Exam (elaborations)

WGU - D334 Revision Exam Questions And All Correct Answers.

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Course
WGU D334

Institution
WGU D334

Electronic Code Book (ECB) - Answer Block 1 encrypted = Cipher 1, Block 2 encrypted = Cipher 2 Cipher Block Chaining (CBC) - Answer IV XOR Block 1 = Cipher text 1, Cipher Text 1 XOR Block 2 = Cipher text 2. Cipher Feedback (CFB) - Answer IV encrypted XOR Block 1 = Cipher 1, Cipher 1 ...

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Uploaded on August 23, 2024
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Institution WGU D334
Course WGU D334

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WGU - D334 Revision Exam Questions
And All Correct Answers.
Electronic Code Book (ECB) - Answer Block 1 encrypted = Cipher 1, Block 2 encrypted = Cipher 2

Cipher Block Chaining (CBC) - Answer IV XOR Block 1 = Cipher text 1, Cipher Text 1 XOR Block 2 = Cipher
text 2.

Cipher Feedback (CFB) - Answer IV encrypted XOR Block 1 = Cipher 1, Cipher 1 XOR Block 2 = Cipher 2

Output Feedback (OFB) - Answer IV encrypted XOR Block 1 = Cipher 1, Cipher 1 encrypted XOR Block 2
= Cipher 2

Counter Mode (CTR) - Answer Nonce encrypted XOR Block 1 = Cipher 1, Nonce +1 encrypted XOR block
2 = Cipher 2

Rainbow Table - Answer A table of hash values and their corresponding plaintext values that can be
used to look up password values if an attacker is able to steal a system's encrypted password file.

HMAC - Answer a fixed length string of bits similar to other hashing algorithms such as MD5 and SHA-1,
but it also uses a secret key to add some randomness to the result.

Pigpen Cipher - Answer a geometric simple substitution cipher, which exchanges letters for symbols
which are fragments of a grid

Rail Code - Answer scrambles text by writing it across rows and columns

bifid cipher - Answer maps letters in a grid to numeric values

Playfair Cipher - Answer Uses a 5x5 table and a key word. Rest of the alphabet is placed on table in
alphabetic order, skipping letters used in the keyword. You break up the message into two character

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