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

Encrypting only the operating system files on a drive

Answer

Encrypting data only when it is transferred over a network

Answer

Encrypting only specific folders selected by the user

Question 2

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

Accepted Answer

Encrypting and digitally signing emails and files

Answer

Scanning email attachments for viruses

Answer

Managing network firewall rules and policies

Answer

Creating and storing strong passwords

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 uses much longer keys than encryption

Answer

Encryption requires a network connection but encoding does not

Answer

Encoding is always more secure than encryption

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

An attack where a hacker installs malware on both endpoints in a network

Answer

An attack that cracks encryption by trying all possible key combinations

Answer

An attack that floods a server with encrypted traffic to cause a denial of service

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

Storing keys in the same location as the encrypted data

Answer

Sharing keys via unencrypted email for ease of access

Answer

Using the same encryption key for all data indefinitely

Question 6

What does it mean when a browser warns that a website's certificate is 'expired'?

Accepted Answer

The digital certificate used to establish a secure connection is no longer valid

Answer

The website has been compromised by hackers

Answer

The website's encryption algorithm is outdated and no longer secure

Answer

The website has permanently moved to a new server address

Question 7

Which type of attack attempts to break encryption by systematically trying every possible key combination?

Accepted Answer

Brute force attack

Answer

Phishing attack

Answer

SQL injection attack

Answer

Social engineering attack