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WGU C839 OBJECTIVE ASSESSMENT 2 LATEST VERSIONS (VERSION A & B) /WGU C839 INTRODUCTION TO CRYPTOGRAPHY OA ACTUAL EXAM Latest Update $12.49   Add to cart

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WGU C839 OBJECTIVE ASSESSMENT 2 LATEST VERSIONS (VERSION A & B) /WGU C839 INTRODUCTION TO CRYPTOGRAPHY OA ACTUAL EXAM Latest Update

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Which encryption standard uses the same key to encrypt and decrypt messages? Symmetric Which algorithm is designated as a Type 2 product by the National Security Agency (NSA)? Skipjack What is the most commonly used format for certificates? X.509 v3 What is referenced to determine if a cer...

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  • November 15, 2024
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WGU C839 OBJECTIVE ASSESSMENT 2
LATEST VERSIONS (VERSION A & B)
2023-2024 /WGU C839 INTRODUCTION
TO CRYPTOGRAPHY OA ACTUAL EXAM
Latest Update
Which encryption standard uses the same key to encrypt and decrypt messages?

✓ Symmetric



Which algorithm is designated as a Type 2 product by the National Security Agency (NSA)?

✓ Skipjack



What is the most commonly used format for certificates?

✓ X.509 v3



What is referenced to determine if a certificate has been revoked?

✓ Certificate revocation list (CRL)



What needs to be installed on end users' computers to allow them to trust applications that

have been digitally signed by the developer?

✓ Sender's public key



Which type of certificate must be certified by an authority to verify it with other participants?



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✓ Public Certificate



What is an attribute of the Rivest Cipher 4 (RC4) algorithm?

✓ It requires a unique nonce.



Which mode generates the key stream with a nonce and incrementing value?

✓ Counter (CTR)



Which mode is a stream algorithm that concatenates an incrementing value with a nonce?

✓ Counter (CTR)



Which key would an administrator use to encrypt data so only the CEO can decrypt it?

✓ CEO's public key



What is the result of a hash function?

✓ Digest



What is used to efficiently encrypt large files?

✓ Symmetric encryption



An administrator needs to encrypt the following word with the Atbash cipher: security What is

the correct ciphertext?




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✓ hvxfirgb



Which cryptographic algorithm has a 128-bit hash size?

✓ Message Digest Algorithm 5 (MD5)



Which characteristic makes a hashing function suitable for use in signature schemes?

✓ Collision resistance



Which attribute of a hashing function makes a birthday attack possible?

✓ Partial-message collision



Which hash algorithm produces a 160-bit output value?

✓ SHA-1



What does cipher block chaining (CBC) use with the key to encrypt subsequent blocks of

plaintext?

✓ Previous generated ciphertext



Which mode produces the same ciphertext from two identical plaintext blocks?

✓ Electronic codebook (ECB)



Which encryption mode is least secure?




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