802.11 Network Implementation

Front 1

IEEE 802.3-2005 Clause 33 is normally called what ?

Back 1

Power over Ethernet (PoE)

Front 2

What is the 802.3af normally known as?

Back 2

IEEE 802.3-2005 Clause 33

Front 3

What are the two types of the PoE devices defined by the standard?

Back 3

Power device (PD)
Power-Sourcing Equipment (PSE)

Front 4

IEEE 802.3-2005 Clause 33 is normally called what ?

Back 4

Power over Ethernet (PoE)

Front 5

What is the 802.3af normally known as?

Back 5

IEEE 802.3-2005 Clause 33

Front 6

What are the two types of the PoE devices defined by the standard?

Back 6

Power device (PD)
Power-Sourcing Equipment (PSE)

Front 7

A PD compliant with 802.3-2005 must replay to PSE with what?

Back 7

Detection signature

Front 8

What information does the classification signature provide to 802.3-2005 clause 33 PSE?

Back 8

How much power the PD will need

Front 9

What are the 802.3-2005 clause 33 PoE classes?

Back 9

class 0 through 4

Front 10

Why does the PSE provide power greater what is needed by the PD ?

Back 10

power loss due to the cable and connector

Front 11

What is the maximum draw of any powered device complaint with 802.3-2005 clause 33?

Back 11

12.95 watts

Front 12

If a PD complaint with 802.3-2005 clause 33 does not provide a classification signature, what is the default class?

Back 12

Class 0 15.4v

Front 13

What are the names of the two methods that an endpoint PSE complaint with 802.3-2005 clause 33 can used to provide power?

Back 13

Alternative A and Alternative B

Front 14

What cable pairs do PoE alternative A use to provide power over?

Back 14

Data pairs

Front 15

What cable pairs do PoE alternative B use to provide power over?

Back 15

Spare/Unused pairs

Front 16

What PoE alternative does a midspan PSE use?

Back 16

Alternative B

Front 17

What is a midspan PSE commonly knows as?

Back 17

power injector

Front 18

What flavors of Ethernet does 802.3-2005 clause 33 - compliant midspan PSE equipment work with?

Back 18

10BaseT and 100BaseT

Front 19

What are two other names for a point to multipoint network?

Back 19

Hub and spoke,star

Front 20

What does the acronym WISP stand for?

Back 20

Wireless Internet Service Provider

Front 21

What does the acronym SOHO stand for?

Back 21

Small office and Home office

Front 22

What does the acronym FMC stand for?

Back 22

Fixed mobile convergence

Front 23

What is the goal of fixed mobile convergence?

Back 23

To provide a single mobile device, with a single telephone number, that is capable of switching between wireless networks(cellular, WiMAX, 802.11 and so forth), always using the lowest-cost network

Front 24

FMC devices are typically capable of communicating via what types of wireless technologies?

Back 24

cellular telephone networks, VoWiFi networks

Front 25

Which 802.11 amendment could possibly standardize FMC?

Back 25

802.11u

Front 26

what term best describe the time it takes to deliver a VoIP packet from the source device to the destination device?

Back 26

Latency

Front 27

What term is used to describe a variance in latency?

Back 27

Jitter

Front 28

What type of interference is caused by overlapping coverage cells with overlapping frequencies that results in corrupted data?

Back 28

Adjacent Cell Interference

Front 29

Name some potential causes of layer 2 retransmissions.

Back 29

RF interference, adjacent cell interference, Multipath, mismatched power settings, Near/far and Hidden node, low SNR

Front 30

Name three classification of RF interference.

Back 30

Narrowband and wideband Interference, all band interference

Front 31

Which RF technology can cause all-band interference?

Back 31

FHSS

Front 32

What WLAN architecture uses overlapping coverage cells that utilize three channels at 2.4 GHz or numerous channels at 5 GHz?

Back 32

Multiple channel Architecture (MCA)

Front 33

Which WLAN architecture uses multiple access points all transmitting on the same channel and all sharing the same BSSID?

Back 33

Single Channel Architecture (SCA))

Front 34

What are the terms used to describe colocation design in a single architecture that uses layers of multiple APs on a single channel and the same virtual BSSID?

Back 34

Channel blanks, channel spans and channel stacking

Front 35

What problems can be caused by oversized coverage cells?

Back 35

Hidden Node, low capacity, mismatched power setting and and co-channel interference

Front 36

What controller-based mechanism uses layer 1 and layer 4-7 mechanisms to prioritize transmission form stations with higher data rates over the station using lower data rates?

Back 36

Airtime fairness

Front 37

In multiple channel architecture, unnecessary medium contention overhead that occurs because all the Aps are on the same channel is known as what type of of interference?

Back 37

Co-channel interference

Front 38

What type of PoE device can use either the unused twisted pairs or the data pair to carry power?

Back 38

Endpoint

Front 39

What type of PoE devices can use only wired pairs 4/5 and 7/8 to carry power?

Back 39

Midspan

Front 40

What type of wireless device uses proprietary layer 2 routing potocols?

Back 40

wireless mesh router

Front 41

What term describes a wireless device with separate routed interfaces that typically is used to provide shared Internet access in a SOHO environment?

Back 41

Residential wireless gateway(RWG))

Front 42

What type of device can be used to segment mutiple autonomous access points from the protected wired network infrastructure provide RBAC mechanisms?

Back 42

Enterprise wireless gateway (EWG)