Page 497 - Computer Science V2.0 Class 11

iv. Do not eat food or drink over the keyboard. Food crumbs that fall into the gaps between the keys or spilled over liquid can cause
issues to the devices.
b. Smart and Safe Internet Surfing:
i. Download only from secure websites and official app stores.
ii. Always type the URLs rather than using a webpage or email link.
iii. Avoid clicking on unknown links.
iv. Use regularly updated anti-virus software.
v. Look for secure URLs (with https) while providing data or making payments.
vi. Avoid using the proxy sites and proxy software.
17. What is data privacy? Websites that you visit collect what type of information about you?
Ans. Data privacy refers to the rules about the authorised access of data, i.e., which all users/sites/ service providers etc. can access or track
the data/ browsing information.
Websites collect the following information:
i. IP addresses of the user’s computer (user’s location).
ii. Information about usage of website. For example, what users click on and how long they spend on a page.
iii. Information about browsers and device used to access the sites.
iv. Browsing activity across different sites.
18. In the computer science class, Sunil and Jagdish were assigned the following task by their teacher.
a. Sunil was asked to find information about “India, a Nuclear power”. He was asked to use Google Chrome browser and prepare his
report using Google Docs.
b. Jagdish was asked to find information about “Digital India”. He was asked to use Mozilla Firefox browser and prepare his report using
Libre Office Writer. What is the difference between technologies used by Sunil and Jagdish?
Ans. Sunil used Google Chrome browser and prepared his report using Google Docs, which are proprietary (freeware) products provided by
Google.
Jagdish used Mozilla Firefox browser and prepared his report using LibreOffice Writer, which are free and open source software.
19. Cite examples depicting that you were a victim of following cyber-crime. Also, cite provisions in IT Act to deal with such a cyber-crime.
a. Identity theft
b. Credit card account theft
Ans. a. Someone got hold of login and password of our social network site and used it to troll or cyber bully someone using stolen credentials.
b. Someone did fraud shopping after stealing our credit card.
20. Neerja is a student of Class XI. She has opted for Computer Science. Neerja prepared the project assigned to her. She mailed it to her
teacher. The snapshot of that email is shown below.

Find out which of the following email etiquettes are missing in it. Justify your answer.
a. Subject of the mail
b. Formal greeting

Society, Law and Ethics 483