This section contains more frequently asked Information Security Multiple Choice Questions Answers in the various competitive exams.

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1. Which of the following actions can be taken while filtering SMTP spam traffic?
  1. Delete the spam mail
  2. Redirect it to the spam mail box
  3. Return it to the sender.
  4. Tag the spam mail

  • 1, 2, 3
  • 1,2
  • 1,2,4
  • 3

2. Which of the following files are mostly infected?
  1. .DOT
  2. .EXE
  3. .COM
  4. .TXT

  • 1,2,3
  • 3,4
  • 2,3
  • 4

3. What is the function of MTA(Mail Transfer Agent)?

  • It helps in reading the emails
  • It receives and delivers the messages
  • It resolves the names
  • It detects emails carrying virus

4. What is DHA?

  • Directory Harvest Attack
  • DNS Harvest Attack
  • Direct Harvest Attack
  • Dictionary Harvest Attack

5. How many keys are required if two parties communicate using Symmetric Cryptography?

  • One
  • Two
  • Three
  • Four

6. What is S/MIME?

  • Secure Multipurpose Intranet Mail Extensions
  • Secure Multipurpose Internet Mail Extensions
  • Secure Multipurpose Internet Message Extensions
  • Secure Multipurpose Intranet Message Extensions

7. Which of the following anti-spam measures are taken to reduce spam?

  • Legislative measures
  • Organizational measures
  • Behavioral measures
  • Technological measures.
  • All of the above

8. Which of the following are famous worm attacks?

  • MyDoom Worm
  • Bagle Worm
  • Netsky Worm
  • Sasser Worm
  • All of the above

9. Which of the following techniques are used by spammers to find valid/existent email addresses?

  • SMTP spoofing
  • SMTP poisioning
  • DNS poisioning
  • Directory Harvest Attack

10. Daniel has deployed an antispam solution in his network. Positive detection of non-spam SMTP is called:

  • Negative detection
  • False positive detection
  • False negative detection
  • Untrue detection
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