12th Computer Science Important 3 Mark Question Paper

St. Britto Hr. Sec. School - Madurai

12th Computer Science Important 3 Mark Question Paper-Aug 2020

Time : 1.30 Hours

Part - A

Generic 3 - Answer All Question

Read the following program. Answer the following question.
Class sample:
x, y = 10,20
s= sample()
print (s. x + s. y)
1. What does sample denotes?
2. What does x, y denotes?
3. What does s denotes?

Differentiate PYTHON and C++

Write the description for the following escape sequence.
(i) \r
(ii) \000
(iii) \v

Write a note on
(i) isalnum ()
(ii) isalpha ()
(iii) isdigit ()

Explain the working of the following program.
class Sample:
def _ init_(self, num):
print("Constructor of class Sample ... ")
self.num=num
print("The value is:", num)
S=Sample(10)

Write the importance of using data model.

Write a pseudo code for Insertion sort.

Write the different factors in which the time efficiency of an algorithm its measured.

What are the ways to write a new or edit are existing CSV file in python?

Write any three uses of data visualization.

How will you create CSV normal file?

Write algorithm to find minimum of its three arguments.

What is the use of format( )? Give an example.

import matplotlib.pyplot as plt
years = [2014, 2015, 2016, 2017, 2018]
total_populations = [8939007, 8954518, 8960387, 8956741, 8943721]
plt.plot (years, total_populations)
plt.title ("Year vs Population in India")
plt.xlabel ("Year")
plt.ylabel ("Total Population")
plt.show()
In this program,
Plt.title() → specifies title to the graph
Plt.xlabel() → specifies label for X-axis
Plt.ylabel() → specifies label for Y-axis

Write the use of Savepoint command with an example.

What happens if you modify a variable outside the function? Give an example

What is the output of the following Python program?

How will you represent Octal, hexadecimal and long integer data?

write algorthim to check whether the entered number is even or odd.

What is the output of the following program?
class Greeting:
def ini
t(self, name):
self.name = name
def di
splay(self):
print("Good Morning ", self.name)
obj=Greeting ('Bindu Madhavan')
obj.display()

Differentiate pure and impure function.

Why 'in' and 'not in' operators are called membership operator? Explain with example.

Draw the flowchart that illustrates the use of break and continue statement in loop structure.

Explain how a connect to be made to a database (Academy through python SQlite3.

# program to calculate the sum of numbers 1 to 100
n = 100
sum = 0
for counter in range(1,n+1):
sum = sum + counter
print("Sum of 1 until %d: %d" % (n,sum))

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12th Computer Science Important 3 Mark Question Paper

St. Britto Hr. Sec. School - Madurai

12th Computer Science Important 3 Mark Question Paper-Aug 2020

Part - A

Generic 3 - Answer All Question

Read the following program. Answer the following question. Class sample: x, y = 10,20 s= sample() print (s. x + s. y) 1. What does sample denotes? 2. What does x, y denotes? 3. What does s denotes?

Differentiate PYTHON and C++

Write the description for the following escape sequence. (i) \r (ii) \000 (iii) \v

Write a note on (i) isalnum () (ii) isalpha () (iii) isdigit ()

Explain the working of the following program. class Sample: def _ init_(self, num): print("Constructor of class Sample ... ") self.num=num print("The value is:", num) S=Sample(10)

Write the importance of using data model.

Write a pseudo code for Insertion sort.

Write the different factors in which the time efficiency of an algorithm its measured.

What are the ways to write a new or edit are existing CSV file in python?

Write any three uses of data visualization.

How will you create CSV normal file?

Write algorithm to find minimum of its three arguments.

What is the use of format( )? Give an example.

Write the use of Savepoint command with an example.

What happens if you modify a variable outside the function? Give an example

What is the output of the following Python program?

How will you represent Octal, hexadecimal and long integer data?

write algorthim to check whether the entered number is even or odd.

What is the output of the following program? class Greeting: def __ini t__(self, name): self.__name = name def di splay(self): print("Good Morning ", self.__name) obj=Greeting ('Bindu Madhavan') obj.display()

Differentiate pure and impure function.

Why 'in' and 'not in' operators are called membership operator? Explain with example.

Draw the flowchart that illustrates the use of break and continue statement in loop structure.

Explain how a connect to be made to a database (Academy through python SQlite3.

# program to calculate the sum of numbers 1 to 100 n = 100 sum = 0 for counter in range(1,n+1): sum = sum + counter print("Sum of 1 until %d: %d" % (n,sum))

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Tamilnadu Stateboardszs - Class

Read the following program. Answer the following question.
Class sample:
x, y = 10,20
s= sample()
print (s. x + s. y)
1. What does sample denotes?
2. What does x, y denotes?
3. What does s denotes?

Write the description for the following escape sequence.
(i) \r
(ii) \000
(iii) \v

Write a note on
(i) isalnum ()
(ii) isalpha ()
(iii) isdigit ()

Explain the working of the following program.
class Sample:
def _ init_(self, num):
print("Constructor of class Sample ... ")
self.num=num
print("The value is:", num)
S=Sample(10)

What is the output of the following program?
class Greeting:
def ini
t(self, name):
self.name = name
def di
splay(self):
print("Good Morning ", self.name)
obj=Greeting ('Bindu Madhavan')
obj.display()

# program to calculate the sum of numbers 1 to 100
n = 100
sum = 0
for counter in range(1,n+1):
sum = sum + counter
print("Sum of 1 until %d: %d" % (n,sum))