WGU Course C839 Intro to Cryptography
Quizlet by Brian MacFarlane- WGU Exam
Study Guide – Complete Questions with
Correct Detailed Answers | Latest Updated
Version
Prepare effectively for your Western Governors University (WGU) exams with this
comprehensive and well-organized study guide. This resource contains complete exam
questions with correct and detailed answers, designed to help students understand key
concepts and successfully prepare for their WGU assessments.
WGU courses follow a competency-based learning model, meaning students must
demonstrate a strong understanding of course objectives before passing their assessments.
This study guide helps simplify the process by providing structured questions and accurate
explanations that reinforce important topics and improve exam readiness.
What This Study Guide Includes
✔ Complete exam questions covering key WGU course competencies
✔ Correct answers with clear and detailed explanations
✔ Organized format for quick and effective revision
✔ Coverage of commonly tested concepts in WGU assessments
✔ Latest updated version for reliable exam preparation
Why This Study Guide Is Helpful
This resource is designed to help students review faster, understand concepts more clearly,
and build confidence before taking WGU Objective Assessments (OA). Practicing with
structured questions and reviewing detailed answers helps strengthen knowledge and
improve test-taking skills.
, Ideal For
• WGU Objective Assessment (OA) preparation
• Midterm and final exam review
• Self-paced study and revision
• Practicing exam-style questions
• Strengthening understanding of course competencies
A valuable study resource designed to support WGU students in preparing effectively and
performing confidently in their exams.
What type of encryption uses different keys to encrypt and decrypt the message?
A Symmetric
B Private key
C Secure
D Asymmetric -answer D
The most widely used asymmetric encryption algorithm is what?
A RSA
B Vigenere
C DES
D Caesar Cipher -answer A
Original, unencrypted information is referred to as ____.
,A text
B plaintext
C cleantext
D ciphertext -answer B
Which of the following is NOT an asymmetric system?
A PGP
B RSA
C SSL
D DES -answer D
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
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
, 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
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
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
A _________ is a digital representation of information that identifies you as a relevant entity by
a trusted third party?
Quizlet by Brian MacFarlane- WGU Exam
Study Guide – Complete Questions with
Correct Detailed Answers | Latest Updated
Version
Prepare effectively for your Western Governors University (WGU) exams with this
comprehensive and well-organized study guide. This resource contains complete exam
questions with correct and detailed answers, designed to help students understand key
concepts and successfully prepare for their WGU assessments.
WGU courses follow a competency-based learning model, meaning students must
demonstrate a strong understanding of course objectives before passing their assessments.
This study guide helps simplify the process by providing structured questions and accurate
explanations that reinforce important topics and improve exam readiness.
What This Study Guide Includes
✔ Complete exam questions covering key WGU course competencies
✔ Correct answers with clear and detailed explanations
✔ Organized format for quick and effective revision
✔ Coverage of commonly tested concepts in WGU assessments
✔ Latest updated version for reliable exam preparation
Why This Study Guide Is Helpful
This resource is designed to help students review faster, understand concepts more clearly,
and build confidence before taking WGU Objective Assessments (OA). Practicing with
structured questions and reviewing detailed answers helps strengthen knowledge and
improve test-taking skills.
, Ideal For
• WGU Objective Assessment (OA) preparation
• Midterm and final exam review
• Self-paced study and revision
• Practicing exam-style questions
• Strengthening understanding of course competencies
A valuable study resource designed to support WGU students in preparing effectively and
performing confidently in their exams.
What type of encryption uses different keys to encrypt and decrypt the message?
A Symmetric
B Private key
C Secure
D Asymmetric -answer D
The most widely used asymmetric encryption algorithm is what?
A RSA
B Vigenere
C DES
D Caesar Cipher -answer A
Original, unencrypted information is referred to as ____.
,A text
B plaintext
C cleantext
D ciphertext -answer B
Which of the following is NOT an asymmetric system?
A PGP
B RSA
C SSL
D DES -answer D
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
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
, 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
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
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
A _________ is a digital representation of information that identifies you as a relevant entity by
a trusted third party?
