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CompTIA A+ > Wireless > Flashcards

Wireless Flashcards

1
Q

Wireless

Bridges 802.11 and Ethernet networks

A

Wireless Access Point (WAP)

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2
Q

Wireless

Infrastructure and ad hoc are the

A

Two modes of 802.11

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3
Q

Wireless

5GHz - band
54Mbps

ALPHA

A

802.11a

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4
Q

Wireless

2.4GHz - band
11 Mbps

BRAVO

A

802.11b

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5
Q

Wireless

2.4GHz - band
54Mbps

GOLF

A

802.11g

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6
Q

Wireless

2.4GHz / 5GHz - band
100 Mbps

November

A

802.11n

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7
Q

Wireless

2.4 GHz and 5 GHz ISM bands are used by

A

802.11

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8
Q

Wireless

802.11 uses

A

pre-made channels

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9
Q

Wireless

Shows available channels in an ISM band

A

Site Survey

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10
Q

Wireless

This must be created

A

Service Set Identifier (SSID)

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11
Q

Wireless

Multiple SSIDs are supported by mos

A

WAPs

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12
Q

Wireless

SSID broadcasts can be

A

Hidden

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13
Q

Wireless

Extensions are definable to support

A

Channels
–and–
Channel Width

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14
Q

Wireless

Issues with Connecting to an SSID

A

1 NIC is configured as DHCP client

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15
Q

Wireless

Issues with Connecting to an SSID

A

Passwords can change

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16
Q

Wireless

Issues with Connecting to an SSID

A

Set wireless NIC to a static IP address

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17
Q

Wireless

Wireless clients scan the 802.11 spectrum

A

to find available SSIDs

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18
Q

Wireless

You must know the SSID and password to

A

Connect

19
Q

Wireless

Create profiles that store the SSIDs and their passwords

A

Clients

20
Q

Wireless

Great wireless solution for SOHO environments

A

Mesh Networks

21
Q

Wireless

Mesh networks have a base station and beacon devices that connect to the

A

Base Station

22
Q

Wireless

Mesh networks use their own

A

Encryption

23
Q

Wireless

Mesh networks are universally

A

Easy to configure

24
Q

Wireless

Bluetooth Class 1

DiSS/DiSS

A

100 mW / 100m

25
Q

Wireless

Bluetooth Class 2

aNaL/ToeS

A

2.5 mW / 10m

26
Q

Wireless
Bluetooth Class 3

T / T

A

1 mW/ 1m

27
Q

Wireless

Uses tiny radios activated by the energy of scanning devices

Triffid

A

RFID

28
Q

Wireless

Requires extremely close proximity to function

NoFaCe

A

NFC

29
Q

Wireless

Like 802.11 but pairs with devices to function as point-to-point

A

Bluetooth

30
Q

Wireless

use a wifi-analyzer

A

when having wi-fi problems

31
Q

Wireless

No connectivity

A

SSID - does not exist

or pw has changed

32
Q

Wireless

Low freq signal

A

If too low you wont have connectivity

Get closer to SSID
Look at antennas -
The position may be cause of signal problems

33
Q

Wireless

Limited connectivity

A

Slow transfer speed - figure out where

34
Q

Wireless

Low RF speed

A

You can be connected but. - get closer ….

35
Q

Wireless

Intermittent connectivity

A

Good or bad

Low RF signals -
too many people

Put in QOS

36
Q

Wireless

Helpful to diagnose wireless problems

A

Wi-Fi analyzers

37
Q

Wireless - Quiz

A switch is a

A

Hard wired device

38
Q

Wireless - Quiz

Runs on 5GHz

Alpha

A

802.11a

39
Q

Wireless - Quiz

Which should you try first if your device can’t connect to a remembered public wireless network?

A

Delete the profile and try to make a new connection.

40
Q

Wireless - Quiz

Mesh networks have

A

single base station

41
Q

Wireless - Quiz

Don’t provide the customized configuration required for enterprise-size networks.

A

DO NOT

42
Q

Wireless - Quiz

Rarely used wireless technology

A

Infrared

43
Q

Wireless - Quiz

Which is most-likely to prevent a device from connecting to a previously-used WiFi network

A

The SSID has changed

CompTIA A+ (26 decks)

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