MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Typically, computer viruses spread through malicious online downloads, infected email attachments, or by plugging in infected hardware like an external flash drive (USB stick). Computer viruses can spread through almost any method of file sharing, as long as the virus can avoid detection by antivirus programs.

Detailed explanation-2: -The most common symptoms of a computer virus infection are… Your computer slows down without any reason. Your computer system has less available memory than it should. Unknown programs or files are being created. Programs or files become missing.