MCQ 1 In an asymmetric key cipher, both the receivers uses _____________.

(A) private key (B) public key (C) Either A or B (D) Neither A nor B

MCQ 2 Which of the following is not an example of presentation layer issues?

(A) Weak or non-existent authentication mechanisms (B) Unintentional or ill-directed use of superficially supplied input (C) Cryptographic flaws in the system may get exploited to evade privacy (D) Poor handling of unexpected input can lead to the execution of arbitrary instructions

MCQ 3 Using the following values of a character M = 5, p = 3, q = 11 & d = 7, Find the the value of cipher text C by RSA Algorithm.

(A) 16 (B) 21 (C) 26 (D) 31

MCQ 4 A cryptosystem is also termed as ______________.

(A) secure system (B) cipher system (C) cipher-text (D) secure algorithm

MCQ 5 A _______________ network is used inside an organisation.

(A) private (B) public (C) semi-private (D) semi-public

MCQ 6 Encryption and Decryption is the responsibility of __________________ Layer.

(A) Application (B) Datalink (C) Network (D) Physical

MCQ 7 The Advanced Encryption Standard (AES), has three different configurations with respect to the number of rounds and _________________.

(A) Data Size (B) Round Size (C) Encryption Size (D) key Size

MCQ 8 ________________ is a cipher formed out of substitution where for a given key-value the cipher alphabet for every plain text remains fixed all through the encryption procedure.

(A) Polyalphabetic Cipher (B) Playfair Cipher (C) Monoalphabetic Cipher (D) Caesar Cipher

MCQ 9 Cryptographic algorithms are based on mathematical algorithms where these algorithms use _____________ for a secure transformation of data.

(A) secret key (B) external programs (C) add-ons (D) secondary key

MCQ 10 _______________ is the art & science of cracking the cipher-text without knowing the key.

(A) Cracking (B) Cryptanalysis (C) Cryptography (D) Crypto-hacking

MCQ 11 _______________ provide security at the transport layer.

(A) SSL (B) TLS (C) Either A or B (D) Both A and B

MCQ 12 Which 2 protocols are used in the Transport layer of the TCP/IP model?

(A) UDP and HTTP (B) ICMP and HTTP (C) HTTP and TCP (D) TCP and UDP

MCQ 13 An _____________ is a network that allows and authorised access from outside users of the whole world.

(A) extranets (B) internets (C) intranets (D) None of the above

MCQ 14 Which of the following is not a vulnerability of the application layer?

(A) Application design bugs may bypass security controls (B) Inadequate security controls force “all-or-nothing” approach (C) Inadequate security controls force “all-or-nothing” approach (D) Inadequate security controls force “all-or-nothing” approach

MCQ 15 Data Encryption Standard is an example of a _____________ cryptosystem.

(A) conventional (B) public key (C) hash key (D) asymmetric-key

MCQ 16 In __________________ 2 different keys are implemented for encrypting as well as decrypting that particular information.

(A) Symmetric Key Encryption (B) Asymmetric Key Encryption (C) Asymmetric Key Decryption (D) Hash-based Key Encryption

MCQ 17 What is the port number of http.

(A) 23 (B) 80 (C) 25 (D) 21

MCQ 18 In _______________ the plain-text is processed 1-bit at a time & a series of actions is carried out on it for generating one bit of cipher-text.

(A) Block Cipher (B) Stream cipher (C) One-time pad (D) Playfair Cipher

MCQ 19 Encryption-decryption in cryptosystem is done in ___________________ ways.

(A) 2 (B) 3 (C) 4 (D) 5

MCQ 20 __________________ cryptography has always been focussing on the concept of ‘security through obscurity’.

(A) Modern (B) Asymmetric (C) Classic (D) Latest

MCQ 21 When plain text is converted to unreadable format, it is termed as _____________.

(A) rotten text (B) cipher-text (C) ciphen-text (D) raw text

MCQ 22 A type of cipher that uses multiple alphabetic strings.

(A) Polyalphabetic substitution based (B) Transposition-based (C) Mono alphabetic substitution based (D) Polyalphabetic substitution based

MCQ 23 Which of the protocol is not susceptible to sniffing?

(A) http (B) smtp (C) pop (D) tcp

MCQ 24 _____________ are programs or devices that capture the vital information from the target network or particular network.

(A) Trappers (B) Routers (C) Sniffers (D) Wireless-crackers

MCQ 25 An ______________________ along with a key is used in the encryption and decryption of data.,

(A) cryptography algorithm (B) decryption algorithm (C) encryption algorithm (D) plain text algorithm