CBSE Class 12 Informatics Practices Sample Paper 2020 (1)

Scroll down for PDF

CBSE Class 12 Informatics Practices Sample Paper 2020 (1). 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.

1. (a) Two doctors have connected their mobile phones to transfer a picture file of a person suffering from a skin disease. What type of network is formed? Which communication media out of Coaxial cable, Optical fiber, Bluetooth, Satellite link should be used to transfer the file ?

(b) State reason why Star topology requires more cable length than Bus topology. 

(c) “Open Source Software developers work for the good of community”. Is this statement true? Give reason.

(d) What happens during ‘Domain Name Resolution’? 

(e) How is ‘Denial of service’ attack, a threat to Network security? 

2. (a) Identify the odd one out of the following statements. State reason for your choice. 

(i) switch (ii) do while (iii) while (iv) for

(b) What is the difference between setVisible() and setEnabled() methods? 

(c) What is the difference between the following statements (i) and (ii)? 

i a=5;

ii if(a = = 5)

x=3;

(d) Write the output in jTextField1 if depcode is 3.

switch (depcode)

{ case 1 : allowance=4000;

break;

case 2 : allowance=3200;

break;

default : allowance=1000;

}

jTextFieldl.setText( " " +allowance);

(e) Sandhya is creating a webpage. She is entering HTML code on her computer. In between, she keeps pressing ‘Refresh’ / ‘Reload’ button on her browser. What is the purpose?

(f) What does ‘XML’ stand for? How is the purpose of HTML different from XML? 

(g) Write Java code (statements) to declare Y as integer variable. Then, assign the value 30 to a variable Y. Increase the value of Y by 5 and store the increased value in Z.

3. (a) What is MySQL? 

(b) Charvi is inserting “Sharma” in the “LastName” column of the “Emp” table but an error is being displayed. Write the correct SQL statement.

INSERT INTO Emp(‘Sharma’)VALUES(LastName) ;

(c) Kunal created the following table with the name ‘Friends’ : 

Please click the link below to download CBSE Class 12 Informatics Practices Sample Paper 2020 (1).

Tags: 


Click on the text For more study material for Informatics Practices please click here - Informatics Practices

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Registration of NEET 2020 starts

The NEET 2020 registration process would start on Monday, December 2nd, 2019. National Testing Agency, NTA would carry out the county’s undergraduate entrance exam for medical and dental admissions.  The examination is scheduled to take place in English, Hindi, and...

CBSE to conduct a voluntary test for class 11th and 12th

Nowadays students have the liberty to choose the field they seem to fit in. A few years back the problem was parents who burdened children with their own choices. On the other side, now students along with their parent's support are free to choose their field. Not any...

NCERT NTSE Admit Card 2020 released - know more

Introduction: NTSE 2020 National Talent search examination is conducted by NCERT to take out the students who excel in science. It is organized to measure and let the students with talent outshine in their coming future. This talent search exam is taken in 2 stages....

JEE Entrance Exam 2020 Dates Registration Admit Cards Exam Pattern

JEE Entrance exam is conducted for students who wish to pursue engineering in different subjects or categories like mechanical, CS, etc.. It is officially organized and conducted by NTA. Formerly it was organized by CBSE. It avails seats for students in IITs, NITs, and...

CBSE Board Secretary says Class 10 and 12 CBSE Exam Pattern to be modified

The Central Board of Secondary Education is expected to introduce a few changes to the exam pattern for class 10 and board exams by 2023. Anurag Tripathi, secretary of CBSE speaking at an Assoham School Education Summit said that although this year class 10 students...

×
Studies Today