Computer Knowledge ยท General Awareness

Information Security

4,143 Questions

Information security involves protecting computer systems and data from unauthorized access, cyber threats, and damage. It is a core part of the computer knowledge section in various banking and government exams. Practicing these concepts helps in understanding digital signatures, network security, and access control effectively.

Cybersecurity threatsAccess controlCryptography basicsSecurity risk managementDatabase protection

Information Security Questions

Multiple choice

Which of the following best describes a distributed denial-of-service attack?

  1. A DOS against multiple systems across an enterprise network.

  2. A DOS against an entire subnet, affecting multiple systems.

  3. A DOS against an entire network.

  4. A DOS carried out by multiple systems.

  5. A DOS against similar systems in different target networks.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Yes, DOS Is carried out at multiple systems for the target.

Multiple choice

Which of the following is true regarding WEP cracking?

Considering the efforts needed to crack something, only one of these answers makes sense.

  1. Initialization vectors are small, get reused frequently, but are encrypted during transmission.

  2. Initialization vectors are small, get reused frequently, and are sent in cleartext.

  3. Initialization vectors are large, get reused frequently, but are encrypted during transmission.

  4. Initialization vectors are little, get reused frequently, but are encrypted during transmission.

  5. Initialization vectors are large, get reused frequently, and are sent in cleartext.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

WEP cracking Initialization vectors are small, get reused frequently, and are sent in cleartext.

Multiple choice

Authentication can be provided by adding_____to a message.

  1. Sign

  2. Manual Signature

  3. Digital Signature

  4. Initials

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A Digital Signature is a cryptographic technique used to verify the authenticity and integrity of digital messages or documents. It provides authentication by ensuring the message comes from the claimed sender and hasn't been altered. Manual signatures and initials are physical, not digital, authentication methods.