CBSE Class 11 Informatics Practices Sample Paper Set 21

Informatics Practices
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Class 11 Informatics Practices Solved Model Papers: CBSE Class 11 Informatics Practices Sample Paper Set 21

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CBSE Class 11 Informatics Practices Sample Paper Set U. CBSE exams for CBSE Students. Based on CBSE and NCERT guidelines. The students should practice these Question Papers to gain perfection which will help him to get more marks in CBSE examination. Please refer to more CBSE Class 11 question papers in other links. The CBSE Question papers are prepared based on trend in past examinations and expected questions in CBSE exams. Its always recommended by CBSE to practice the papers released by CBSE to get better exams in CBSE exams. CBSE Last Year Question Papers for class 11 for final/ term Examinations conducted by Central Board of Secondary Education for all CBSE affiliated schools in India and abroad. Please refer to more CBSE Class 11 sample papers, question papers, HOTs etc in other links.


Q1. (a) Name the basic units of a computer system. 

(b) What is an Operating System. Name any two example. 

(c) Give one point of difference between OCR and OMR. 

(d) What is a port ? Name any two port types. 

(e) Write any one advantage of TFT display. 

(f) What do you understand by Computer Security ? Name any two threats to  computer security.

(g) Why IDE are useful in application development. 

 

Q2.(a) What is the role of JVM in platform independence in Java. 

(b) Give the syntax and example of declaring variable. 

(c) Give any two properties of TextField control in java. 

(d) Differentiate between the following : 

(i) if and switch (ii) runtime errors and logical errors

(e) What will be the value of following expressions if j=5, 

(1) (5*++j)%6 (2) (5*j++)%6

(f) Why program maintenance is considered very important. 

 

Q3. (a) What is SQL ? What are the different categories of SQL commands. 

(b) Name all the integrity constraints used during table creation. 

(c) Describe the following commands with syntax and example:

(i) insert command 

(ii) update command 

(e) When a column value is skipped in an insert command , which value is inserted  in the table.

(d) A table has 5 columns and 10 rows. What is its degree and cardinality. 

(e) Give one point of difference between the primary key and foreign key.

 

Q4.

(a) Write a program in java to calculate the sum of all the no. divisible by 5 in 2 the range 1 to 50.
 
(b) Write the output of the following code: 
int i=0,x=0;
do{
if(i%5==0){
x++;
System.out.println(x + “\n”);
}
++i;
}while(i<20);
System.out.println(x);
 
(c) Rewrite the following while loop into a for loop: 
int s=0;
while(s<=13){
if(s%2==2)
{ System.out.println(“Color is red”);
}
else
{System.out.println(“Color id blue”);
}
System.out.println(“New color”);
s=s+1;
}


Please refer to attached file for CBSE Class 11 Informatics Practices Sample Paper Set U

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Model Practice Papers & Solutions for Class 11 Informatics Practices

Class 11 Informatics Practices CBSE Class 11 Informatics Practices Sample Paper Set 21 PDF Download Guide

Explore downloadable sample sets for Class 11 Informatics Practices. Utilizing the CBSE Class 11 Informatics Practices Sample Paper Set 21 allows learners to gauge exam readiness and master official CBSE assessment structures.

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  • Original Practice Material: Access unique questions for Informatics Practices designed to challenge your understanding.
  • Self-Assessment: Evaluate scores per set to pinpoint weak zones in Class 11 Informatics Practices.
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Steps to Follow After Completing CBSE Class 11 Informatics Practices Sample Paper Set 21

  1. Verify Answers: Compare your responses against professional teacher solutions provided in the sample paper keys.
  2. Error Analysis: Class 11 learners must review incorrect answers carefully to understand underlying mistakes.
  3. Concept Reinforcement: Consult the official NCERT book for Class 11 Informatics Practices when stuck before re-attempting problems.

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