WGU D334 (Exam Code
HNO1) Pre - Assessment
Exam Review Intro to
Cryptography Questions and
Answers | 100% Pass
Guaranteed | Graded A+ |
D334 (Exam Code HNO1)
Intro to Cryptography WGU
Assessment D334
Introduction to Cryptography
WGU Western
,
,SECTION 1: FOUNDATIONAL CONCEPTS (Questions 1-15)
Question 1
What is encryption in its simplest terms?
• ,,,ANSWER,,,: Changing plaintext into ciphertext
Rationale: Encryption is the process of converting readable data (plaintext) into an
unreadable format (ciphertext) to protect confidentiality during transmission or
storage .
Question 2
What is decryption?
• ,,,ANSWER,,,: The process of converting ciphertext back into plaintext
Rationale: Decryption is the reverse process of encryption, transforming
scrambled data back into its original readable form using the appropriate key .
Question 3
What is a mono-alphabetic cipher?
• ,,,ANSWER,,,: A single mapping from our alphabet to a cipher alphabet
, Rationale: Mono-alphabetic substitution involves creating a fixed mapping where
each plaintext letter consistently maps to the same ciphertext letter throughout the
message. Many early cryptosystems used this approach .
Question 4
What is a polyalphabetic cipher?
• ,,,ANSWER,,,: Mapping of our alphabet to multiple cipher alphabets
Rationale: Polyalphabetic ciphers use multiple substitution alphabets, changing
the mapping based on position or keyword. This added complexity made early
cryptosystems more difficult to crack .
Question 5
Which cipher is considered unbreakable?
• ,,,ANSWER,,,: One-time pad
Rationale: The one-time pad is theoretically unbreakable because each cipher
code mapping is used only once. However, it requires generating a new pad for
each message, making it impractical for many applications .
Question 6
HNO1) Pre - Assessment
Exam Review Intro to
Cryptography Questions and
Answers | 100% Pass
Guaranteed | Graded A+ |
D334 (Exam Code HNO1)
Intro to Cryptography WGU
Assessment D334
Introduction to Cryptography
WGU Western
,
,SECTION 1: FOUNDATIONAL CONCEPTS (Questions 1-15)
Question 1
What is encryption in its simplest terms?
• ,,,ANSWER,,,: Changing plaintext into ciphertext
Rationale: Encryption is the process of converting readable data (plaintext) into an
unreadable format (ciphertext) to protect confidentiality during transmission or
storage .
Question 2
What is decryption?
• ,,,ANSWER,,,: The process of converting ciphertext back into plaintext
Rationale: Decryption is the reverse process of encryption, transforming
scrambled data back into its original readable form using the appropriate key .
Question 3
What is a mono-alphabetic cipher?
• ,,,ANSWER,,,: A single mapping from our alphabet to a cipher alphabet
, Rationale: Mono-alphabetic substitution involves creating a fixed mapping where
each plaintext letter consistently maps to the same ciphertext letter throughout the
message. Many early cryptosystems used this approach .
Question 4
What is a polyalphabetic cipher?
• ,,,ANSWER,,,: Mapping of our alphabet to multiple cipher alphabets
Rationale: Polyalphabetic ciphers use multiple substitution alphabets, changing
the mapping based on position or keyword. This added complexity made early
cryptosystems more difficult to crack .
Question 5
Which cipher is considered unbreakable?
• ,,,ANSWER,,,: One-time pad
Rationale: The one-time pad is theoretically unbreakable because each cipher
code mapping is used only once. However, it requires generating a new pad for
each message, making it impractical for many applications .
Question 6
