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: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]a[/su_spoiler]
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: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]a[/su_spoiler]
3. Which one is not a RC5 operation?
a) RC5-CipherText Stealing
b) RC5-Cipher Block Chaining
c) RC5-Cipher Padding
d) RC5 block cipher
Ans: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]c[/su_spoiler]
4. An asymmetric-key cipher uses
a)1 Key
b)2 Key
c)3 Key
d)4 Key
Ans: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]b[/su_spoiler]
5.Which one of the following protocol is used to secure HTTP connection?
a) Resource reservation protocol
b) Transport layer security (TSL)
c) Xplicit congestion notification (ECN)
d) Stream control transmission protocol (SCTP)
Ans: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]b[/su_spoiler]
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: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]d[/su_spoiler]
7. Shift cipher is also referred to as the
a)Caesar cipher
b)cipher text
c)Shift cipher
d)None of the above
Ans: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]a[/su_spoiler]
8. Which one is the Heart of Data Encryption Standard (DES)?
a)DES function
b)Encryption
c)Rounds
d)Cipher
Ans: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]a[/su_spoiler]
9. DES stands for…………………
a)Data Encryption Slots
b) Data Encryption Subscription
c)Data Encryption Standard
d)Data Encryption Solutions
Ans: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]c[/su_spoiler]
10. Encryption algorithm is used to transforms plaintext into……………………….
a)Simple Text
b)Cipher Text
c)Empty Text
d) None of the above
Ans: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]d[/su_spoiler]
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: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]d[/su_spoiler]
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: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]b[/su_spoiler]
13. The message before being transformed, is
a)Simple Text
b)Cipher Text
c)Empty Text
d) plain text
Ans: [su_spoiler title=”Answer – Click Here:” class=”padding: -10px;”]d[/su_spoiler]