FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Thus, statement (i) is true. Viruses cannot spread without human action, such as running an infected program to keep it going. People continue the spread of a computer virus, mostly unknowingly, by sharing infecting files or sending e-mails with viruses as attachments in the e-mail. Thus, statement (ii) is true.

Detailed explanation-2: -A computer virus is a program that spreads by first infecting files or the system areas of a computer or network router’s hard drive and then making copies of itself. Some viruses are harmless, others may damage data files, and some may destroy files.

Detailed explanation-3: -A computer virus is a small software program that spreads from one computer to another and interferes with computer operation. A computer virus might corrupt or delete data on a computer, use an email program to spread the virus to other computers, or even delete everything on the hard disk.

Detailed explanation-4: -Malware or malicious software is one of the most common tools cybercriminals use to steal sensitive information. Computer viruses, worms, Trojan horses, and spyware gain access to a network by infecting a computer connected to it.

Detailed explanation-5: -Malware can use known software vulnerabilities to infect your PC. A vulnerability is like a hole in your software that can give malware access to your PC. When you go to a website, it can try to use vulnerabilities in your web browser to infect your PC with malware.