.png){kind=logo}
D 334 / D334 Pre-Assessment (Latest Update 2026 / 2027) Introduction to Cryptography | Study Questions & Answers | 100% Correct | Grade A - WGU
Question:
Which encryption mode always produces the same result for the same plaintext?
A. CBC
B. ECB
C. CFB
D. CTR
Answer:
ECB
- / 4
Question:
Which information protection method has an 80-bit key and operates on 64- bit data blocks?
- Skipjack
B. IDEA
C. DES
- Twofish
Answer:
Skipjack
Question:
How many transformation rounds does AES use with a 192-bit key?
- 10
- 12
- 14
- 16
Answer:
12
- / 4
Question:
How many transformation rounds does AES use with a 128-bit key?
- 10
- 12
- 14
- 16
Answer:
10
Question:
Which encryption algorithm did the National Institute of Standards and Technology (NIST) designate as a specification for the encryption of electronic information?
A. IDEA
B. DES
C. 3DES
D. AES
Answer:
AES
- / 4
Question:
Which attack tries every combination of letters, numbers, and special characters?
- Rainbow table
- Birthday
- Dictionary
- Brute-force
Answer:
Brute-force
Question:
How does a dictionary attack break a cipher?
- Factors the prime numbers used within an RSA algorithm
- Looks for rollover of the same value for an IV
- Takes a list of the most common words and tries each entry
- Matches hash values back to the original plaintext
Answer:
Takes a list of the most common words and tries each entry
- / 4
.png)