Information and Network Security MCQs with answers Page - 1

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A

Admin • 799.53K Points
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Q. An algorithm in encryption is called _____________.

  • (A) Algorithm
  • (B) Procedure
  • (C) Cipher
  • (D) Module

A

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Q. The information that gets transformed in encryption is ____________.

  • (A) Plain text
  • (B) Parallel text
  • (C) Encrypted text
  • (D) Decrypted text

A

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Q. In brute force attack, on average half of all possible keys must be tried to achieve success.

  • (A) True
  • (B) False
  • (C) none
  • (D) all

A

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Coach

Q. A (n) ______ algorithm transforms ciphertext to plaintext.

  • (A) Encryption
  • (B) Decryption
  • (C) Either (a) or (b)
  • (D) Neither (a) nor (b)

A

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Q. The ________ is the message after transformation.

  • (A) Ciphertext
  • (B) Plaintext
  • (C) Secret-text
  • (D) None of the above

A

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Q. Which of the following is not a type of virus?

  • (A) Boot sector
  • (B) Polymorphi
  • (C) C Multipartite
  • (D) Troj

A

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Q. A computer ________ is a malicious code which self-replicates by copying itself to other programs.

  • (A) Program
  • (B) Virus
  • (C) Application
  • (D) Worm

A

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Q. _______________ infects the master boot record and it is challenging and a complex task to remove this virus.

  • (A) Boot Sector Virus
  • (B) Polymorphi
  • (C) C Multipartite
  • (D) Troj

A

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Q. ______________ infects the executable as well as the boot sectors.

  • (A) Non-resident virus
  • (B) Boot Sector Virus
  • (C) Polymorphic Virus
  • (D) Multipartite Virus

A

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Q. Trojan creators do not look for _______________.

  • (A) Deleting Data
  • (B) Protecting Data
  • (C) Modifying Data
  • (D) Copying Data

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