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WGU D334 OA AND PRE- ASSESSMENT EXAM NEWEST
2025 TEST BANK| D334 INTRODUCTION TO
CRYPTOGRAPHY FINAL EXAM REVIEW WITH 250 REAL
EXAM QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (BRAND NEW!!)
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
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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
WGU D334 OA AND PRE- ASSESSMENT EXAM NEWEST
2025 TEST BANK| D334 INTRODUCTION TO
CRYPTOGRAPHY FINAL EXAM REVIEW WITH 250 REAL
EXAM QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (BRAND NEW!!)
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
, Page 2 of 8
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
