Class 12 Informatics Practices 065 Previous Year Question Paper 2022 – Term 2

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Series %BAB%
Question Paper Code 90 Set 4

INFORMATICS PRACTICES – TERM 2
(Session 2021-22)

Time allowed : 2 hours
Maximum Marks : 35

General Instructions :

  1. This question paper is divided into 3 Sections – A, B and C.
  2. Section A, consists 7 questions (1-7). Each question carries 2 marks.
  3. Section B, consists 3 questions (8-10). Each question carries 3 marks.
  4. Section C, consists 3 questions (11-13). Each question carries 4 marks.
  5. Internal choices have been given for question numbers – 1, 3, 7, 8 and 12.

SECTION -A (Each question carries 2 marks)

1. Rushil thought “WWW” and “Internet” are synonyms i.e., they meant same and can be used interchangeably. But the teacher said that they are not same. Help him to understand the meaning of both the terms with the help of a suitable example of each.
OR
What are Cookies ? How can we disable Cookies ?

2. (i) What is the function of a Gateway ?
(ii) Give examples of any two plug-ins.

3. Find the output of the following SQL Queries :
(i) SELECT ROUND (7658.345,2):
(ii) SELECT MOD(ROUND (13.9,0),3);
OR
Give any two differences between the POWER( ) and SUM( ) SQL functions.

4. Give one advantage and disadvantage each of Bus and Star topology.

5. Find the output of the following SQL queries :
(i) SELECT SUBSTR(“FIT INDIA MOVEMENT’,5);
(ii) SELECT INSTR(“ARTIFICIAL INTELLIGENCE”, “IA”);

6. Srikanth created the following table STUDENT in his database.
Class-12-IP-065-Previous-Year-Question-Paper-2022-term-2-Q6
He now wants to count number of students in each class where the number of students is more than 3. He has executed the following query :
SELECT MAX(Marks) FROM STUDENT WHERE COUNT(*)>3 GROUP BY Class;
But, he got an error. Identify the error(s) and rewrite the query. Also underline the correction(s) done.

7. Ms. Mohini is working in a school and stores the details of all students in a table SCHOOLDATA.
Class-12-IP-065-Previous-Year-Question-Paper-2022-term-2-Q7
Write SQL statements from the above given table to :
(i) To remove leading spaces from the column Name.
(ii) Display the names of students who were born on Sunday.
OR
Predict the output of the following SQL queries from the given table : SCHOOLDATA
(i) SELECT MAX(Percent) FROM SCHOOLDATA;
(ii) SELECT LEFT(Gender,1),Name FROM SCHOOLDATA WHERE YEAR (Dob)=2005;

SECTION – B (Each question carries 3 marks)

8. Predict the output of the following SQL queries :
(i) SELECT TRIM(” ALL THE BEST “);
(ii) SELECT POWER(5,2);
(iii) SELECT UPPER (MID(‘”start up india”,10));
OR
Consider a table "MYPET" with the following data:
Class-12-IP-065-Previous-Year-Question-Paper-2022-term-2-Q8or
Write SQL queries for the following :
(i) Display the Breed of all the pets in uppercase.
(ii) Display the total price of all the pets.
(iii) Display the average life span of all the pets.

9. Write the names of SQL functions to perform the following operations :
(i) Display name of the Month from your date of birth.
(ii) Convert email-id to lowercase.
(iii) Count the number of characters in your name.

10. Consider the following table : PRODUCT
Class-12-IP-065-Previous-Year-Question-Paper-2022-term-2-Q10
Find the output of the following SQL queries :
(i) SELECT 10+MOD(QUANTITY,3) FROM PRODUCT WHERE PNAME = “Eraser’;
(ii) SELECT ROUND(PRICE,2)*QUANTITY FROM PRODUCT WHERE QUANTITY > 2;
(iii) SELECT UCASE(RIGHT(PNAME,2)) FROM PRODUCT;

SECTION – C (Each question carries 4 marks)

11. Consider the table : ITEM
Class-12-IP-065-Previous-Year-Question-Paper-2022-term-2-Q11
Write SQL queries for the following :
(i) Display all the records in descending order of Stockdate.
(ii) Display the Type and total number of items of each Type.
(iii) Display the least Price.
(iv) Display the Itemname with their price rounded to 1 decimal place.

12. Consider the following table :
Class-12-IP-065-Previous-Year-Question-Paper-2022-term-2-Q12
Predict the output for the following SQL queries :
(i) SELECT MAX(Qtysold), MIN(Qtysold) FROM SALESMAN;
(ii) SELECT COUNT (Area) FROM SALESMAN;
(iii) SELECT LENGTH (Sname) FROM SALESMAN WHERE MONTH(Dateofjoin)=10;
(iv) SELECT Sname FROM SALESMAN WHERE RIGHT(Scode,1)=5;
OR
Based on the given table SALESMAN write SQL queries to perform the following operations :
(i) Count the total number of salesman.
(ii) Display the maximum qtysold from each area.
(iii) Display the average qtysold from each area where number of salesman is more than 1.
(iv) Display all the records in ascending order of area.

13. ABC International School, Delhi has different wings Administrative Wing (W1), Primary Wing (W2), Middle Wing(W3) and Secondary Wing(W4) as shown in the diagram :
Class-12-IP-065-Previous-Year-Question-Paper-2022-term-2-Q13i
The school also has a branch in Mumbai. The school management wants to connect all the wings as well as all the computers of each wing (W1, W2, W3, W4).
Distance between the wings are as follows :
Class-12-IP-065-Previous-Year-Question-Paper-2022-term-2-Q13ii
Number of computers in each of the wing :
Class-12-IP-065-Previous-Year-Question-Paper-2022-term-2-Q13iii
Based on the above specifications, answer the following questions :
(i) Suggest the topology and draw the most suitable cable layout for connecting all the wings of Delhi branch.
(ii) Suggest the kind of network required (out of LAN, MAN, WAN) for connecting
(a) Administrative Wing (W1) with Middle Wing (W3)
(b) Administrative Wing (W1) with the Mumbai branch.
(iii) Suggest the placement of the following devices with justification :
(a) Repeater
(b) Switch/Hub
(iv) Due to pandemic school had to adopt Online classes. Suggest the protocol that is used for sending the voice signals over internet. Also, give an example of an application of WWW that helped the teachers to send messages instantly to the students.

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