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CompTIA A+ 220-1001 & 220-1002 > A+ 1002: CH20 Review > Flashcards

A+ 1002: CH20 Review Flashcards

1
Q

How many bits does WEP encryption use to scramble data packets?

30
20
40
50

A

40

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2
Q

What is the max capacity for Data Transfer between infrared devices?

3 Mbps
1 Mbps
4 Mbps
2 Mbps

A

4 Mbps

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3
Q

What is another name for the Service Set Identifier parameter?

Network path
Network protocol
Network address
Network name

A

Network name

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4
Q

What is the theoretical max range of the 802.11a wireless networking standard?

150 Feet
200 Feet
250 Feet
300 Feet

A

150 Feet

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5
Q

What wireless network mode can quickly be used to share files and printers without a WAP?

Infrastructure
Ad Hoc
WAN
Multiple Access

A

Ad Hoc

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6
Q

What method do wireless networks use to determine if other nodes are currently broadcasting?

MIMO
CSMA/CD
CSMA/CA
Dipole Antennae

A

CSMA/CA

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7
Q

What is the standard straight-wire omnidirectional wireless antenna called?

Unipole
Bipole
Dipole
Omnipole

A

Dipole

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8
Q

What enables you to connect to the Internet through a Network-aware smartphone, tablet, or mobile device?

802.11b
Cellular wireless network
MAC filtering
802.11n

A

Cellular WIreless Network

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9
Q

What is a wireless service area that has been extended by adding more WAPs?

SID
BSS
EBSS
EWAP

A

EBSS

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10
Q

What is the max distance of a class 3 bluetooth device?

5 Meters
100 Meters
10 Meters
1 Meter

A

1 Meter

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11
Q

Which feature allows you to plug a single Ethernet Cable into the WAP to provide both power and a network connection?

PoE
SID
ESSI
POW

A

PoE

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12
Q

Which protocol does WPA use to provide a new encryption key for every sent packet?

SSL
TKIP
WEP
SSH

A

TKIP

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13
Q

Most WAPs support filtering, in which data packets that do not contain the appropriate address are rejected. What kind of address is filtered?

WPA
SSID
WEP
MAC

A

MAC

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14
Q

At what frequency range do 802.11b and 802.11g based wireless technologies operate?

  1. 4 GHz
  2. 4 GHz
  3. 4 GHz
  4. 4 GHz
A

2.4 GHz

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15
Q

What process needs to be undertaken to enable Bluetooth devices to create a secure connection?

Pairing
Finding
Duplicating
Searching

A

Pairing

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16
Q

What is the gain from a typical WAP?

12 dB
10 dB
1 db
2 dB

A

2 dB

17
Q

What standard has a security flaw that allows a hacker to guess an 8-digit code?

WPA
WEP
WPS
WPA2

A

WPS

18
Q

Which wireless networking standard supports data throughput of up to 11 Mbps?

  1. 11a
  2. 11b
  3. 11c
  4. 11g
A

802.11b

19
Q

What type of wireless network is very small and designed for “quick-and-dirty” jobs?

MAN
LAN
PAN
WAN

A

PAN

20
Q

Which standard or protocol provides a security improvement that WPA addresses over WEP?

EAP
IrDA
SWAP
TCP/IP

A

EAP

21
Q

Which standard or protocol represents a security improvement in WPA2 over WEP and WPA?

IrDA
EAP
TCP/IP
AES

A

AES

22
Q

What method enables you to limit access to your Wireless Network based on the physical, hard-wired address of the units wireless NIC?

MAC Address Filtering
OFDM
NTFS Permissions
SSID Broadcasting

A

MAC Address Filtering

23
Q

What should you open up to troubleshoot a suspected hardware problem?

Task Manager
BIOS
Windows Device Manager
Windows Update

A

Windows Device Manager

24
Q

What WPA/WPA2 Encryption version uses a RADIUS server for secure authentication?

SSIDv3
WPA/WPA2-Enterprise
WPA/WPA2-PSK
SSIDv4

A

WPA/WPA2-Enterprise

25
Q

What centrally connects wireless network nodes in the same way that a hub connects wired ethernet PCs?

WEP
EAP
WPA
WAP

A

WAP

26
Q

What frequencies does 802.11n use?

5 and 24 GHz
2.4 and 5 GHz
11 and 54 MHz
2.4 and 11 MHz

A

2.4 and 5 GHz

27
Q

At what frequency range does the 802.11a based wireless technology operate?

3 GHz
1 GHz
7 GHz
5 GHz

A

5 GHz

28
Q

What is the first step in choosing an optimal location for an Access point?

Site Survey
Interference Control
Market Research
Software Upgrades

A

Site Survey

29
Q

What wireless technology is often used to connect headsets to smartphones?

Bluetooth
WPA-PSK
WPA-Enterprise
AES

A

Bluetooth

30
Q

What 802.11n feature increases its range and speed?

WPA-PSK
CSMA/CA
SSID
MIMO

A

MIMO

31
Q

What WAP settings should be adjusted in an environment with overlapping WIFI signals?

SSID and MAC Filtering
Default user name and password
Channel and Frequency
Encryption Protocols

A

Channel and Frequency

32
Q

What is the speed at which 802.11g wireless technology transfers data?

54 Mbps
64 Mbps
20 Mbps
11 Mbps

A

54 Mbps

33
Q

Where is the location for an omni-directional antenna in your home office?

In the Basement
On the Roof
Adjacent to the outside wall
Near the center

A

Near the center

CompTIA A+ 220-1001 & 220-1002 (36 decks)

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