WGU Introduction-to-Cryptography real exam prep : WGU Introduction to Cryptography HNO1

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WGU Introduction-to-Cryptography Exam Syllabus Topics:

WGU Introduction to Cryptography HNO1 Sample Questions:

1. (Which symmetric encryption technique uses a 112-bit key size and a 64-bit block size?)

A) 3DES
B) IDEA
C) DES
D) AES

2. (What does nonrepudiation aim to achieve in the context of cryptography?)

A) Preventing unauthorized access to sensitive data
B) Holding parties accountable for their actions and transactions
C) Ensuring the confidentiality of encrypted messages
D) Verifying the identity of the sender in secure communication

3. (What describes how Counter (CTR) mode encryption functions?)

A) Uses an IV to encrypt the first block, then uses the result of the encryption to encrypt the next block
B) Uses a self-synchronizing stream cipher where the IV is encrypted and XORed with the data stream one bit at a time
C) Encrypts each block with the same key, where each block is independent of the others
D) Converts the block cipher into a stream cipher, then uses a counter value and a nonce to encrypt the data

4. (Which number of bits gets encrypted each time encryption is applied during stream encryption?)

A) 192
B) 40
C) 1
D) 256

5. (What is the purpose of code-signing in current systems?)

A) To generate random numbers for encryption
B) To compress data for efficient storage
C) To authenticate users during data transmission
D) To verify the integrity and authenticity of software

Solutions: