Unit 17 Encryption and Security Quiz

What is the purpose of encryption?

• To enhance data visualization

• To prevent data interception

• To increase data transmission speed

• To compress data size

What is the main security concern related to data transmission?

• Interoperability

• Availability

• Confidentiality

• Scalability

What is the original data being sent known as?

What is the product when plaintext is put through an encryption algorithm?

What is the encryption method that uses the same secret key to encrypt and decrypt the encoded message?

• Quantum cryptography

• Asymmetric encryption

• Symmetric encryption

• Block cipher

What is the security issue inherent in symmetric encryption arising from the risk of the key being intercepted by an eavesdropper/hacker?

• Eavesdropper

• Stream cipher

• Block chaining

• Key distribution problem

What type of encryption uses two keys - a public key and a private key?

• Block cipher

• Symmetric encryption

• Quantum cryptography

• Asymmetric encryption

What is the need to identify who sent the data and verify that the source is legitimate?

• Confidentiality

• Authenticity

• Integrity

• Non-repudiation

What is the encryption of a number of contiguous bits in one go rather than one bit at a time?

• Symmetric encryption

• Stream cipher

• Eavesdropper

• Block cipher

What is the form of encryption in which the previous block of ciphertext is XORed with the block of plaintext and then encrypted?