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CBSE Pre Board Class 12 2016 : Informatics Practices (Kendriya Vidyalaya (KV) No. 1, Salt Lake)

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Informatics Practices (Code: 065) Sample Paper 2 Class XII (2015-16) Time: 3Hrs. 1 (a) MM: 70 The Chalchitra theatre has a computer network. The network is in one building. (2) (i) Name this type of network( out of LAN/MAN/WAN). (ii) Name one communication channel that can be used for fast communication between workstations of the network. (b) Explain in brief any 2 security threats to Computer networks. (2) (c) Write the advantages of using Unicode to represent text. (2) (d) Write one example each of URL and IP address. (2) (e) Identify the topology shown below. Write 2 advantages of this topology. (2) While working in Netbeans, Ms. Sonia has designed a login page where she wants to display Welcome or Try again message depending on the password entered by the user in text field named jTexField1 . If password entered is India , Welcome message should be displayed otherwise Try again message should be displayed. Help her in choosing more appropriate statement out of 'If statement' and 'Switch statement'. Give reason for your choice. (1) 2 (a) 1

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