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HMAC SHA-1 produces a hash of length-
A. 180 bits
B. 240 bits
C. 160 bits
D. 40 bits
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In the IEEE 802.11i PRF, a nonce is generated by the following expression – nonce = PRF (Random Number, “InitCounter”, MAC || Time, Len) What is the value of the ‘Len’ (desirable number of pseudorandom bits)?
A. 64
B. 128
C. 256
D. 512
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Nonce = PRF (Random Number, “InitCounter”, MAC || Time, Len) What is the Key ‘K’ in the above expression?
A. Initcounter
B. Random number
C. Prf
D. Time
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What is ‘Len’ (desirable number of pseudorandom bits) field in the case of CCMP PTK computation?
A. 256
B. 384
C. 568
D. 298
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The message input to the IEEE 802.11 pseudorandom Function consists of 4 items concatenated together. Which of the following option is not a part of this message input –
A. The parameter b
B. A byte with value ff (11111111)
C. The parameter a
D. Counter value i
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A __________ is a secret key shared by the AP and a STA and installed in some fashion outside the scope of IEEE 802.11i.
A. Pre-shared key
B. Pairwise transient key
C. Master session key
D. Key conformation key
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The Pairwise master key (PMK) can be derived from either PSK or MSK.
A. True
B. False
C.
D.
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The pairwise transient key (PTK) is derived from –
A. Key confirmation key (kck)
B. Temporal key (tk)
C. Pairwise master key (pmk)
D. Pre-shared key (psk)
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The pairwise transient key (PTK) consists of ______________ keys.
A. 3
B. 4
C. 5
D. 2
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Word of the Day
20 Jun
Urgency
importance requiring swift action.
فوری ضرورت، سخت اہمیت

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