Introduction to Computing MCQs with Answers
Practice important Introduction to Computing MCQs with answers and explanations.
Multiple Choice Questions
Q1201: What is the primary purpose of encryption in network security?
- A: To speed up data transmission
- B: To hide the origin of data
- C: To protect data confidentiality
- D: To reduce data size
View Answer
C
Q1202: Which encryption algorithm is widely known for being symmetric?
- A: RSA
- B: AES
- C: ECC
- D: DSA
View Answer
B
Q1203: In asymmetric encryption, what is used to decrypt the data?
- A: Private key
- B: Public key
- C: Hash
- D: Plaintext
View Answer
A
Q1204: What type of encryption uses the same key for both encryption and decryption?
- A: Asymmetric
- B: Symmetric
- C: Public-key
- D: Hashing
View Answer
B
Q1205: Which of the following is an example of asymmetric encryption?
- A: DES
- B: AES
- C: RSA
- D: SHA-256
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C
Q1206: What does the term "plaintext" refer to in encryption?
- A: Encrypted data
- B: Compressed data
- C: Unencrypted data
- D: Encoded data
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C
Q1207: Which key size is typically stronger in encryption algorithms?
- A: 128-bit
- B: 64-bit
- C: 256-bit
- D: 512-bit
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D
Q1208: What is the main advantage of using asymmetric encryption over symmetric encryption?
- A: Faster processing
- B: Simpler implementation
- C: Stronger security
- D: Easier key management
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C
Q1209: In encryption, what is a "cipher"?
- A: The original message
- B: The encrypted message
- C: The key used for encryption
- D: The algorithm used to encrypt data
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D
Q1210: Which encryption method is most suitable for encrypting large amounts of data?
- A: Asymmetric
- B: Symmetric
- C: Public-key
- D: Hashing
View Answer
B