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WGU C839V5/D334 PASSED EXAM
QUESTIONS AND CORREC T
ANSWERS
Question :The hash value in bits for MD5 is ____.
A. 128
B. 160
C. 256
Correct answer:128
Question :Hashing involves taking a _____ length input
and producing a _____ length output (message digest).
- fixed; fixed
- variable; fixed
- fixed; variable
Correct answer:variable; fixed
Question :The hash value in bits for SHA-1 is ____.
A. 128
B. 160
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C. 256
Correct answer:160
Question :The hash value in bits for MD4 is ____.
A. 128
B. 160
C. 256
Correct answer:128
Question :IPSec ______ mode involves "end-to-end"
encryption; i.e. data remains encrypted from the time it leaves a sender's device to the time it arrives at the receiver's device.
- Tunnel
- Transport
- Trusted
Correct answer:Transport
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Question :IPSec ______ mode involves encryption from
gateway to gateway, i.e. just through the public network space.
- Tunnel
- Transport
- Trusted
Correct answer:Tunnel
Question :Remember, with tunnel mode, encryption does
not happen until just before it leaves the local network.Traffic likely remains unencrypted between the end user device and the local network boundary.A security analyst on a local network using monitoring tools is likely to only be able to read contents of traffic encrypted using IPSec ______ mode.
- Tunnel
- Transport
- Trusted
Correct answer:Tunnel
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Question :_____ is a lightweight cryptography method for
signing messages (MAC). It boasts a relatively undemanding hardware implementation (only ~3,333 gates required at 1MHz clock rate) making it suitable for IoT implementation.
Correct answer:Chaskey
Question :Chaskey has a key size of _____ bits.
A. 256
B. 128
- 80
Correct answer:128
Question :A weakness of one-way hashing is that the
same piece of plaintext will result in the same ciphertext unless _____ is applied.
- Salt
- Ash
- Ether