Class- 7th Computer
Chapter :-9 Cyber Threats and Security
Note :- There is no need to write hardwords.
A. Answer the following questions
1. What is full form of VIRUS ?
Ans:- Vital Information Resources Under Seize.
2. What is antivirus ?
Ans:- An antivirus is a computer program that is designed to identify , prevent and remove virus from computer.
3. What is computer virus ?
Ans:- A computer virus is a program or set of programs that disrupts the normal functioning of a computer.
4. What is firewall ?
Ans:- A firewall is a security system that protects your computer by preventing unauthorised users from gaining access to it through the network or internet.
Q.5 Write any three antivirus software.
Ans:- 1. Quick Heal 2. Avast 3. McAfee
B. Answer the following questions.
1. What is cybercrime? Write it's types.
Ans:- A cybercrime is any illegal activity done through the internet. Cyber crimes can be divided into three main categories: Crimes against an individual person, property, and organisation/society
Exam - identify theft
2. What is difference between cyberstalking and cyberbullying?
Ans:- Cyberstalking :- When an attacker harasses a victim through emails, social media, chat rooms, blogs, instant messaging, etc., it is called cyberstalking.
Cyberbullying:- Cyberbullying is an act of harming or harassing through information technology in a deliberate manner, like threatening messages by email, posting of embarrassing photos and videos on social networking sites, etc
3. What is phishing?
Ans:- It is an act of sending an email to a user; misleading him to believe that it is from a trusted person or organisation. The user is asked to visit a website in which he is asked to update or validate his personal details.
4. What is cyberextrortion ?
Ans:- It is a crime in which the victim is attacked first and then forced to pay money to stop further attacks. Cyber extortion may be done by blocking the system resource of the victim by some Ransomware or Denial of Service (DoS) attack.
5. What is cyber security?
Ans:- Cyber security is a collection of technologies, processes, and practices designed to protect networks, computers, programs, and data from attack, damage, or unauthorised access.
(Note:- Make diagram related cyber security on page -129 )
6. Define the term 'forgery'
Ans:- It is an act of imitating or making a false copy of a document like Birth Certificate, Driving Licence, Currency notes, Cheque Book. Special software, scanners, and other devices are used to recreate these documents and proceed with the intended scam.
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