Deck 7: Wireless Lans 2

Question 1

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

A)evil twin access point
B)rogue access point

Answer 1

B

Question 2

802.11i is attractive compared with WPA because ________.

A)802.11i offers stronger security
B)802.11i offers quality of service
C)802.11i was standardized by the Wi-Fi Alli
D)all of the above

Answer 2

A

Question 3

Who created WPA?

A)the Internet Engineering Task Force
B)the 802.1 Working Group
C)the 802.11 Working Group
D)the Wi-Fi Alliance

Answer 3

D

Question 4

802.11i uses WEP as its encryption method.

Question 5

802.11i and WPA2 are different names for the same standard.

Question 6

WPA ________.

A)has not been cracked at all
B)has been partially cracked
C)has been fully cracked but the crack is difficult
D)has been fully cracked and the crack only takes minutes

Question 7

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

Question 8

WEP is a strong core security protocol.

Question 9

What security protocol originally came with 802.11 equipment?

A)802.11i
B)WEP
C)both A and B
D)neither A nor B

Question 10

802.11i uses ________ as its encryption method.

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

Question 11

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)WEP cannot be cracked with readily available software.

Question 12

802.11i offers stronger security than WPA.

Question 13

What is the strongest security protocol for 802.11 today?

A)802.11i
B)802.11s
C)802.11X
D)WPA

Question 14

What does the Wi-Fi Alliance call 802.11i?

A)802.1X
B)802.11X
C)WPA
D)WPA2

Question 15

Breaking into WLANs is ________.

A)drive-by hacking
B)war driving

Question 16

What security protocol originally came with 802.11 equipment?

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

Question 17

Which offers stronger security?

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

Question 18

WPA was created by the the 802.11 Working Group.

Question 19

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

A)drive-by hacking
B)war driving

Question 20

A rogue access point is an unauthorized access point.

Question 21

WPS is applicable to ________.

A)802.1X mode
B)preshared key mode
C)PEAP
D)IPsec

Question 22

Which of the following is usually set up by a hacker outside the building?

A)a rogue access point
B)an evil twin access point
C)both A and B
D)neither A nor B

Question 23

Which of the following has a dangerous vulnerability that is causing problems today?

A)PEAP
B)802.11i
C)WPA
D)WPS

Question 24

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

Question 25

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

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

Question 26

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

A)evil twin access point
B)rogue access point

Question 27

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 28

PSK mode automatically prevents the use of weak keys.

Question 29

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

Question 30

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)16

Question 31

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

Question 32

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 33

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 34

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

Question 35

A denial-of-service attack against a wireless network can be implemented by ________.

A)flooding the network with traffic
B)sending disassociate commands to clients
C)both A and B
D)neither A nor B

Question 36

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

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

Question 37

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)all of the above

Question 38

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

Question 39

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

A)802.1X mode
B)PSK mode
C)both A and B
D)neither A nor B

Question 40

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

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

Question 41

An 8/1 increase in power corresponds to approximately ________ decibels.

A)3
B)6
C)20
D)none of the above

Question 42

Centralized access point management ________.

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

Question 43

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 44

Which of the following was created for PANs?

A)802.11
B)Bluetooth
C)both A and B
D)neither A nor B

Question 45

Which of the following can use access points?

A)802.11
B)Bluetooth
C)both A and B
D)neither A nor B

Question 46

Which form of Bluetooth has a typical transmission speed of about 200 kbps?

A)Classic Bluetooth
B)High-Speed Bluetooth
C)Low-Energy Bluetooth
D)none of the above

Question 47

1 Watt represents a dBm value of about ________.

A)10
B)20
C)30
D)We cannot say because only one power is given.

Question 48

Centralized access point management raises management costs.

Question 49

Bluetooth is for ________.

A)large WLANs
B)cable replacement
C)both A and B
D)neither A nor B

Question 50

At the beginning of a telephone call placed through a Bluetooth headset with the Hands-Free Profile,which device is initially the master?

A)the Bluetooth phone
B)the Bluetooth headset
C)Both are simultaneously masters and slaves.

Question 51

A 100/1 increase in power corresponds to approximately ________ decibels.

A)6
B)10
C)20
D)none of the above

Question 52

Bluetooth is standardized by the ________.

A)802.11 Working Group
B)Wi-Fi Alliance
C)Bluetooth Special Interest Group
D)none of the above

Question 53

Which form of Bluetooth has a typical transmission speed of about 3 Mbps?

A)Classic Bluetooth
B)High-Speed Bluetooth
C)Low-Energy Bluetooth
D)none of the above

Question 54

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 55

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 56

In Bluetooth,a master may have multiple slaves.

Question 57

2 mW represents a dBm value of about ________.

A)2
B)3
C)20
D)We cannot say because only one power is given.

Question 58

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 59

An 8/1 decrease in power corresponds to approximately ________ decibels.

A)3
B)6
C)9
D)none of the above

Question 60

Which form of Bluetooth has a typical transmission speed of about 24 Mbps?

A)Classic Bluetooth
B)High-Speed Bluetooth
C)Low-Energy Bluetooth
D)none of the above

Question 61

Two devices exchange information about the profiles they support during ________.

A)peering
B)bonding
C)both A and B
D)neither A nor B

Question 62

In which frequency band can NFC operate?

A)2)4 GHz
B)5 GHz
C)both A and B
D)neither A nor B

Question 63

Near-field communication has a maximum transmission distance of about ________.

A)400 cm / 200 in
B)40 cm / 20 in
C)4 cm / 2 in
D)The devices must be physically touching.

Question 64

In Bluetooth,a master can have up to ________ slaves at any moment.

A)1
B)3
C)12
D)none of the above

Question 65

Which Bluetooth profile would a tablet use with a Bluetooth keyboard?

A)Bluetooth input profile
B)Bluetooth I/O profile
C)human interface device profile
D)none of the above

Question 66

A typical speed for NFC is about ________.

A)2 kbps
B)200 kbp
C)2 Mbps
D)200 Mbps

Question 67

UWB channels are wider than a full service band.

Question 68

A mobile phone may communicate with a headset using the Bluetooth ________ profile.

A)hands-free
B)headset
C)both A and B
D)neither A nor B

Question 69

Hackers cannot eavesdrop on near-field communication transmissions unless they are almost right next to the device.

Question 70

Passive RFID chips are powered by ________.

A)a battery
B)the sun
C)body temperature
D)the signal sent by the device querying the RFID chip

Question 71

Bluetooth uses the ________ service band.

A)2)4 GHz
B)5 GHz
C)both A and B
D)neither A nor B

Question 72

Classic Bluetooth uses ________.

A)OFDM
B)Frequency Hopping Spread Spectrum
C)both A and B
D)neither A nor B

Question 73

Two Bluetooth devices will peer ________.

A)the first time they connect
B)every time they connect
C)never
D)after they have first bonded

Question 74

A mobile phone will communicate with more functionality with a headset if it uses the Bluetooth ________.

A)hands-free profile
B)headset profile
C)Both have about equal functionality.

Question 75

Compared to 802.11,UWB has greater ________.

A)speed
B)transmission distance
C)reliability
D)all of the above