Wireless Networking Flashcards Preview

CompTIA Network+ Certification All-in-one Exam Guide Seventh Edition (Exam N10-007) > Wireless Networking > Flashcards

Flashcards in Wireless Networking Deck (10)
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1
Q

Which wireless networking technology used the 5.0-GHz frequency range?

  1. 11
  2. 11a
  3. 11b
A
  1. 11a

802. 11a operated in the 5.0-GHz frequency range

2
Q

Which technology enables use of a WAP without directly connecting the WAP to an AC power outlet?

AES

PoE

Powered Wi-Fi

A

PoE

Power over Ethernet enables a WAP to use electricity from a PoE switch rather than connect to an AC power outlet directly

3
Q

Which of the following is known as a Basic Service Set in infrastructure mode?

A WAP

A WPA

A RADIUS server

A

A WAP

A single wireless access point (WAP) is a Basic Service Set. WPA is a data encryption scheme. A RADIUS server provides authentication via a user name and password. TKIP is used by the WPA encryption scheme to encrypt the data

4
Q

What feature enables 802.11n networks to minimize dead spots?

Channel bonding

MIMO

Transit beamforming

A

Transit beamforming

Transit beamforming enables an 802.11n WAP to minimize dead spots by using multiple antennas

5
Q

Which of these consumer electronics may cause interference with 802.11n wireless networks?

Wireless telephones

Wireless televisions

Cellular telephones

A

Wireless telephones

Many wireless telephones operate in the same 2.4-GHz frequency range as 802.11n wireless networking equipment and may cause interference

6
Q

o achieve maximum Wi-Fi coverage in a room, where should you place the WAP?

Place the WAP on the north side of the room.

Place the WAP in the center of the room.

Place the WAP near a convenient electrical outlet.

A

Place the WAP in the center of the room.

To achieve maximum coverage, place the WAP in the center of the room

7
Q

What hardware enables wireless PCs to connect to resources on a wired network segment in infrastructure mode? (Select two.)

An access point

A router

A hub

A wireless bridge

A

An access point

A wireless bridge

A wireless access point or wireless bridge enables you to connect wireless PCs to a wired network segment

8
Q

What do you call a wireless network in infrastructure mode with more than one access point?

BSS

EBSS

WBSS

A

EBSS

A wireless network with more than one access point is called an EBSS, or Extended Basic Service Set

9
Q

What type of server supports EAP-encrypted passwords in accordance with the 802.1X standard?

WAP server

WEP server

RADIUS server

A

RADIUS server

A RADIUS server provides authentication through a user name and password encrypted with EAP

10
Q

Which of the following is the most secure method of wireless encryption?

WEP2

WPA

WPA2

A

WPA2

WPA2 is the most secure because it uses CCMP-AES, a 128-bit cipher that is harder to crack than the 128-bit TKIP wrapper used by WPA. Both WPA and WPA2 are stronger than WEP. WEP2 was never fully developed