Error Detection and Encryption Quiz

What is the purpose of parity bits in error detection?

• To increase data size

• To identify and correct errors

• To ensure even or odd number of 1s in a byte

• To encrypt data

Which of the following is an example of an error detection method?

• Parity check

• Symmetric encryption

• Asymmetric encryption

• Data compression

What does CRC stand for in error detection?

• Cyclic Redundancy Code

• Code Redundancy Check

• Critical Redundancy Check

• Cyclic Redundancy Check

Which encryption method uses the same key for both encryption and decryption?

• Symmetric encryption

• Asymmetric encryption

• Public key encryption

• Hashing

Which type of encryption uses a public and private key pair?

• Symmetric encryption

• Asymmetric encryption

• Hashing

• Substitution cipher

Symmetric encryption requires both parties to share a _______.

In error detection, _______ adds extra bits to data to check for errors during transmission.

Which of the following are features of asymmetric encryption?

• Uses two keys

• Slower than symmetric encryption

• More secure for public communications

• Requires less computational power than symmetric encryption

In asymmetric encryption, the _______ key is used for encryption

How does ARQ (Automatic Repeat reQuest) handle errors in data transmission?

• By correcting the errors automatically

• By discarding the data

• By requesting retransmission of corrupted data

• By ignoring errors