CSCU Encryption and Cryptography

Question 1

What is the primary purpose of encryption?

Accepted Answer

To convert readable data into an unreadable format to protect it

Answer

To compress data for faster transmission

Answer

To delete sensitive data after use

Answer

To organize files in a structured manner

Question 2

Which type of encryption uses the same key for both encryption and decryption?

Accepted Answer

Symmetric encryption

Answer

Asymmetric encryption

Answer

Public-key encryption

Answer

Hashing

Question 3

In asymmetric encryption, which key is used to encrypt data that only the recipient can decrypt?

Accepted Answer

Public key

Answer

Private key

Answer

Session key

Answer

Secret key

Question 4

What does HTTPS indicate about a website connection?

Accepted Answer

The connection between your browser and the website is encrypted

Answer

The website has been verified by the government

Answer

The website uses HTTP with no encryption

Answer

The website is guaranteed to be free of malware

Question 5

What is a cipher in the context of cryptography?

Accepted Answer

An algorithm used to encrypt and decrypt data

Answer

A type of computer virus

Answer

A hardware device for storing passwords

Answer

A type of firewall rule

Question 6

What is the primary purpose of a digital certificate?

Accepted Answer

To prove the identity of a website or person in digital communications

Answer

To store encrypted files on a server

Answer

To block access to malicious websites

Answer

To generate strong passwords automatically

Question 7

Which of the following best describes an encryption 'key'?

Accepted Answer

A piece of information that controls how data is encrypted or decrypted

Answer

A physical device used to unlock encrypted hardware

Answer

A password used only to access a network

Answer

A type of antivirus signature file