WGU Course C839 - Intro to Cryptography ACTUAL EXAM REVIEW
EXAM 2025/2026 BANK ACTUAL EXAM WITH FREQUENTLY
TESTED QUESTIONS AND STUDY GUIDE / EXPERT VERIFIED
FOR GUARANTEED PASS/ALREADY GRADED A+
What type of encryption uses different keys to encrypt and decrypt the message?
A Symmetric
B Private key
C Secure
D Asymmetric
Ans>> D
QuizThe most widely used asymmetric encryption algorithm is what?
A RSA
B Vigenere
,C DES
D Caesar Cipher
Ans>> A
QuizOriginal, unencrypted information is referred to as ____.
A text
B plaintext
C cleantext
D ciphertext
Ans>> B
QuizWhich of the following is NOT an asymmetric system?
A PGP
B RSA
C SSL
D DES
Ans>> D
,QuizIn 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
Ans>> C
QuizThe 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
Ans>> B
QuizWhich 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
Ans>> D
QuizA _____ 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
Ans>> B
QuizWhich 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
EXAM 2025/2026 BANK ACTUAL EXAM WITH FREQUENTLY
TESTED QUESTIONS AND STUDY GUIDE / EXPERT VERIFIED
FOR GUARANTEED PASS/ALREADY GRADED A+
What type of encryption uses different keys to encrypt and decrypt the message?
A Symmetric
B Private key
C Secure
D Asymmetric
Ans>> D
QuizThe most widely used asymmetric encryption algorithm is what?
A RSA
B Vigenere
,C DES
D Caesar Cipher
Ans>> A
QuizOriginal, unencrypted information is referred to as ____.
A text
B plaintext
C cleantext
D ciphertext
Ans>> B
QuizWhich of the following is NOT an asymmetric system?
A PGP
B RSA
C SSL
D DES
Ans>> D
,QuizIn 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
Ans>> C
QuizThe 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
Ans>> B
QuizWhich 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
Ans>> D
QuizA _____ 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
Ans>> B
QuizWhich 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
