CSCU Encryption and Cryptography 3

Question 1

What is full disk encryption (FDE)?

Accepted Answer

Encrypting all data on a storage drive, including the OS and user files

Answer

Full disk encryption encrypts the entire contents of a storage device, protecting all data including the operating system from unauthorized access.

Question 2

What is PGP (Pretty Good Privacy) primarily used for?

Accepted Answer

Encrypting and digitally signing emails and files

Answer

PGP provides cryptographic privacy and authentication for data communication, most commonly used to encrypt and sign email messages and files.

Question 3

What is the key difference between encoding and encryption?

Accepted Answer

Encoding is reversible without a key; encryption requires a secret key to reverse

Answer

Encoding transforms data using a publicly known scheme with no secret key required to reverse it, while encryption requires a secret key to decrypt.

Question 4

What is a man-in-the-middle (MitM) attack in the context of encryption?

Accepted Answer

An attack where an attacker secretly intercepts and possibly alters communications between two parties

Answer

In a MitM attack, an attacker secretly positions themselves between two communicating parties to intercept, read, or alter their encrypted communications.

Question 5

Which of the following is a best practice for encryption key management?

Accepted Answer

Storing keys separately from encrypted data and rotating them regularly

Answer

Proper key management requires storing keys separately from the data they protect and rotating them periodically to minimize the impact of a potential compromise.

CSCU - Certified Secure Computer User Practice Test

CSCU - Certified Secure Computer User Practice Test

CSCU Encryption and Cryptography 3