Chapter 7 test 2 – Flashcards
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1) In the TJX breach, attackers first got into the network through ________. A) spear phishing B) an inside conspirator C) the use of weak wireless encryption D) all of the above
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C
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2) Wireless LAN standards come from ________. A) OSI B) TCP/IP C) both A and B D) neither A nor B
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A
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3) To drive around a city looking for working access points that are unprotected is ________. A) drive-by hacking B) war driving
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B
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4) Breaking into WLANs from outside the premises is ________. A) drive-by hacking B) war driving
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A
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5) 802.11i provides ________. A) confidentiality B) message integrity C) both A and B D) neither A nor B
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C
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6) In 802.11i, protection is provided between the client and the ________. A) access point B) switch C) router D) server
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A
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7) Which 802 working group created 802.11i? A) 802.1 B) 802.3 C) 802.11 D) It was not an 802 working group. It was the Wi-Fi Alliance
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C
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8) Which offers stronger security? A) WPA B) 802.11i C) Both A and B offer equally strong security.
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B
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9) What is the strongest security protocol for 802.11 today? A) 802.11i B) 802.11s C) 802.11X D) WPA
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A
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10) 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
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A
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11) 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
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B
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12) After authentication in 80.11i PSK mode, a wireless client communicates with the access point via a(n) ________ key. A) VPN B) session C) 802.1X D) preshared
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B
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13) After two wireless clients authenticate themselves via PSK to an access point, they will use ________ to communicate with the access point. A) the preshared key B) an 802.1X key C) WPS keys D) different session keys
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D
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14) For post-authentication communication with an access point, the client in 802.11i PSK mode will ________ for subsequent communication. A) always use the same preshared key each time it is connected B) always use the same session key each time it is connected C) both A and B D) neither A nor B
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D
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15) Session keys are used to ________. A) make cryptanalysis more difficult B) improve authentication C) both A and B D) neither A nor B
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A
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16) Which of the following is a risk in 802.11i PSK mode? A) WPS can easily be cracked if it is used. B) Unauthorized sharing of the pre-shared key. C) A weak passphrase may be selected. D) all of the above
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D
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17) In 802.11i PSK mode, the pass phrase should be at least ________ characters long. A) 8 B) 12 C) 20 D) 128
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C
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18) Part of WPS weakness is caused by ________. A) 802.1X mode B) WPA2 preshared key mode C) dividing the 8 digit PIN into two 4 digit halves D) IPsec
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C
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19) Which of the following has a dangerous vulnerability that is causing problems today? A) PEAP B) 802.11i C) WPA D) WPS
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D
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20) If a firm has many access points, it should use ________ mode in 802.11i. A) PSK B) 802.1X C) IPsec D) PEAP
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B
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21) The Wi-Fi Alliance calls 802.1X mode ________ mode. A) enterprise B) personal C) WEP D) WPA
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A
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22) In ________, the authenticator is the ________. A) 802.1X, wireless access point B) 802.11i, switch C) 802.11i, wireless access point D) 802.1X, central authentication server
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C
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23) 802.1X requires security between the supplicant and the authenticator in ________. A) Ethernet B) 802.11 C) both A and B D) neither A nor B
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B
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24) An unauthorized internal access point is a(n) ________ access point. A) evil twin B) rogue C) shadow D) counterfeit
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B
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25) A rogue access point is created by ________. A) an employee B) an external attacker C) the IT security department D) an evil twin
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A
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26) A rogue access point ________. A) is an unauthorized internal access point B) often has very poor security C) often operates at high power D) All of the above are true.
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D
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27) A notebook computer configured to act like a real access point is a(n) ________. A) evil twin access point B) rogue access point
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A
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28) 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
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B
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29) 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
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B
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30) 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) 802.1X mode
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B
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31) 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.
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C
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32) Centralized access point management ________. A) increases management costs but provides better control B) reduces management costs
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B
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33) 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
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C
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34) 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
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C
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35) Which is the correct formula for decibels? A) 10 * P2/P1 B) 10 * (P2/P1)2 C) Log10(P2/P1) D) none of the above
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D
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36) An 8/1 increase in power corresponds to approximately ________ decibels. A) 3 B) 6 C) 20 D) none of the above
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D
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37) A power ratio of 8/1 decrease in power corresponds to approximately ________ decibels. A) 3 B) 6 C) 9 D) none of the above
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C
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38) A 100/1 increase in power corresponds to approximately ________ decibels. A) 6 B) 10 C) 20 D) none of the above
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C
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39) 1 Watt represents a dBm value of about ________. A) 10 B) 20 C) 30 D) We cannot say because only one power is given.
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C
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40) A radio that has a power of 8 mW represents a ratio of about ________ dBm. A) 2 B) 8 C) 9 D) 10
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C
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41) I wish to have a wireless LAN to serve my house. I will use ________. A) 802.11 B) Bluetooth C) either A or B
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A
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42) Bluetooth is for ________. A) large WLANs B) cable replacement C) both A and B D) neither A nor B
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B
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43) Which of the following was created for PANs? A) 802.11 B) Bluetooth C) both A and B D) neither A nor B
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B
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44) Bluetooth is standardized by the ________. A) 802.11 Working Group B) Wi-Fi Alliance C) Bluetooth Special Interest Group D) none of the above
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C
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45) Which form of Bluetooth has a typical transmission speed of less than 3 Mbps? A) classic Bluetooth B) high-speed Bluetooth C) personal Bluetooth D) none of the above
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A
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46) Which form of Bluetooth has a typical transmission speed of about 24 Mbps? A) classic Bluetooth B) high-speed Bluetooth C) enterprise Bluetooth D) none of the above
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B
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47) Which of the following can use access points? A) 802.11 B) Bluetooth C) both A and B D) neither A nor B
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A
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48) In Bluetooth, a master can have up to ________ slaves at any moment. A) 1 B) 3 C) 12 D) none of the above
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D
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49) 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.
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B
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50) Which Bluetooth profile would a desktop use with a Bluetooth keyboard? A) Bluetooth input profile B) Bluetooth I/O profile C) human interface device profile D) none of the above
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C
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51) 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.
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C
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52) In which frequency band does NFC operate? A) 2.4 GHz B) 5 GHz C) both A and B D) neither A nor B
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D
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53) Passive RFID chips are powered by ________. A) a battery B) the sun C) body temperature D) none of the above
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D
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54) Passive RFID chips are powered by ________. A) a battery B) the sun C) body temperature D) the scanning unit
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D
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55) Which of the following uses an access point? A) traditional Wi-Fi B) Wi-Fi Direct C) both A and B D) neither A nor B
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A