WGU C839v5/D334 Additional Practice ACTUAL EXAM
2026/2026 PREP QUESTIONS COMPLETE ACCURATE EXAM
APPROVED QUESTIONS AND CORRECT VERIFIED
SOLUTIONS WITH DETAILED RATIONALES (100%
CORRECT VERIFIED ANSWERS) LATEST UPDATED
VERSION 2026 EDIT
ANSWERS: Data Encryption Standard (DES)
_____ has a block size of 64 bits, key size of 56 bits, and 16 rounds of
substitution & transposition.
A. DES
B. AES
C. RC4
ANSWERS: rainbow table
A(n) _____ is a collection of precomputed hash values of actual plaintext
passwords used for password cracking.
A. initialization vector
B. key pair
C. rainbow table
ANSWERS: cer
_____ is a common x.509 certificate file type that is used with both PEM
and DER formats.
A. .crt
B. .cer
C. .der
,ANSWERS: Triple Data Encryption Standard (3DES)
_____ has a block size of 64 bits, key size of 112 bits, and 48 rounds of
substitution & transposition.
A. DES
B. RSA
C. 3DES
ANSWERS: 128, 192, 256
Key sizes used with the Advanced Encryption Standard (AES) include
_____. _____, or ___ _.
A. 10, 12, 14
B. 128, 192, 256
C. 32, 64, 80
ANSWERS: 128
The Advanced Encryption Standard (AES) operates using ____bit blocks.
A. 128
B. 192
C. 256
ANSWERS: 80
Skipjack is a symmetric block cipher that uses a_____ bit key.
A. 64
B. 80
C. 112
,ANSWERS: 128-bit key size; 64-bit IV
Enocoro operates with a key size of ______ bits and an initialization vector
(IV) of ____ bits.
A. 80; 80
B. 128; 64
C. 80; 64
ANSWERS: 64
Skipjack has a block size of ___ bits.
A. 64
B. 80
C. 128
ANSWERS: Light-weight hashing algorithms
PHOTON, SPONGENT, Lesamnta-LW, and Quark are examples of light-
weight __ _.
A. hashing algorithms
B. public-key algorithms
C. symmetric block ciphers
ANSWERS: IDEA
_____ has a block size of 64 bits, key size of 128 bits, and >17 rounds of
substitution & transposition.
A. RSA
B. DSA
C. IDEA
, ANSWERS: RSA
_______ is a partially homomorphic crypto system that leverages prime
number characteristics, operates with a 1024-4096 bit variable key size,
and 1 round.
A. RSA
B. Diffie-Hellman
C. Chaskey
ANSWERS: Symmetric Block
Blowfish and Twofish are both _____ ciphers with common key sizes of 128,
192, or 256 bits.
A. symmetric block
B. symmetric stream
C. asymmetric
2026/2026 PREP QUESTIONS COMPLETE ACCURATE EXAM
APPROVED QUESTIONS AND CORRECT VERIFIED
SOLUTIONS WITH DETAILED RATIONALES (100%
CORRECT VERIFIED ANSWERS) LATEST UPDATED
VERSION 2026 EDIT
ANSWERS: Data Encryption Standard (DES)
_____ has a block size of 64 bits, key size of 56 bits, and 16 rounds of
substitution & transposition.
A. DES
B. AES
C. RC4
ANSWERS: rainbow table
A(n) _____ is a collection of precomputed hash values of actual plaintext
passwords used for password cracking.
A. initialization vector
B. key pair
C. rainbow table
ANSWERS: cer
_____ is a common x.509 certificate file type that is used with both PEM
and DER formats.
A. .crt
B. .cer
C. .der
,ANSWERS: Triple Data Encryption Standard (3DES)
_____ has a block size of 64 bits, key size of 112 bits, and 48 rounds of
substitution & transposition.
A. DES
B. RSA
C. 3DES
ANSWERS: 128, 192, 256
Key sizes used with the Advanced Encryption Standard (AES) include
_____. _____, or ___ _.
A. 10, 12, 14
B. 128, 192, 256
C. 32, 64, 80
ANSWERS: 128
The Advanced Encryption Standard (AES) operates using ____bit blocks.
A. 128
B. 192
C. 256
ANSWERS: 80
Skipjack is a symmetric block cipher that uses a_____ bit key.
A. 64
B. 80
C. 112
,ANSWERS: 128-bit key size; 64-bit IV
Enocoro operates with a key size of ______ bits and an initialization vector
(IV) of ____ bits.
A. 80; 80
B. 128; 64
C. 80; 64
ANSWERS: 64
Skipjack has a block size of ___ bits.
A. 64
B. 80
C. 128
ANSWERS: Light-weight hashing algorithms
PHOTON, SPONGENT, Lesamnta-LW, and Quark are examples of light-
weight __ _.
A. hashing algorithms
B. public-key algorithms
C. symmetric block ciphers
ANSWERS: IDEA
_____ has a block size of 64 bits, key size of 128 bits, and >17 rounds of
substitution & transposition.
A. RSA
B. DSA
C. IDEA
, ANSWERS: RSA
_______ is a partially homomorphic crypto system that leverages prime
number characteristics, operates with a 1024-4096 bit variable key size,
and 1 round.
A. RSA
B. Diffie-Hellman
C. Chaskey
ANSWERS: Symmetric Block
Blowfish and Twofish are both _____ ciphers with common key sizes of 128,
192, or 256 bits.
A. symmetric block
B. symmetric stream
C. asymmetric
