Fundamentals of Encryption Review

What is encryption?

• A process of converting audio into text

• A process of converting images into videos

• A process of converting unreadable text into plain format

• A process of converting plain text into unreadable format

What type of attack does encryption help prevent by securing data and communication?

• Phishing attacks

• Eavesdropping attacks

• Social engineering attacks

• Malware attacks

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

• Asymmetric encryption

• Private key encryption

• Symmetric encryption

• Public key encryption

What is the earliest known type of systematic encryption?

• Cesar Cipher

• RSA

• Elliptic Curve Cryptography

• Advanced Encryption Standard

What encryption standard is considered secure due to the large number of possible keys and complex mathematical operations required for each bit of the key?

• RSA

• AES-128

• DES

• 3DES

What type of encryption is typically used for encrypting large amounts of data due to its better performance and faster speed?

• Symmetric encryption

• Asymmetric encryption

• Public key encryption

• Private key encryption

Which encryption technique uses a public key for encryption and a private key for decryption?

• Symmetric encryption

• Asymmetric encryption

• Public key encryption

• Private key encryption

What is the process of trying to 'unlock' the encrypted message without using the key?

• Brute force

• Key exchange

• Decryption

• Encryption

Which of the following uses a public key to encrypt and a private key to decrypt messages?

• Symmetric Key Encryption

• Private Key Encryption

• Public Key Encryption

• Multifactor Authentication

What is the purpose of using a combination of both symmetric and asymmetric encryption in practice?

• To slow down the encryption process

• To complicate the encryption process

• To achieve a secure and efficient encryption system

• To reduce the security of the encryption system