundamental layer of network architecture?

Answer 20

Access

Question 21

Which organization is responsible for enforcing maximum transmit power rules in an unlicensed frequency band?

Answer 21

FCC

Question 22

802.11 Wireless Bridge Links are typically associated with which network architecture layer?

Answer 22

Distribution

Question 23

The 802.11-2007 standard was created by which organiation?

Answer 23

All 802 standards were created by IEEE

Question 24

What organization ensures interoperability of WLAN products?

Answer 24

Wi-Fi alliance

Question 25

What type of signal is required to carry data?

Answer 25

Carrier Data

Question 26

Which keying method is most susceptible to interference from noise?

Answer 26

ASK

Question 27

Which sublayer of the OSi model’s Data-Link layer is used for communication between 802.11 radios?

Answer 27

MAC

Question 28

What IETF is responsible for?

Answer 28

RFC documents

Question 29

The Wi-FI alliance is responsible for which of the following certification programs?

Answer 29

WMM

Question 30

Which wave properties can be modulated to encode data?

Answer 30

Amplitude
Frequency
Phase

Question 31

The IEE 802.11-2007 standard defines communication mechanism at which layers of the OSI model?

Answer 31

Physical

Data-Link

Question 32

The Wi-Fi Alliance is responsible for which of the following certification programs?

Answer 32

Voice Personal

WMM-PS

Question 33

What are the advantages of using unlicensed frequency bands for RF transmissions?

Answer 33

There are no additional financial cost.

Anyone can use the frequency band

Question 34

How many layers does OSI have?

Answer 34

7 layers