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Class 12 CBSE Pre Board 2016 : Informatics Practices (Vidyagyan School, Dulhera, Bulandshahr)

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Saurabh Hore
Vidyagyan School, Dulhera, Bulandshahr

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1. (a) Write two factors to be considered while setting up a network? [1] (b) Write one example each of URL and IP address. [1] (c) Differentiate between Intrusion problem and Denial of Service attack? [1] (d) What is domain name Resolution? [1] (e) Explain the two network addressing system? [2] (f) Write the advantages of using UNICODE to represent text. [2] (g) Which of the following are open standards and which are proprietary standards? [2] (i) OGG (ii) WMA (iii) DOC (iv) PNG 2. (a) What will be the value of y after execution of the following code : [1] int x, y = 0; for (x=1; x<=5; ++x) y=x++; y; (b) While working with NetBeans, Rajmeeta included a ListBox in the form. Now, she wants [1] her friend s name to be displayed in it. Which property of ListBox control should she use to do this? (c) Give two points of difference between IF and Switch statement. [1] (d) Which HTML tag inserts a horizontal straight line on a web page? [1] (e)Write two points of difference between HTML and XML [2] Page 1 of 6

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