COMPUTER FUNDAMENTALS

COMPUTER SOFTWARE

OPERATING SYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does a worm infect a computer?
A
E-mail attachments
B
Through security loopholes, your computer is not up to date
C
Suspicious web links
D
On memory sticks
Explanation: 

Detailed explanation-1: -A computer worm duplicates itself to spread to uninfected computers. It often does this by exploiting parts of an operating system that are automatic and invisible to the user. Typically, a user only notices a worm when its uncontrolled replication consumes system resources and slows or halts other tasks.

Detailed explanation-2: -Worms represent a large category of malware. Different worms use different methods to infect devices. Depending on the variant, they can steal sensitive information, change security settings, send information to malicious hackers, stop users from accessing files, and other malicious activities.

Detailed explanation-3: -A worm is similar to a virus, except that it does not need a program in order to run. Instead, it spreads by itself, often through networks or the Internet.

Detailed explanation-4: -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.

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