CBSE Class 12 Informatics Practices Sample Paper 2015 Set A

1 (a) Draw a network layout of bus topology to connect 5 client computers and 1 server computer.

(b) Mr. John 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.

(c) Which of the following are open source softwares :

GNU, MS-Office, BOSS, Windows OS

(d) Name the government organization that contributes to the growth of FOSS in India.

(e) Read the given activities carefully and mention whether the activity is snooping or eavesdropping:

i. Getting someone’s login information by casually watching what he/she is typing.

ii. Setting up unauthorized parallel telephone lines

iii. Installing some software/hardware which captures the data while on its way.

iv. Reading the files on someone’s computer in an unauthorized manner.

(d) Kristen has typed the following text in the address bar:

http://www.cbse-international.com/help.htm

Identify and differentiate the URL and Domain name with reference to the example given above.

(e) Chanakya has to write a paragraph in English on nobel laureates as a part of his holiday homework. He is using a software in which he types the text in Hindi and the software automatically converts the text into English. For example, if he types the software converts it into “Nobel Prize is given in six categories”.

What kind of text entry is it – phonetic text entry OR keymap based text entry? How is it different from the other kind of text entry? 

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