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2. Explain in detail the actions that we can take against a Cyber stalker.
Ans. To take action against the stalker, you should:
● Keep Evidence: Do not delete any email or other messages of the stalker and also keep a printout of
the same.
● Save all records: If there is any written threat by the stalker then keep it as a record. If the threats have
been verbal only, then keep a record of the date, time and circumstances of those threats.
● Contact stalker’s ISP: If Internet Service Providers (ISP) have concrete proof that any of their users has
been using their service for harassing others, then they should immediately stop providing services to
such people.
● Keep Records: Keeps a record of all the complaints that you have made to an ISP or agency and also
safely keep their official reports for future use.
3. What are the effects of Malware Infection?
Ans. There are certain symptoms that hint that a computer has been infected by malware & virus, like:
● Slowdown: Fall in speed of processing of computer.
● Pop-ups: Appearance of unexpected pop-ups on the system.
● Crash: Frequent crashing of system or BSOD (Blue Screen of Death).
● Running Out of Storage Space: Occupying huge space of storage.
● Loss of File: Abrupt deletion of files of a computer system.
● Unusual activity of messages or programs: Automatic opening or closing of a program, abrupt
restarting of a computer and opening of strange or unknown windows during the process of booting.
● Unusual Network Activity: Unusual network activity such as excessive transfer of data even when all
the applications are closed.
4. Discuss several measures to prevent a Virus attack.
Ans. Some of the popular preventive measures to keep virus at bay are:
● Download Information from trusted Websites: Always download contents from a legitimate
website. The web address of such websites start with ‘https’. Untrusted websites might infect the
computer system with virus.
● Installation of Antivirus: Antivirus are remedial software that scan, detect, clean and remove virus
from a computer system. Some antiviruses also help to recover the data which are lost.
● Scanning & Cleaning of Hard Disk: If a user faces some unusual symptoms while operating a
computer, then it must be scanned and also cleaned as it may have been infected by a malware.
● Update the Antivirus: The existing antivirus has to be updated in order to install its latest virus
signature & clean new virus.
C. Application based questions.
1. Nikita wanted to gift her friend sport shoes. So she searched for this item online again and again but she
couldn’t find anything interesting. Her web browser shows him advertisements related to shoes. What
could be the possible reason she is seeing those advertisements?
Ans. Cookies
2. Rakesh has joined the new office and he doesn’t know many people in the office. Someone is posting
negative and demeaning comments on his social media profile. He is also getting unknown mails from
unknown people. What is happening with Rakesh?
Ans. Cyber Stalking
70 Touchpad Computer Applications-IX

