Chapter 12 - Introduction Wireless Technology

Question 1

(IEEE) Creates and maintains operational standards

Answer 1

Institute of Electrical and Electronics Engineers

Question 2

(FCC) Regulates the use of wireless
devices in the U.S.

Answer 2

Federal Communications
Commission (FCC)

Question 3

(ETSi) Chartered to produce common standards in Europe

Answer 3

European Telecommunications Standards Institute

Question 4

Promotes and tests for WLAN interoperability

Answer 4

Wi-Fi Alliance

Question 5

(WLANA) Educates and raises consumer awareness regarding WLANs

Answer 5

WLAN Association

Question 6

The FCC has released three unlicensed bands for public use:

Answer 6

900MHz, 2.4GHz, and
5GHz.

Question 7

900MHz and 2.4GHz bands are referred to as the (ISM) bands

Answer 7

Industrial, Scientific, and Medical

Question 8

5GHz band is known as the (UNII) band.

Answer 8

5GHz band

Question 9

(DSSS) It’s one of the modulation techniques specified by the original IEEE 802.11 standard and also happens to be the one chosen for use in the widely accepted IEEE 802.11b standard. IEEE 802.11

Answer 9

Direct-Sequence Spread Spectrum

Question 10

(FHSS) modulates the data signal with a carrier signal that changes (hops) in a random but, over time, predictable sequence of frequencies.

Answer 10

Frequency-Hopping Spread Spectrum

Question 11

(OFDM)’s spread-spectrum technique distributes the data
over these 52 carriers, which are spaced apart at precise frequencies. This spacing approach helps prevent demodulators from seeing frequencies other than their own.

Answer 11

Orthogonal Frequency Division Multiplexing

Question 12

(WAP) a component that connects all wire-
less devices together

Answer 12

Wireless Access Point

Question 13

(BSS) The most common use of wireless networking equipment is to give us the wireless equivalent
of a wired network.

Answer 13

Infrastructure Mode: Basic Service Set