CBSE Class 12 Informatics Practices Sample Paper 2020 Solved (2)

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CBSE Class 12 Informatics Practices Sample Paper 2020 Solved (2). It’s always recommended to practice as many sample papers as possible before the examinations. Students can download the sample papers and also question papers of previous years to practice and score better marks in examinations. Refer to other links too for more sample papers.

Q1 (a) Ms. Pooja is interested in transferring song. Suggest two suitable wireless options she may use for doing the same.

(b) Surjit wants to upload/download files from/to a remote internet server. Write the name of the relevant communication protocol, which will let him do the same

(c) It is technology on computer networks whose purpose is to prevent unwanted networking connection according to some filtering/blocking rules. What is it?

(d) Which of the following are open standards?

1) .ogg (2) .doc (3) .ttf (4) . jpeg

(e) What is DoS (Denial of Service)? Explain briefly. 

(f) Differentiate between Dedicated and Non-dedicated server. 

(g) List out any four advantages of Open Standards. 

Q2 (a) Which property of jLabel swing control is used to specify the image during design time? 

(b) Which statement is used to terminate the loop before its maturity? 

(c) Which HTML tag and corresponding attributes are used to establish default font size for entire page?

(d) What is the difference between <UL> and <OL> tag? 

(e) Write the output of:

int a=1,b=2;

if( + + b <5)

{

a*=b;

}

System.out.println("a="+a+"b="+b);

(f) Write a program in java that reads 2 integers and displays their sum in JOptionPane. 

(g) Write 4 features of XML. 

Q3 (a) Mr. Ganesh wants to give moderation of 5 marks to all students those have below 30 marks.

Name the command for this purpose.

(b) Correct the following SQL command

SELECT stdname FROM STUDENT

WHERE stdname=NULL;

(c) Which commands in MySql is used to make any Database current Database and see the list of tables in that data base? 

Please click the link below to download CBSE Class 12 Informatics Practices Sample Paper 2020 Solved (2).

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