ICTICT532 - Understanding Encryption: A Quiz

What is the primary purpose of encryption?

• To speed up the data transfer over the internet

• To transform readable data into an unreadable format

• To increase the storage space on devices

• To make data transmission slower for security reasons

Answer explanation

Encryption's primary purpose is to transform readable data into an unreadable format for security reasons.

Which of the following is a well-known symmetric encryption algorithm?

• ECC

• RSA

• AES

• SHA-256

Answer explanation

AES is a well-known symmetric encryption algorithm, making it the correct choice among the options provided.

What does the process of hashing ensure in data security?

• Data availability

• Data confidentiality

• Data integrity

• Data redundancy

Answer explanation

Hashing ensures data integrity in data security by verifying that the data has not been altered or tampered with.

Which of the following is NOT a use case for encryption?

• Encrypting data for faster internet speeds

• Storing passwords securely

• Verifying the integrity of software downloads

• Securing online transactions

Answer explanation

Encrypting data for faster internet speeds is NOT a use case for encryption as it does not relate to data security or privacy.

What is the role of a private key in asymmetric encryption?

• It generates hash values for data integrity

• It is used to decrypt data that was encrypted with the matching public key

• It is publicly shared to encrypt data

• It is used to encrypt data that anyone can decrypt

Answer explanation

The private key is used to decrypt data that was encrypted with the matching public key in asymmetric encryption.