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WGU C839/WGU D334 CRYPTOGRAPHY PRE
ASSESMENT AND OBJECTIVE ASSESMENT 2025/
2026 CURRENTLY TESTING EXAM COMPLETE 500
QUESTIONS WITH DETAILED VERIFIED ANSWERS
WITH RATIONALES (100% CORRECT ANSWERS)
/ALREADY GRADED A+||LATEST EXAM!!||
Which encryption standard uses the same key to encrypt
and decrypt messages? - Answer-Symmetric Key
Encryption
Which algorithm is designated as a Type 2 product by the
National Security Agency (NSA)? - Answer-SKIPJACK
What is the most commonly used format for certificates? -
Answer-X.509 v3 *Version 3*
What is referenced to determine if a certificate has been
revoked? - Answer-Certificate Revocation List *(CRL)*
What needs to be installed on *end users' computers* to
allow them to *trust* applications that have been *digitally
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signed* by the developer? - Answer-Sender's public key
*(DEVELOPER's)*
Which type of certificate *must be certified by an authority*
to verify it with other participants? - Answer-Public
Certificate
What is an attribute of the Rivest Cipher 4 (RC4)
algorithm? - Answer-It requires a unique nonce. *(# used
ONCE)*
Which mode generates the key stream with a nonce and
incrementing value? - Answer-Counter (CTR)
*Generates the next keystream block* by encrypting
successive *values* of a "counter"
Which mode is a stream algorithm that concatenates an
incrementing value with a nonce? - Answer-Counter (CTR)
Which key would an administrator use to encrypt data so
*only the CEO can decrypt it?* - Answer-CEO's public key
WGU C839/WGU D334 CRYPTOGRAPHY PRE
ASSESMENT AND OBJECTIVE ASSESMENT 2025/
2026 CURRENTLY TESTING EXAM COMPLETE 500
QUESTIONS WITH DETAILED VERIFIED ANSWERS
WITH RATIONALES (100% CORRECT ANSWERS)
/ALREADY GRADED A+||LATEST EXAM!!||
Which encryption standard uses the same key to encrypt
and decrypt messages? - Answer-Symmetric Key
Encryption
Which algorithm is designated as a Type 2 product by the
National Security Agency (NSA)? - Answer-SKIPJACK
What is the most commonly used format for certificates? -
Answer-X.509 v3 *Version 3*
What is referenced to determine if a certificate has been
revoked? - Answer-Certificate Revocation List *(CRL)*
What needs to be installed on *end users' computers* to
allow them to *trust* applications that have been *digitally
, 2|Page
signed* by the developer? - Answer-Sender's public key
*(DEVELOPER's)*
Which type of certificate *must be certified by an authority*
to verify it with other participants? - Answer-Public
Certificate
What is an attribute of the Rivest Cipher 4 (RC4)
algorithm? - Answer-It requires a unique nonce. *(# used
ONCE)*
Which mode generates the key stream with a nonce and
incrementing value? - Answer-Counter (CTR)
*Generates the next keystream block* by encrypting
successive *values* of a "counter"
Which mode is a stream algorithm that concatenates an
incrementing value with a nonce? - Answer-Counter (CTR)
Which key would an administrator use to encrypt data so
*only the CEO can decrypt it?* - Answer-CEO's public key
