OLD Unit 4 Test

What is the main purpose of cryptographic encryption?

• To increase data storage capacity

• To prevent unauthorized access to information

• To speed up data transmission

• To simplify network protocols

Which encryption method uses a single key for both encryption and decryption?

• Asymmetric encryption

• Symmetric encryption

• Hybrid encryption

• Certificate-based encryption

Which encryption type involves encrypting an entire storage device?

• File encryption

• Volume encryption

• Full-disk encryption

• Partial encryption

What is the role of key exchange in encryption?

• To increase the encryption speed

• To securely transmit cryptographic keys between parties

• To replace old encryption algorithms

• To store cryptographic keys

What element of encryption typically measured in bits influences security effectiveness?

• Ciphertext

• Key length

• Algorithms

• Plaintext

Which of the following is NOT an encryption algorithm?

• AES

• RSA

• DES

• PHP

Which encryption type uses a public and private key pair?

• Symmetric encryption

• Asymmetric encryption

• Block encryption

• Stream encryption

What does AES stand for?

• Advanced Encoding Standard

• Advanced Encryption Standard

What does DES stand for?

• Data Encoding Standard

• Data Encryption System

• Digital Encryption Standard

• Digital Encoding System

What is the purpose of database encryption?

• To encrypt entire disk volumes

• To secure data within a database

• To encode multimedia files

• To protect network communications