WGU D488 OA BOARD EVALUATION 2026
GUARANTEED PASS ANSWERS GRADED A+
● AES. Answer: 128 Bit Block - 128, 192, 256 Bit Key - 10, 12, 14
Rounds
● BlowFish. Answer: 64 Bit Block - 32 thru 448 Bit Key - 16 Rounds
● TwoFish. Answer: 128 Bit Block - 1 thru 256 Bit Key - 16 Rounds
● Serpent. Answer: 128 Bit Block 128, 192, 256 Bit Key - 32 Rounds
● SkipJack. Answer: 64 Bit Block - 80 Bit Key - 32 Rounds
● IDEA. Answer: 64 Bit Block - 128 Bit Key - 8.5 Rounds
● Symmetric Block Ciphers. Answer: DES - AES - BlowFish - TwoFish
- Serpent - SkipJack - IDEA
● Symmetric Block Ciphers with 64 Bit Block Size. Answer: DES -
BlowFish - SkipJack - IDEA
, ● Symmetric Block Ciphers with 128 Bit Block Size. Answer: AES -
TwoFish - Serpent
● Symmetric Block Ciphers with 128, 192, 256 Bit Key Size. Answer:
AES - Serpent
● Symmetric Block Ciphers with 16 Rounds. Answer: DES - BlowFish
- TwoFish
● Symmetric Block Ciphers with 32 Rounds. Answer: Serpent -
SkipJack
● RC4. Answer: 1 thru 2048 Bit Key Size & 1 Round (40 bit minimum
recommended)
● FISH. Answer: Uses Lagged Fibonacci pseudorandom number
generator
● PIKE. Answer: Revised version of FISH to address known plaintext
attack vulnerabilities
● Symmetric Stream Ciphers. Answer: RC4 - Fish - Pike
GUARANTEED PASS ANSWERS GRADED A+
● AES. Answer: 128 Bit Block - 128, 192, 256 Bit Key - 10, 12, 14
Rounds
● BlowFish. Answer: 64 Bit Block - 32 thru 448 Bit Key - 16 Rounds
● TwoFish. Answer: 128 Bit Block - 1 thru 256 Bit Key - 16 Rounds
● Serpent. Answer: 128 Bit Block 128, 192, 256 Bit Key - 32 Rounds
● SkipJack. Answer: 64 Bit Block - 80 Bit Key - 32 Rounds
● IDEA. Answer: 64 Bit Block - 128 Bit Key - 8.5 Rounds
● Symmetric Block Ciphers. Answer: DES - AES - BlowFish - TwoFish
- Serpent - SkipJack - IDEA
● Symmetric Block Ciphers with 64 Bit Block Size. Answer: DES -
BlowFish - SkipJack - IDEA
, ● Symmetric Block Ciphers with 128 Bit Block Size. Answer: AES -
TwoFish - Serpent
● Symmetric Block Ciphers with 128, 192, 256 Bit Key Size. Answer:
AES - Serpent
● Symmetric Block Ciphers with 16 Rounds. Answer: DES - BlowFish
- TwoFish
● Symmetric Block Ciphers with 32 Rounds. Answer: Serpent -
SkipJack
● RC4. Answer: 1 thru 2048 Bit Key Size & 1 Round (40 bit minimum
recommended)
● FISH. Answer: Uses Lagged Fibonacci pseudorandom number
generator
● PIKE. Answer: Revised version of FISH to address known plaintext
attack vulnerabilities
● Symmetric Stream Ciphers. Answer: RC4 - Fish - Pike