(OLD) €h 18 - Wireless

Question 0

18–2 services and applications

Reliability of wireless =

Answer 0

Consistency of service

Question 1

18–2 services and applications

Technological considerations of wireless =

Answer 1

Scalability

Question 2

18–3 services and applications

Environmental considerations =

Answer 2

Materials, objects, local geography, atmosphere

Question 3

18–4 wireless standards and technologies

PAN =
LAN =
MAN =
GAN =

Answer 3

• 33 ft
• small geographic area, within an office building
• 50mi
• satellite

Question 4

18–5 wireless standards and technologies

802.15.4 =

Answer 4

ZigBee’s

Question 5

18–6 wireless standard technologies

WiMax

Answer 5

30 miles per hour

Question 6

18–7 emerging wireless technologies and related standards

MBWA=

Answer 6

• Mobile broadband wireless access
• IEEE 802.20
• 100mi

Question 7

18–12 electromagnetic spectrum

Spectrum groups =
2

Answer 7

• Ultra high frequency (UHF)

* 300 MHz to 3000 MHz

Question 8

18–13 spectrum groups

Band 6 =
Band 8 =
Band 9 =

Answer 8

• Medium
• very high
• ultrahigh

Question 9

18–17 modulation demodulation techniques used in wireless systems

Modulation technique =

Answer 9

Except, CDMA does not belong

Question 10

18–20 pre-design and survey analysis

Heavy moisture =

Answer 10

Causes disruptions in RF

Question 11

18–21 licensed wireless networks

6 GHz and 11 GHz =

Answer 11

Public Safety applications (share office, law office)

Question 12

18–23 design considerations

Radomes =

Answer 12

Covers antennas

Question 13

18–26

Antenna types =

Answer 13

Except, trapezoidal, does not belong

Question 14

18–28 waveguide feeders

High-frequency coaxial =

Answer 14

Very highly losses

Question 15

18–28 waveguide feeders

Waveguide joined =

Answer 15

Airtight flange fittings

Question 16

18–28 waveguide feeders

Elliptical waveguide =

Answer 16

Long runs

Question 17

18–29 pressurization equipment

Towers (wireless) =

Answer 17

5mi airport

Antenna supporting structure > 200ft high

Question 18

18–30 pigtails and jumpers

Antenna =
2

Answer 18

• 7/8 type N connector

* Connector weakest point

Question 19

18–30 power supplies and voltage objectives

Two major types voltage injectors =

Answer 19

Coaxial & unused pair

Question 20

18–31 cable management

Feed line support =

Answer 20

1-1/2 inch above the roof

Question 21

18–33 DAS

DAS transmits =

Answer 21

Within buildings

Question 22

18–33 DAS

DAS root =

Answer 22

Radio transceiver

Question 23

18–34 DAS

DAS size =

Answer 23

Single antenna or multi-antenna

Question 24

18–35 cable plant

Five types of DAS cable =

Answer 24

Except wireless or password hybrid

Question 25

18–35 cable plant

Shielded twisted pairs =

Answer 25

Carries power for the units

Question 26

18–36 components

Antenna =

Answer 26

Must be tuned to the same frequency band

Question 27

18–36 components

Radiating cable technology allows =

Answer 27

Coaxial cable

Question 28

18–40 components

Retransmitted DAS services =

Answer 28

Except, family radio service (FRS) does not belong

Question 29

18–43 components

Passive =

Answer 29

Does not require external power input

Question 30

18–43 topologies

Cabling topologies DAS within
2

Answer 30

Star

Tapped-trunk

Question 31

18–44 star topology

Start topology cabling for DAS =

Answer 31

Balanced twisted-pair, coaxial, optical fiber cables

Question 32

18–46 DAS

First-generation (1G) =

Answer 32

Analog cellular

Question 33

18–47 multiplexing technique

Forms of multiplexing =

Answer 33

Except GDMA does not belong “grandma”

Question 34

18–59 basic service set (BS)

AP =

Answer 34

“Stand alone” or cable

Question 35

18–67

routers =

Answer 35

Home-office