Introduction to Computing MCQs with Answers
Practice important Introduction to Computing MCQs with answers and explanations.
Multiple Choice Questions
Q1211: What does RSA stand for in the context of encryption?
- A: Random Symmetric Algorithm
- B: Rivest-Shamir-Adleman
- C: Robust Security Algorithm
- D: Reliable Secure Authentication
View Answer
B
Q1212: What is the role of a digital certificate in encryption?
- A: To encrypt the data
- B: To verify the identity of the sender
- C: To compress data
- D: To generate keys
View Answer
B
Q1213: Which hashing algorithm is commonly used in digital signatures?
- A: RSA
- B: AES
- C: SHA-256
- D: DES
View Answer
C
Q1214: What is "hashing" in the context of cryptography?
- A: A process to decrypt data
- B: A process to compress data
- C: A process to verify data integrity
- D: A process to encrypt data
View Answer
C
Q1215: Which of the following is a disadvantage of symmetric encryption?
- A: Requires more processing power
- B: Requires multiple keys
- C: Less secure key management
- D: Slower than asymmetric encryption
View Answer
C
Q1216: What is the purpose of a public key in asymmetric encryption?
- A: To encrypt data
- B: To decrypt data
- C: To generate a digital signature
- D: To compress data
View Answer
A
Q1217: How does symmetric encryption differ from asymmetric encryption?
- A: Uses two keys for encryption
- B: Uses the same key for encryption and decryption
- C: Is slower than asymmetric encryption
- D: Provides better security than asymmetric encryption
View Answer
B
Q1218: Which algorithm is known for its use in secure web communications (e.g., HTTPS)?
- A: AES
- B: RSA
- C: DES
- D: Blowfish
View Answer
B
Q1219: What is the term for converting ciphertext back into plaintext?
- A: Encrypting
- B: Hashing
- C: Decrypting
- D: Compressing
View Answer
C
Q1220: Which of the following is true about a digital signature?
- A: It encrypts the message
- B: It verifies the sender's identity
- C: It compresses the message
- D: It replaces the public key
View Answer
B