Computer And Network Security
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Computer And Network Security
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25 Questions

1. __________ are often delivered to a PC through an email attachment and are often designed to do harm.
2. Which one of the following is a cryptographic protocol used to secure http connection ?
3. What is the most common way to get a virus in your computer-™s hard disk?
4. The phrase ____ describes viruses - worms - trojan horse attack applets and attack scripts.
5. Passwords enable users to-“ [SBI Clerk - 2009]
6. It is a self-replicating program that infects computer and spreads by inserting copies of itself into other executable code or documents.
7. Like a virus - it is a self-replicating program. It also propagates through computer network.
8. Physical security is concerned with protecting computer hardware from human tampering and natural disasters and __________ security is concerned with protecting software from unauthorised tampering or damage.
9. A program designed to destroy data on your compute which can travel to infect other computers - is called is
10. Hackers
11. The first PC virus was developed in
12. Which one of the following would be considered as a way that a computer virus can enter a computer system?
13. A _____ is anything that can cause harm.
14. A hacker contacts your phone or E-mails and attempts to acquire your password is called
15. Hackers often gain entry to a network be pretending to be at a legitimate computer
16. The first computer virus is
17. Why is it unethical to share copyrighted files with your friends? [IBPS PO - 2011]
18. ________ -˜are attempts by individuals to obtain confidential information from you by falsifying their identity. [IBPS PO - 2011]
19. ____ is a form of virus explicitly designed to hide itself from detection by anti-virus software.
20. Which one of the following is a key function of firewall?
21. The main reason to encrypt a file is to
22. Passwords enables user to
23. Which virus spreads in application software?
24. First boot sector virus is
25. A program designed to destroy data on your computer which can travel to -œinfect- other computers is called a __________.

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