WGU C839 OA EXAM WITH ACCURATE
QUESTIONS AND ANSWERS (VERIFIED
ANSWERS) | LATEST (2026/2027)
UPDATED VERSION |
100% GUARANTEED PASS
{JUST RELEASED}
1. What type of encryption uses different keys to encrypt and decrypt the
message?
A Symmetric
B Private key
C Secure
D Asymmetric - ANSWER ✓ D
2. The most widely used asymmetric encryption algorithm is what?
A RSA
B Vigenere
, C DES
D Caesar Cipher - ANSWER ✓ A
3. Original, unencrypted information is referred to as ____.
A text
B plaintext
C cleantext
D ciphertext - ANSWER ✓ B
4. Which of the following is NOT an asymmetric system?
A PGP
B RSA
C SSL
D DES - ANSWER ✓ D
5. In order for User A to send User B an encrypted message that only User B can
read, User A must encrypt message with which of the following keys?
A User A's public key
, B User A's private key
C User B's public key
D User B's private key - ANSWER ✓ C
6. The greatest weakness with symmetric algorithms is _____.
A They are less secure than asymmetric
B The problem of key exchange
C They are slower than asymmetric
D The problem of generating keys - ANSWER ✓ B
7. Which of the following is generally true about block sizes?
A Smaller block sizes increase security
B Block sizes must be more than 256 bits to be secure
C Block size is irrelevant to security
D Larger block sizes increase security - ANSWER ✓ D
8. A _____ is a function that takes a variable-size input m and returns a fixed-
size string.
, A Symmetric cipher
B Hash
C Asymmetric cipher
D Feistel - ANSWER ✓ B
9. Which of the following is a cryptographic protocol that allows two parties to
establish a shared key over an insecure channel?
A Elliptic Curve
B RSA
C MD5
D Diffie-Hellman - ANSWER ✓ D
10. A _________ is a digital representation of information that identifies you as
a relevant entity by a trusted third party?
A Digital Signature
B Hash
C Ownership stamp
D Digest - ANSWER ✓ A
QUESTIONS AND ANSWERS (VERIFIED
ANSWERS) | LATEST (2026/2027)
UPDATED VERSION |
100% GUARANTEED PASS
{JUST RELEASED}
1. What type of encryption uses different keys to encrypt and decrypt the
message?
A Symmetric
B Private key
C Secure
D Asymmetric - ANSWER ✓ D
2. The most widely used asymmetric encryption algorithm is what?
A RSA
B Vigenere
, C DES
D Caesar Cipher - ANSWER ✓ A
3. Original, unencrypted information is referred to as ____.
A text
B plaintext
C cleantext
D ciphertext - ANSWER ✓ B
4. Which of the following is NOT an asymmetric system?
A PGP
B RSA
C SSL
D DES - ANSWER ✓ D
5. In order for User A to send User B an encrypted message that only User B can
read, User A must encrypt message with which of the following keys?
A User A's public key
, B User A's private key
C User B's public key
D User B's private key - ANSWER ✓ C
6. The greatest weakness with symmetric algorithms is _____.
A They are less secure than asymmetric
B The problem of key exchange
C They are slower than asymmetric
D The problem of generating keys - ANSWER ✓ B
7. Which of the following is generally true about block sizes?
A Smaller block sizes increase security
B Block sizes must be more than 256 bits to be secure
C Block size is irrelevant to security
D Larger block sizes increase security - ANSWER ✓ D
8. A _____ is a function that takes a variable-size input m and returns a fixed-
size string.
, A Symmetric cipher
B Hash
C Asymmetric cipher
D Feistel - ANSWER ✓ B
9. Which of the following is a cryptographic protocol that allows two parties to
establish a shared key over an insecure channel?
A Elliptic Curve
B RSA
C MD5
D Diffie-Hellman - ANSWER ✓ D
10. A _________ is a digital representation of information that identifies you as
a relevant entity by a trusted third party?
A Digital Signature
B Hash
C Ownership stamp
D Digest - ANSWER ✓ A
