CBSE Class 12 Informatics Practices Question Paper 2022 Set A Solved

Access and download CBSE Class 12 Informatics Practices Question Paper 2022 Set A Solved, carefully designed as per the latest 2025-26 examination guidelines issued by CBSE, NCERT, and KVS. These Class 12 Informatics Practices previous year question papers include detailed solutions, helping students to assess their performance and identify and improve key areas before the final exams.

Solved Informatics Practices Question Papers for Class 12

Practicing these Class 12 Informatics Practices question papers is the best way to understand the actual exam pattern and marking scheme. By solving these papers under timed conditions, Class 12 students can improve their speed and accuracy. Download the full CBSE Class 12 Informatics Practices Question Paper 2022 Set A Solved to begin your self-assessment today.

Informatics Practices Class 12 Question Paper PDF with Solutions

Q1. a) How SWITCH is different from HUB? Explain 
b) What is the purpose of IP address of computer ? 
c) How BUS topology is different from STAR topology? 
d) Which of the following are valid IP addresses ? Give reason(s) if invalid.
 
(i) 121.23.1.45
(ii) 192.168.0.254
(iii) 192.168.AS.1
(iv) 198.-1.1.1
 
e) How Cracker is different from Hacker in Computer Science? 
f) Identify the odd one out of the following :
Optical Fiber/Coaxial Cable/Bluetooth/Twisted Pair Cable Give reason for your answer.
 
g) Define Network. Write any two application of network. 
h) Define Domain Name Resolution. . 
i) Write the full form of a) CDMA b)GSM 
j) Explain the following term a) Firewall b) Snooping 
 
Q2. a) How WHERE clause is different from HAVING Clause? Explain with an example. 
b) What is the use of BETWEEN AND operator in mysql? Explain with an example.
c) Find the output of the following:
1. Select left(concat(“ABCD”,”EFG”),2);
2. Select dayofyear(“2017-02-04”);
3. Select round(5567.78,1)+truncate(3758.91,1);
4. Select pow(length(“Chennai”),4);
5. Select instr(“FLOOR”,”OR”);
 
d) Ms. Rhea created the table EMPLOYEE with the following fields:
ENO,ENAME,ESALand DEPTNO. While creating a table she forgot to add the primary key. Help her to add the primary key to the above table and identify the primary key field.
 
e) Define Transaction and write all the commands under TCL. 
f) Karanwants to add another column „Gender‟ in the already existing table „CUST‟.he has written the following statement.
However, it has errors. Rewrite the correct statement.
 
CHANGE TABLE CUST GENDER char(1);
 
g) How Single Row functions are different from Aggregate Functions. Explain with an example.
 
h) Given below is the „Department‟ table :

CBSE Class 12 Informatics Practices Question Paper 2022 Set A Solved 1

SET AUTOCOMMIT = 0;
UPDATE Department SET DEPNAME = „IT‟ WHERE
DEPNAME = „PERSONAL‟;
INSERT INTO Department VALUES(104,„SALES‟);
UPDATE Department SET DEPNAME = „FRONT OFFICE‟ WHERE
DEPNAME = „RECEPTION‟;
COMMIT;
DELETE FROM Department WHERE DEPNAME = „FRONT
OFFICE‟;
ROLLBACK;
SELECT * FROM Department;
 
What will be the output of the above given SELECT statement ?
 
i) “A & B” Company conducts workshops for employees of organizations.The company requires data of workshops that are organized. Write SQL query to create a table „Workshop‟ with the following structure :

CBSE Class 12 Informatics Practices Question Paper 2022 Set A Solved 2

j) Consider the Table “ Employee” shown below :

CBSE Class 12 Informatics Practices Question Paper 2022 Set A Solved 3

Write the commands in SQL for (i) to (viii) and output for (ix) and (x).
 
(i) To display the details about the Employee name which contains the character“i” anywhere.
 
(ii) To list the names of employee and their salary who are all in C and B grade.
 
(iii) To list the names who are all in South and their department is Comp.
 
(iv) To display the number of employees in each grade.
 
(v) Write a Query to display the structure of the table.
 
(vi) To increase the salary of the employees by 10 % those who are all from “SOUTH”.
 
(vii) To display the minimum salary from the table employee.
 
(viii) To display all the employees namein descending order of their grade.
 
(ix)SELECT MID (ename,length(“A”)) FROM employee;
 
(x) SELECT MAX(salary)-MIN(SLARY) FROM EMPLOYEE GROUP BY AREA;
 

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CBSE Class 12 Informatics Practices Question Paper 2022 Set A Solved

To understand the types of questions asked in past examinations, it is very important for Class 12 students to solve the CBSE Class 12 Informatics Practices Question Paper 2022 Set A Solved provided above. You can easily download these past papers for Class 12 Informatics Practices in PDF format for the last 10 years. By practicing these actual exam questions you will gain an understanding of the difficulty level and the variety of topics covered over the years. By solving these Previous Year Papers (PYPs) you will understand both descriptive and MCQ questions in your final tests.

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Regularly practicing CBSE Class 12 Informatics Practices Question Paper 2022 Set A Solved is the best way to improve your score in Class 12 Informatics Practices. These papers will give you details of the marking scheme and the paper structure used by the CBSE. By regularly attempting these under actual exam conditions at home, you can slowly improve your time management skills, which will help you to complete your Informatics Practices paper within the allowed duration.

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