Security Questions and Answers

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Showing 10 of 44 questions
Q21
A firewall primarily works at which layer of the OSI model?
  • A Session layer
  • B Application layer
  • C Network layer
  • D Data link layer
Answer: Option C
Explanation: Traditional firewalls inspect packets at the network layer.
Q22
Which type of attack involves overwhelming a system with traffic?
  • A MITM
  • B Phishing
  • C DDoS
  • D Spoofing
Answer: Option C
Explanation: DDoS attacks flood a network or server with massive traffic.
Q23
Which device prevents unauthorized access between networks?
  • A Hub
  • B Router
  • C Firewall
  • D Switch
Answer: Option C
Explanation: Firewalls filter traffic based on defined security rules.
Q24
SSL/TLS works on which layer of OSI model?
  • A Transport layer
  • B Network layer
  • C Session layer
  • D Presentation layer
Answer: Option A
Explanation: SSL/TLS secures connections at the transport layer.
Q25
What does the term encryption mean?
  • A Compressing data
  • B Converting data into unreadable form
  • C Deleting data
  • D Sharing data
Answer: Option B
Explanation: Encryption scrambles data to prevent unauthorized reading.
Q26
Which of the following is a strong password example?
  • A 1234567
  • B password@123
  • C Pa$$w0rd!9
  • D qwerty000
Answer: Option C
Explanation: Strong passwords mix upper/lowercase letters, numbers & symbols.
Q27
Which security method uses two or more verification factors?
  • A Authentication
  • B Authorization
  • C MFA
  • D Accounting
Answer: Option C
Explanation: Multi-Factor Authentication uses multiple forms of identity proof.
Q28
Which virus spreads by attaching itself to executable files?
  • A Worm
  • B Trojan
  • C Macro virus
  • D File-infecting virus
Answer: Option D
Explanation: File-infecting viruses attach to .exe or .com files.
Q29
A Trojan horse is best described as:
  • A Self-replicating malware
  • B Malware disguised as useful software
  • C Malware that encrypts files
  • D Malware controlling remote systems
Answer: Option B
Explanation: Trojans pretend to be legitimate programs.
Q30
What does a VPN mainly provide?
  • A Faster Internet
  • B Encrypted communication
  • C Public IP address
  • D Higher bandwidth
Answer: Option B
Explanation: VPNs secure data by creating encrypted tunnels.

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