CBSE Class 12 Informatics Practices Question Paper SA2 2013 (2)

CBSE Class 12 Informatics Practices Question Paper SA2 2013 (2). Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

Informatics Practices

1. (a)    Mr. Shankar wants to prevent unauthorized access to/from his company's local area network. Write the name of a system (software/hardware), which he should install  to do the same.

(b) Companies X, Y, and  Z do business with each other and therefore  they want to interconnect their computer networks. Which device out of the following should you suggest to be installed for communication between them?

(i)   Hub

(ii)  Switch

(iii) Gateway

Which of the following media of communication is line of sight? 

(i)   Radio wave

(ii)  Microwave

(iii) Bluetooth

(iv)  None of the above

(d)  What is ODF?

(e)  Compare proprietary software and shareware.    

(f)  Compare Bus topology and Tree topology

(g)  Explain the following terms in the context of network security: 

(i)  Authorization

(ii) Authentication

2. (a) While designing a GUI application, Celine has kept the button nextBtn inactive  by default. She wants it to be active at runtime only if the user has checked  the checkbox acceptCB. Write the statement(s) to do this?

(b)  What is an exit controlled loop? Give an example                                              

(c)  What is the difference between <p> and <br> tags?                                 

(d)  What does XML stand  for? Write any two features of XML.  

Please click the link below to download pdf file of CBSE Class 12 Informatics Practices Question Paper SA2 2013 (2).