Chapter-12 Security Aspects — Online MCQ Test
COMPUTER SCIENCE · CLASS 12 SECOND PUC · Karnataka State Board
Practice Chapter-12 Security Aspects with a free chapter-wise online MCQ test.
This chapter covers: malware - phishing - spoofing - firewall - cookies - HTTP - FTP - TCP/IP.
AI-generated questions from basic to board-exam level, with instant results and explanations.
Chapter-12 Security Aspects — Important Questions & Answers
What is malware?
- A. Software designed to harm or exploit a computer system
- B. A type of firewall protection
- C. A secure communication protocol
- D. A web browser extension
Answer: A. Software designed to harm or exploit a computer system
Malware is malicious software designed to damage, disrupt, or gain unauthorized access to computer systems.
Malware is malicious software designed to damage, disrupt, or gain unauthorized access to computer systems.
Which of the following is NOT a type of malware?
- A. Virus
- B. Worm
- C. Encryption
- D. Trojan
Answer: C. Encryption
Encryption is a security technique, not a type of malware. Virus, Worm, and Trojan are all types of malware.
Encryption is a security technique, not a type of malware. Virus, Worm, and Trojan are all types of malware.
Which layer of TCP/IP is responsible for routing?
- A. Application Layer
- B. Transport Layer
- C. Internet Layer
- D. Link Layer
Answer: C. Internet Layer
The Internet Layer, which includes IP (Internet Protocol), is responsible for routing data packets across networks.
The Internet Layer, which includes IP (Internet Protocol), is responsible for routing data packets across networks.
Analyze: A company wants to protect its internal network from external threats. Which combination of security measures would be most effective?
- A. Only using passwords
- B. Firewall + encryption + access controls + regular security updates
- C. Disabling all network connections
- D. Installing antivirus software only
Answer: B. Firewall + encryption + access controls + regular security updates
A multi-layered security approach combining firewalls, encryption, access controls, and regular updates provides comprehensive protection against various threats.
A multi-layered security approach combining firewalls, encryption, access controls, and regular updates provides comprehensive protection against various threats.
Why might a sophisticated attacker use zero-day exploits rather than known vulnerabilities?
- A. They are easier to detect
- B. They avoid triggering security patches and defenses, allowing attacks to succeed against unprepared systems
- C. They are less effective
- D. All systems are automatically protected
Answer: B. They avoid triggering security patches and defenses, allowing attacks to succeed against unprepared systems
Zero-day exploits target unknown vulnerabilities before vendors release patches, making them highly effective as no defense mechanisms exist yet.
Zero-day exploits target unknown vulnerabilities before vendors release patches, making them highly effective as no defense mechanisms exist yet.