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1. Answer the following questions:
(a) . What is a Modem? What is its function?
(b) . Define the followings:
(i). Firewall (ii). Snooping
(c) . Differentiate between (write any two points):
Freeware and Shareware
(d). Expand the terms :
(i). OSI, (ii). FLOSS, (iii). GNU, (iv). GPL
(e). What is a Network? Write any two advantages of Network.
2. Answer the following questions:
(a). Is Java case sensitive? What is meant by the term case sensitive?
(b). What are literals in Java? How many types of literals are allowed in Java?
(c). Differentiate between a Container and a Component?
Write any two differences between Logical and Physical text styles.
(d). What is a difference between a text field and a text area? Write any two points.
Differentiated between XML and SGML? Write any two points.
(e). What is an Identifier? What is the Identifier forming rule of Java?
3. Answer the following questions:
(a). What is Client Server Computing? Can you give example of a real-life situation that uses Client Server Computing? (2)
(b). What is SQL? What are different categories of commands available in SQL?
(c). Indian Public School in Darjeeling is setting up the network between its different wings. There are 4 wings named as SENIOR(S), JUNIOR(J), ADMIN(A), and HOSTEL(H).
Please refer to attached file for CBSE Class 12 Informatics Practices Sample Paper 2014 (2).