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CBSE Class 12 Informatics Practices Question Paper 2011 (Set 1)

Apr 4, 2012 07:31 IST

Solve 2011 CBSE : Informatics Practices question paper Set 1

1. (a) Mr. Kant Sengupta 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. 1

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(b) Seven Brothers Fashion Inc. is a fashion company with design unit and market unit 130 meters away from each other. The company recently connected their LANs using ethernet cable to share the stock related information. But after joining their LANs they are not able to share the information due to loss of signal in between. Which device out of the following should you suggest to be installed for a smooth communication? 1

(i) Modem

(ii) Repeater

(iii) UPS

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(c) Which of the following is not a feature of Networking? 1

(i) Resource Sharing

(ii) Reliability

(iii) Uninterrupted Power Supply

(iv) Reduced cost

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(d) Name any two Indian scripts included in Unicode. 1

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(e) Ms. Vidya Chauhan is confused between Proprietary Software and Open Source Software. Mention at least two points of   difference to help her understand the same. 2

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(f) Identify the type of Topology from the following: 2

(i) In it, each node is connected with the help of a single co-axial cable.

(ii) In it, each node is connected with the help of independent cable with the help of a central switching (communication controller).

(g) Define the following with reference to Threats to Network Security: 2

(i) Worm

(ii) Trojan Horse

CBSE Class 12 Informatics Practices Question Paper 2011 (Set 1)

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