# Cryptography Solved MCQs Questions Answers

Let us see the important solved MCQs of Cryptography.

1.Which one is DES?

a) Block cipher
b) Bit cipher
c) Stream clipher
d) None of the above

Ans:

a

2. Encryption system is?

a) Symmetric key encryption algorithm
b) not an encryption algorithm
c) Asymmetric key encryption algorithm
d) None of the above
Ans:

a

3. Which one is not a RC5 operation?
a) RC5-CipherText Stealing
b) RC5-Cipher Block Chaining
d) RC5 block cipher

Ans:

c

4. An asymmetric-key cipher uses
a)1 Key
b)2 Key
c)3 Key
d)4 Key
Ans:

b

5.Which one of the following protocol is used to secure HTTP connection?

a) Resource reservation protocol
b) Transport layer security (TSL)
d) Stream control transmission protocol (SCTP)

Ans:

b

6.Cryptography term is used to transforming messages to make them secure and to prevent from
a) Change
b) Defend
c) Idle
d) Attacks
Ans:

d

7. Shift cipher is also referred to as the
a)Caesar cipher
b)cipher text
c)Shift cipher
d)None of the above
Ans:

a

8. Which one is the Heart of Data Encryption Standard (DES)?

a)DES function
b)Encryption
c)Rounds
d)Cipher

Ans:

a

9. DES stands forâ€¦â€¦â€¦â€¦â€¦â€¦â€¦

a)Data Encryption Slots

b) Data Encryption Subscription

c)Data Encryption Standard

d)Data Encryption Solutions

Ans:

c

10. Encryption algorithm is used to transforms plaintext intoâ€¦â€¦â€¦â€¦â€¦â€¦â€¦â€¦â€¦.

a)Simple Text
b)Cipher Text
c)Empty Text
d) None of the above

Ans:

d

11. What is cipher in Cryptography ?
a) Algorithm for performing encryption

b) Algorithm for performing decryption
c) Encrpted Messages

d) Both algorithm for performing encryption and Decryption and encrypted message

Ans:

d

12.Which clipher is used for providing voice privacy in GSM cellular telephone protocol
a) b5/4 cipher

b) A5/2 cipher

c) b5/6 cipher

d) b5/8 cipher

Ans:

b

13. The message before being transformed, is
a)Simple Text
b)Cipher Text
c)Empty Text
d) plain text
Ans: