Python & MySQL: CLASS XI HALF YEARLY QP WTH MS 2024

Half Yearly Examination: 2024-25

Informatics Practices (065)

Class- XI

Time Allowed: 3hrs M.M.: 70

General Instructions:

This question paper contains three sections A, B & C.
All questions are compulsory.
Section A has 20 questions carrying 1 mark each.
Section B has 10 very short answer type questions carrying 2 marks.
Section C has 10 short Answer type questions carrying 3 marks.
All programming question are to be answered using Python language only.

Section-A

Operating system is an example of:

(a) Application software

(b) System software

(d) None of these

Ans

System software

Flash memory is a type of _____ memory.

(a) Primary

(b) RAM

(d) All of these

Ans

Secondary

Identify false statement

(a) You can find deleted files in recycle bin

(b) You can restore any file(s) from recycle bin if needed

(d) You can right click and choose ‘empty recycle’ bin to clean it at once

Ans:

You can increase free space of disk by sending files to recycle bin

Which of the following is available without any payment?

(a) Freeware

(b) Free software

(d) FLOSS

Ans

Freeware

Python uses a/an ______ to convert source code to object code.

(a) Interpreter

(b) Compiler

(d) Special virtual engine

Ans

(a) Interpreter

Python programs are typed in:

(a) Interactive mode

(b) Script mode

(d) All of these

Ans

Script mode

Data items having fixed value are called______.

(a) Identifiers

(b) Functions

(d) Literals

Ans

Literals

Which of the following is/are expression(s)?

(a) a+b-5

(b) a

(d) b-

Ans

a+b-5

The lines beginning with a certain character, and which are ignored by a compiler and not executed, are called_______.

(a) Operator

(b) Operands

(d) Comments

Ans

Comments

Select the reserved keyword in Python.

(a) else

(b) import

(d) all of these

Ans

All of these

What is the value of the expression 100 / 25 ?

(a) 4

(b) 4.0

(d) None of these

Ans

4.0

What is the following code produce?

a=8.6

b=2

print(a//b)

(a) 4.3

(b) 4.0

(d) Compilation error

Ans

4.0

The order of statement execution in the form of top to bottom, is known as _______ construct.

(a) selection

(b) repetition

(d) flow

Ans

sequence

What values are generated when the function range(6, 0, -2) is executed?

(a) [4, 2]

(b) 4, 2, 0]

(d) 6, 4, 2, 0, -2]

Ans

[6, 4, 2]

Function range(3) will yield and iteratable sequence like_____

(a) [0, 2, 4]

(b) [0 ,1, 2]

(d) [1, 2, 3]

Ans

[0, 1, 2]

Consider the following code statement:

for i in range(2, 4):

print(i)

(a) 2

(b) 3

(d) 3 and 4

Ans

2 and 3

If L = [1, 2] then L*2 will yield

(a) [1, 2] *2

(b) [1, 2, 2]

(d) 1, 2, 1, 2]

Ans

[1, 2, 1, 2]

If a1 = [1, 3, 5] and a2=[2, 4, 6] then a1+a2 will yield

(a) [1, 2, 3, 4, 5, 6]

(b) [1, 3, 5, 2, 4, 6]

(d) [1, 3, 5, [2, 4, 6]]

Ans

[1, 3, 5, 2, 4, 6]

To find the last element of list namely ‘smiles’ in Python, ______ will be used.

(a) smiles[0]

(b) smiles[-1]

(d) smiles[:-1]

Ans

smiles[-1]

What is printed by the Python code?

print(list(range(3)))

(a) [0, 1, 2, 3]

(b) [1, 2, 3]

(d) 0, 1, 2

Ans

[0, 1, 2]

SECTION - B

Who developed python programming language? Write any two name(s) of IDE for python language.

Ans

Guido Van Rossum in 1990 developed python programming language

Name of IDE- Spyder, Pycharm, IDLE

Identify the valid identifiers from following-

f@name , as , _tax , roll_no , 12class , totalmarks , addr1

Ans

_tax, roll_no, totalmarks, add1

Write a python program to find the area and perimeter of a rectangle by accepting inputs of length and breadth from user.

(area=length*breadth)

(perimeter=2*(length+breadth))

Ans

length=float(input("Enter length of rectangle"))

breadth=float(input("Enter breadth of rectangle"))

area=length*breadth

perimeter=2*(length+breadth)

print("Area of rectangle",area)

print("Perimeter of rectangle",perimeter)

(a) Write full forms of following:-

1. VDU 2. DVD 3. SMPS 4. OMR

Ans

VDU- Visual Display Unit

DVD- Digital Versatile Disc/ Digital Video Disk

SMPS- Switched-Mode Power Supply

OMR - optical mark reading

Write the difference between compiler and interpreter with example?

Ans

Interpreter	Compiler
✔ Translates program one statement at a time.	✔ Scans the entire program and translates it as a whole into machine code.
✔ It takes less amount of time to analyze the source code but the overall execution time is slower.	✔ It takes large amount of time to analyze the source code but the overall execution time is comparatively faster.
✔ Continues translating the program until the first error is met, in which case it stops. Hence debugging is easy.	✔ It generates the error message only after scanning the whole program. Hence debugging is comparatively hard.
Example Programming language like Python, Ruby use interpreters.	Example Programming language like C, C++ use compilers.

Write python code to convert the time given in minutes into hours and minutes.

Ans

min=int(input("Enter time in minutes"))

h=min//60

m=min%60

print("Hours=",h)

print("Minutes",m)

What is empty statement? Which python statement can be termed as empty statement?

Ans

A statement that does nothing. Where the syntax of the language require the presence of statement but the logic of the program does not.

pass statement is an empty statement.

What will be the output produced by the following code statements?

(a) 87//5

(b) 87//5.0

(d) (87//5.0)==int(87/5.0)

Ans

(a) 17

(b) 17.0

(c) True

(d) True

What will be the output of the following python statements?

a,b,c = 10,40,20

a,c,b = b+10, a+20, c-10

print(a,b,c)

print(a+b//c**2)

Ans

50 10 30

WAP to print sum of natural numbers between 1 to 7. Print the sum progressively, i.e., after adding each natural number, print sum so far.

Ans

sum = 0

for n in range(1,8):

sum = sum+n

print(“Sum of natural number =”, n, “is”, sum)

SECTION – C

Write a program to find sale price of an item with given price and discount(%).

Ans

price= float(input('Enter price:'))

dp = float(input('Enter discount(%):'))

discount = price*dp/100

sp = price-discount

print('Cost Price=',price)

print('Discount=', discount)

print('Selling Price=', sp)

Write a python program to find the largest of three numbers accepted as input from user.

Ans

n1=int(input("Enter first number"))

n2=int(input("Enter second number"))

n3=int(input("Enter third number"))

if n1>n2 and n1>n3:

print("First number is greater number")

elif n2>n1 and n2>n3:

print("Second number is greater number")

else:

print("Third number is greater number")

What will be the output of the following code?

(a) Print(type(1+3))

(b) Print(type(1+3.0))

Ans

(a) <class 'int'>

(b) <class 'float'>

Write a python program to accept age of a person from user and check whether he has completed 18 years or more. If yes print ‘Eligible for Voting’ or otherwise print ‘Minor’.

Ans

age=int(input("Enter age"))

if age>=18:

print("Eligible for Voting")

else:

print("A Minor")

Write python code to calculate Division, Percentage and total marks of 5 subjects of any student, assume that maximum marks for each subject is 100. And division as per criteria given below

Percentage Division

>=60 first

<60 and >=45 second

<45 and >=33 third

<33 fail

Ans

sub1=int(input("Enter first "))

sub2=int(input("Enter second "))

sub3=int(input("Enter third "))

sub4=int(input("Enter fourth "))

sub5=int(input("Enter fifth "))

totalmarks=sub1+sub2+sub3+sub4+sub5

percentage=totalmarks/5

if percentage>=60:

print("First Division")

elif percentage>=45:

print("Second Division")

elif percentage>=33:

print("Third Division")

else:

print("Fail")

What is the difference between append() and extend() Functions. Explain with example.

Write the following arithmetic expressions using operators in Python:

(i) c= (ii) x = a³ + b³

(iii) A = π r(r+h)²

Ans: 1. c = (a + b) / (2 *a)

2. x = a**3 + b**3

3. A = math.pi * r (r + h) ** 2 or A = 3.14*r (r +h) ** 2

Write a python program to check whether an input number is prime or not.

Ans

n=int(input("Enter any number"))

for i in range(2,n):

if n%i==0:

print("Given number is not a prime number")

break

else:

print("Given number is a prime number")

Write a program that input a list, replicates it twice and then prints the sorted list in ascending and descending orders.

Ans

Write a program to calculate Compound Interest.

Ans

Python & MySQL

Friday, February 14, 2025

CLASS XI HALF YEARLY QP WTH MS 2024

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CLASS XI HALF YEARLY QP WTH MS 2024

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