WEB WOC Ostomy Care EXAM REVIEW EXAM 2025/2026 BANK ACTUAL EXAM WITH FREQUENTLY TESTED QUESTIONS AND STUDY GUIDE / EXPERT VERIFIED FOR GUARANTEED PASS/ALREADY GRADED A+

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