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WGU Introduction to Cryptography HNO1 Sample Questions:

1. (An organization wants to digitally sign its software to guarantee the integrity of its source code. Which key should the customer use to decrypt the digest of the source code?)

A) Organization's private key
B) Organization's public key
C) Customer's public key
D) Customer's private key

2. (A security analyst uses a polyalphabetic substitution cipher with a keyword of YELLOW to encrypt a message. Which cipher should be used to encrypt the message?)

A) Vigenere
B) Playfair
C) Pigpen
D) Caesar

3. (What are the primary characteristics of Bitcoin proof of work?)

A) Easy to produce and difficult to verify
B) Difficult to produce and difficult to verify
C) Difficult to produce and easy to verify
D) Easy to produce and easy to verify

4. (What is an attribute of RC4 when used with WEP?)

A) 128-bit key
B) 40-bit key
C) 256-bit key
D) 512-bit key

5. (What is the length of the Initialization Vector (IV) in WEP?)

A) 48 bits
B) 24 bits
C) 56 bits
D) 40 bits

Solutions: