Wireless Networking Flashcards
Which wireless networking technology used the 5.0-GHz frequency range?
- 11
- 11a
- 11b
- 11a
802. 11a operated in the 5.0-GHz frequency range
Which technology enables use of a WAP without directly connecting the WAP to an AC power outlet?
AES
PoE
Powered Wi-Fi
PoE
Power over Ethernet enables a WAP to use electricity from a PoE switch rather than connect to an AC power outlet directly
Which of the following is known as a Basic Service Set in infrastructure mode?
A WAP
A WPA
A RADIUS server
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
What feature enables 802.11n networks to minimize dead spots?
Channel bonding
MIMO
Transit beamforming
Transit beamforming
Transit beamforming enables an 802.11n WAP to minimize dead spots by using multiple antennas
Which of these consumer electronics may cause interference with 802.11n wireless networks?
Wireless telephones
Wireless televisions
Cellular telephones
Wireless telephones
Many wireless telephones operate in the same 2.4-GHz frequency range as 802.11n wireless networking equipment and may cause interference
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.
Place the WAP in the center of the room.
To achieve maximum coverage, place the WAP in the center of the room
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
An access point
A wireless bridge
A wireless access point or wireless bridge enables you to connect wireless PCs to a wired network segment
What do you call a wireless network in infrastructure mode with more than one access point?
BSS
EBSS
WBSS
EBSS
A wireless network with more than one access point is called an EBSS, or Extended Basic Service Set
What type of server supports EAP-encrypted passwords in accordance with the 802.1X standard?
WAP server
WEP server
RADIUS server
RADIUS server
A RADIUS server provides authentication through a user name and password encrypted with EAP
Which of the following is the most secure method of wireless encryption?
WEP2
WPA
WPA2
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
