This is the networking questions and answers section on "Cryptography" with explanation for various interview, competitive examination and entrance test. Solved examples with detailed answer description, explanation are given and it would be easy to understand.
1. In cryptography, what is cipher?
- A. algorithm for performing encryption and decryption
- B. encrypted message
- C. both (a) and (b)
- D. none of the mentioned
Answer: Option A
Explanation:
None.
2. In asymmetric key cryptography, the private key is kept by:
- A. sender
- B. receiver
- C. sender and receiver
- D. all the connected devices to the network
Answer: Option B
Explanation:
None.
3. Which one of the following algorithm is not used in asymmetric-key cryptography?
- A. RSA algorithm
- B. diffie-hellman algorithm
- C. electronic code book algorithm
- D. none of the mentioned
Answer: Option C
Explanation:
None.
4. In cryptography, the order of the letters in a message is rearranged by:
- A. transpositional ciphers
- B. substitution ciphers
- C. both (a) and (b)
- D. none of the mentioned
Answer: Option A
Explanation:
None.
5. What is data encryption standard (DES)?
- A. block cipher
- B. stream cipher
- C. bit cipher
- D. none of the mentioned
Answer: Option A
Explanation:
None.
