Encryption and Security Quiz

What is the main purpose of encryption?

• To speed up data transmission

• To protect data from unauthorized access

• To compress files

• To improve internet connection

Which of the following is a symmetric encryption method?

• RSA

• Vigenère cipher

• Digital signatures

• SSL/TLS

In symmetric encryption, the same key is used for:

• Encryption only

• Decryption only

• Both encryption and decryption

• Authentication

Which statement is true about asymmetric encryption?

• It uses the same key for both encryption and decryption

• It uses two keys: a public key and a private key

• It is always faster than symmetric encryption

• It does not require a key at all

In RSA encryption, which key is shared with everyone?

• Secret key

• Public key

• Private key

• Session key

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

• To encrypt data

• To open the encrypted data

• To generate random numbers

• To verify internet speed

Which protocol replaces SSL and is more secure?

• TLS

• HTTP

• FTP

• IP

Which protocol is often used to create secure VPNs at the network layer?

• SSL

• IPsec

• HTTP

• SMTP

Which is an advantage of asymmetric encryption compared to symmetric?

• Faster performance

• Secure key distribution

• Requires no keys at all

• Less computational cost

Case study: Alice wants to send Bob a secret message using RSA. Which key should she use to encrypt the message?

• Her own private key

• Bob’s public key

• Bob’s private key

• Eve’s public key