CBSE Class 12 Informatics Practices Sample Paper SA1 2014

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CBSE Class 12 Informatics Practices Sample Paper SA1 2014.Sample Papers are the very important for every student. The sample papers should be practiced to gain extra marks in examinations. The sample papers have been prepared based on summative assessment1 and summative assessment 2 pattern. The sample papers have been prepared based on pattern of last year examinations and as per latest changes in the syllabus. Students, teachers and parents can download all CBSE educational material and very well prepared worksheets from this website.  All CBSE educational material is developed by our panel of teachers, have also been submitted by CBSE teachers and students. 

1 (a) This transmission medium is used to carry light signals or laser signals. 

a. Optical Fiber b. Twisted Pair c. Coaxial d. Microwave

(b) There are two computers connected in the range of 130 meters in LAN. They are not able to share the information due to loss of signal. Which device you suggest for smooth communication? 

a. Modem b. UPS c. Repeater d. Router

(c) It refers to unauthorized access of someone else’s data, email data communication.

a. Eavesdropping b. Snooping c. Dos d. Firewall

(d) Differentiate open source & free software. 

(e) Identify the type of topology from the following: 

a. In this topology all the nodes are connected together in an arbitrary fashion.

A link may or may not connect two or more nodes.

b. Each node is connected with the help of a single coaxial cable.

(g) Explain following terms. 

a. Eavesdropping b. Firewall

2 (a) Explain the structure of Switch-Case. 

(b) Explain the term implicit conversion. 

(c) Explain START and TYPE attribute for ordered list. 

(d) Differentiate cellspacing and cellpadding attribute of Table. 

(e) Write the output of following code. 

i. int i=1;






ii. int no=45;

if(no= =45)

System.out.println(“Correct password”);

System.out.println(“Welcome to my application”);


System.out.println(“Wrong password”);

(f) Explain main features of XML 

(g) Write java code for solve following equation. 

ans =((a +b)2)2

3.(a) Explain the term CLASS. 

(b) Find out the value of res after executing equation.

i. int a=20,b=10; 

res = a++ +b- - +a + ++b -a;

(c) Differentiate combo & list box

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