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Chapter 17: Computer Ethics and Cyber Security — Online MCQ Test

COMPUTER APPLICATIONS · CLASS 11th · Tamil Nadu State Board
Practice Chapter 17: Computer Ethics and Cyber Security with a free chapter-wise online MCQ test. This chapter covers: The final chapter covers digital ethics cyber crimes malicious software security threats and protection measures. Students study firewalls cryptography ethical internet behavior gu.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 17: Computer Ethics and Cyber Security — Important Questions & Answers

What is the main purpose of a firewall?
  • A. To store backup files
  • B. To monitor and control network traffic
  • C. To increase monitor brightness
  • D. To compress large files
Answer: B. To monitor and control network traffic
A firewall helps protect a computer or network by monitoring and controlling incoming and outgoing traffic based on security rules.
Which of the following is an example of malicious software?
  • A. Antivirus
  • B. Firewall
  • C. Virus
  • D. Backup utility
Answer: C. Virus
A virus is a type of malicious software designed to damage, disrupt, or spread itself to other files or systems.
A student receives an email asking for bank details and a password. What should the student do?
  • A. Reply immediately with the details
  • B. Delete the email and inform a trusted adult
  • C. Forward it to everyone
  • D. Open all attachments first
Answer: B. Delete the email and inform a trusted adult
Such emails may be phishing attempts. The correct action is to avoid responding and report it to a trusted person.
A computer suddenly becomes slow, shows unwanted pop-ups, and some files are missing. What is the most likely cause?
  • A. Hardware upgrade
  • B. Malware infection
  • C. System backup
  • D. Screen calibration
Answer: B. Malware infection
Malware can cause slow performance, pop-ups, and file damage or loss by interfering with normal computer operations.
Which of the following is the best reason for following computer ethics in school labs?
  • A. To reduce monitor size
  • B. To ensure fair use, privacy, and responsible behavior
  • C. To make computers work without electricity
  • D. To avoid using any software
Answer: B. To ensure fair use, privacy, and responsible behavior
Computer ethics promote responsible use of technology, respect for privacy, and fairness in handling digital resources.