Deck 8: Wireless Networks 2

Question 1

802.11i offers stronger security than WPA.

Answer 1

True

Question 2

A rogue access point is an unauthorized access point.

Answer 2

True

Question 3

802.11i uses WEP as its encryption method.

Answer 3

False

Question 4

WEP is so strong that it cannot be cracked with readily available software.

Question 5

802.11i is attractive compared with WPA because ________.

A)802.11i offers stronger security
B)802.11i offers quality of service
C)many older devices can be upgraded to 802.11i
D)802.11i was standardized by the Wi-Fi Alliance
E)All of the above.

Question 6

Who created WPA?

A)The Internet Engineering Task Force.
B)ISO.
C)The 802.1 Working Group.
D)The 802.11 Working Group.
E)The Wi-Fi Alliance.

Question 7

What is the strongest security protocol for 802.11 today?

A)802.11i.
B)802.11s.
C)802.11X.
D)WPA.
E)WEP.

Question 8

How long does it take an attacker to crack WEP today with readily available software?

A)About ten seconds.
B)About ten minutes.
C)About ten hours.
D)About ten days.
E)WEP cannot be cracked with readily available software.

Question 9

What does the Wi-Fi Alliance call 802.11i?

A)802.1x.
B)802.11s.
C)802.11X.
D)WPA.
E)WPA2.

Question 10

What security protocol originally came with 802.11 equipment?

A)WPA.
B)WEP.
C)Both A and B
D)Neither A nor B

Question 11

802.11i and WPA are different names for the same standard.

Question 12

An unauthorized internal access point is a(n)________.

A)evil twin access point
B)rogue access point
C)Both A and B

Question 13

WPA has been partially cracked.

Question 14

WPA was created by the Internet Engineering Task Force.

Question 15

What security protocol originally came with 802.11 equipment?

A)802.11e.
B)802.11i.
C)WPA.
D)WEP.

Question 16

WEP is a strong core security protocol.

Question 17

Which of the above offers stronger security?

A)WPA.
B)802.11i.
C)Both A and B offer equally strong security.

Question 18

To drive around a city looking for working access points that are unprotected is ________.

A)drive-by hacking
B)war driving

Question 19

Breaking into WLANs is ________.

A)drive-by hacking
B)war driving

Question 20

802.11i uses ________ as its encryption method.

A)RC4
B)802.11s
C)AES-CCMP
D)WPA

Question 21

Which of the following is NOT a security extension to EAP?

A)EAP-TTLS.
B)MS-EAP.
C)PEAP.

Question 22

802.1X needs security between the authenticator and the computer in ________.

A)Ethernet
B)802.11i
C)Both A and B
D)Neither A nor B

Question 23

In 802.11i PSK mode,the pass phrase should be at least ________ characters long.

A)6
B)8
C)20
D)40
E)128

Question 24

Which of the following secures communication between the wireless computer and the server it wishes to use against evil twin attacks?

A)VLANs.
B)VPNs.
C)PEAP.
D)IPsec.
E)SSL/TLS.

Question 25

A notebook computer configured to act like a real access point is a(n)________.

A)evil twin access point
B)rogue access point
C)Both A and B

Question 26

802.1X needs security between the authenticator and the computer in Ethernet.

Question 27

The most popular standard for extended 802.1X security is PEAP.

Question 28

A notebook computer configured to act like a real access point is a rogue access point.

Question 29

802.1X needs security between the authenticator and the computer in 802.11 wireless access.

Question 30

The most popular standard for extended 802.1X security is ________.

A)EAP-TTLS
B)MS-EAP
C)PEAP

Question 31

PSK mode automatically prevents the use of weak keys.

Question 32

The Wi-Fi Alliance refers to 802.1X mode as ________ mode.

A)AES
B)PSK
C)enterprise
D)EAP

Question 33

A central authentication server is used in 802.11i PSK mode.

Question 34

In VPNs designed to frustrate evil twin attacks,the shared secret ________.

A)is transmitted in the clear
B)is transmitted with cryptographic protections
C)is not transmitted
D)Any of the above.

Question 35

An evil twin access point can launch attacks against the corporate network.

Question 36

What damage can an evil twin access point do?

A)Eavesdrop on communication.
B)Steal important keys or other information transmitted by the client.
C)Launch attacks against corporate servers.
D)All of the above.
E)Only A and B

Question 37

If a company uses 802.11i for its core security protocol,an evil twin access point will set up ________ 802.11i connection(s).

A)one
B)two
C)four
D)sixteen

Question 38

The security in 802.1X is sufficient for its direct use in 802.11 WLANs.

Question 39

In 802.11i ________,hosts must know a shared key.

A)802.1X mode
B)PSK mode
C)Both A and B
D)Neither A nor B

Question 40

In what mode of 802.11i operation is a central authentication server used?

A)802.1X mode.
B)PSK mode.
C)Both A and B
D)Neither A nor B

Question 41

Bluetooth does not use access points.

Question 42

Centralized access point management raises management costs.

Question 43

Bluetooth is commonly used for ________.

A)wireless mice
B)wireless headphones
C)Both A and B
D)Neither A nor B

Question 44

I wish to have a wireless LAN to serve my house.I will use ________.

A)802.11
B)Bluetooth
C)Either A or B

Question 45

Managed access points should ________.

A)identify rogue access points
B)be able to push updates out to access points
C)Both A and B
D)Neither A nor B

Question 46

As much as possible,WLAN management software should be able to work automatically,taking as many actions as possible without user intervention.

Question 47

Managed access points should ________.

A)allow access point power to be adjusted remotely
B)provide constant transmission quality monitoring
C)Both A and B
D)Neither A nor B

Question 48

Bluetooth offers very high transmission speeds.

Question 49

The normal maximum distance for Bluetooth propagation is ________.

A)10 meters
B)30 meters
C)50 meters
D)100 meters

Question 50

________ uses access points.

A)802.11
B)Bluetooth
C)Both A and B
D)Neither A nor B

Question 51

Which of the following was created for PANs?

A)802.11.
B)Bluetooth.
C)Both A and B
D)Neither A nor B

Question 52

Bluetooth offers a rated speed today of about ________.

A)3 Mbps
B)11 Mbps
C)22 Mbps
D)54 Mbps
E)100 Mbps

Question 53

Centralized access point management ________.

A)increases management costs but provides better control
B)reduces management costs

Question 54

Bluetooth uses ________.

A)access points
B)peer-to-peer connections between devices
C)Both A and B
D)Neither A nor B

Question 55

Which of the following can be used to centrally manage remote access points?

A)Smart access points.
B)WLAN switches.
C)Both A and B
D)Neither A nor B

Question 56

Which of the following gives longer battery life?

A)Bluetooth.
B)802.11.

Question 57

Initial WLAN planning begins with drawing circles on building architecture drawings.

Question 58

Bluetooth is designed to transmit ________.

A)at high speeds
B)over long distances
C)Both A and B
D)Neither A nor B

Question 59

Bluetooth is for ________.

A)large WLANs
B)cable replacement
C)Both A and B
D)Neither A nor B

Question 60

Bluetooth is used for cable replacement.

Question 61

In cellular technology,a cellsite is a small geographical area.

Question 62

If I use Channel3 in a cell,I can reuse that same channel in an adjacent cell with traditional cellular technology.

Question 63

What technology could replace universal product code (bar code)tags on products?

A)802.11.
B)Bluetooth.
C)UWB.
D)RFIDs.

Question 64

________ is an approach for implementing multiple radio technologies in a single device at reduced cost.

A)UWB
B)ZigBee
C)Software defined radio
D)Agile radio
E)Bluetooth

Question 65

Wireless WANs tend to have faster speeds than Wireless LANs.

Question 66

Which of the following tends to have faster speeds?

A)Wireless LANs.
B)Wireless WANs.
C)They generally have about the same speed.

Question 67

An MTSO ________.

A)controls cellsites in a cellular system
B)links mobile users to wired telephone customers
C)Both A and B
D)Neither A nor B

Question 68

Which of the following uses application profiles?

A)802.11a.
B)802.11g.
C)All 802.11 networks.
D)Bluetooth.
E)All of the above.

Question 69

________ normally is limited to about 10 meters.

A)Bluetooth
B)802.11
C)Both A and B
D)Neither A nor B

Question 70

Cellular technology provides channel reuse,in different cells in the network.

Question 71

Application profiles are attractive because they allow devices to work with one another automatically at the application layer.

Question 72

If a pair of Bluetooth devices switch to 802.11 radio transmission,they can transmit at tens of megabits per second.

Question 73

If I use Channel3 in a cell,I can reuse that same channel in an adjacent cell with ________.

A)traditional cellular technology
B)CDMA
C)Both A and B
D)Neither A nor B

Question 74

Most wireless WANs operate in a single metropolitan area.

Question 75

Bluetooth is faster than ZigBee.

Question 76

A ________ serves a city and its suburbs.

A)MAN
B)PAN
C)Both A and B
D)Neither A nor B

Question 77

Cells are used in cellular telephony to provide ________.

A)service for more customers
B)greater reliability
C)greater speed
D)reduced latency
E)All of the above.

Question 78

802.11 is faster than UWB.

Question 79

If I use Channel3 in a cell,I can reuse that same channel in an adjacent cell with CDMA cellular technology.

Question 80

In cellular technology,a ________ is a small geographical area.

A)cell
B)cellsite
C)Both A and B
D)Neither A nor B