Chapter 14

Question 1

Which wireless networking technology used the 5.0 GHz frequency range?
A) 802.11
B) 802.11a
C) 802.11b
D) 802.11g

Answer 1

B) 802.11a operated in the 5.0 GHz frequency range.

Question 2

Which technology enables use of a WAP without directly connection the WAP to an AC power outlet?
A) AES
B) PoE
C) Powered Wi-Fi
D) TKIP

Answer 2

B) Power of Ethernet (PoE) enables a WAP to use electricity from a PoE switch rather than connect to an AC power outlet directly.

Question 3

Which of the following is know as a Basic Service Set in infrastructure mode?
A) A WAP
B) A WPA
C) A RADIUS server
D) A TKIP

Answer 3

A) A single Wireless Access Point (WAP) is a Basic Service Set. WPA is a Data encryption scheme. A RADIUS server provides authentication via a username / password. TKIP is used by the WPA encryption scheme to encrypt the data.

Question 4

What feature enables 802.11n networks to minimize dead spots?
A) Channel Bonding
B) FIFO
C) MIMO
D) Transit beamforming

Answer 4

D) Transit Beamforming enables an 802.11n WAP to minimize dead spots by using multiple antennas.

Question 5

Which of these consumer electronics may cause interference with 802.11n wireless networks?
A) Wireless Telephones
B) Wireless Televisions
C) Cellular Telephones
D) Television remote controls

Answer 5

A) Many wireless telephones operate in the same 2.4 GHz Frequency range as 802.11n wireless networking equipment as may cause interference.

Question 6

To achieve maximum Wi-Fi coverage in a room, where should you place the WAP?
A) Place the WAP on the north side of the room.
B) Place the WAP in the center of the room.
C) Place the WAP near a convenient electrical outlet.
D) It doesn’t matter where you place the WAP.

Answer 6

B) To achieve maximum coverage, place teh WAP in the center of the room.

Question 7

What hardware enables wireless PCs to connect to resources on a wired network segment in infrastructure mode? (Select Two)
A) An Access Point
B) A Router
C) A Hub
D) A Wireless bridge

Answer 7

A and D) A wireless Access Point or wireless Bridge enables you to connect wireless PCs to a wired network segment.

Question 8

What do you call a wireless network network in infrastructure mode with more than one access point?
A) BSS
B) EBSS
C) WBSS
D) ExNet

Answer 8

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

Question 9

What type of server supports EAP-encrypted passwords in accordance with the 802.1x standard?
A) WAP server
B) WEP server
C) RADIUS server
D) NAS server

Answer 9

C) A RADIUS server provides authentication through a username and password encrypted with EAP.

Question 10

Which of the following is the most secure method of wireless encryption?
A) WEP
B) WEP2
C) WPA
D) WPA2

Answer 10

D) 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.

Question 11

A\_\_\_\_ only allows a specific computer to join the network.
A) Bluelist
B) Whitelist
C) Blacklist
D) Redlist

Answer 11

B) Whitelist - means you allow only specific computer to join the network.

Question 12

A\_\_\_\_denies a specific computer from joining the network.
A) Bluelist
B) Whitelist
C) Blacklist
D) Redlist

Answer 12

C) Blacklist - means you deny specific computer from joining your network.

Question 13

What does RADIUS stand for?
A) Remote Access Dial-in User Service
B) Remote Authentication Dial-In User Service
C) Remote Authentication Dial-In Uni Service
D) None of the above

Answer 13

B) RADIUS Stands for Remote Authentication Dial-In User Service