Science (English Medium) Class 11 - CBSE Question Bank Solutions for Computer Science (Python)

Input a string having some digits. Write a function to return the sum of digits present in this string.

Consider a list:

list1 = [6, 7, 8, 9]

What is the difference between the following operation on the list1:

list1 * 2

Consider a list:

list1 = [6, 7, 8, 9]

What is the difference between the following operation on the list1:

list1 *= 2

Consider a list:

list1 = [6, 7, 8, 9]

What is the difference between the following operation on the list1:

list1 = list1 * 2

Consider the following tuples, tuple1 and tuple2:

tuple1 = (23,1,45,67,45,9,55,45)
tuple2 = (100,200)

Find the output of the following statement:

print(tuple1 + tuple2)

Consider the following dictionary stateCapital:

stateCapital = {"AndhraPradesh":"Hyderabad",
"Bihar":"Patna","Maharashtra":"Mumbai",
"Rajasthan":"Jaipur"}

Find the output of the following statement:

print("Maharashtra" in stateCapital)

You are planning to go on a vacation. You surfed the Internet to get answers to the following queries:

1. Weather conditions
2. Availability of air tickets and fares
3. Places to visit
4. Best hotel deals

Write the difference between the following -

Active and Passive footprints

What is the need for RAM?

What is the need for secondary memory?

How does RAM differ from ROM?

Check the size of the RAM and HDD of a computer in your school. Make a table and write their size in Bytes, Kilobytes, Megabytes, and Gigabytes.

List all secondary storage devices available at your school or home.

Give full form of ISCII.

Explain the following along with their applications.

Machine Learning

Two friends decide who gets the last slice of a cake by flipping a coin five times. The first person to win three flips wins the cake. An input of 1 means player 1 wins a flip, and a 2 means player 2 wins a flip. Design an algorithm to determine who takes the cake.

Suppose you are collecting money for something. You need ₹ 200 in all. You ask your parents, uncles, and aunts as well as grandparents. Different people may give either ₹ 10, ₹ 20, or even ₹ 50. You will collect till the total becomes 200. Write the algorithm.

Write an algorithm to find the greatest among two different numbers entered by the user.

Consider the following string mySubject:

mySubject = "Computer Science"

What will be the output of the following string operation:

print(mySubject[:3] + mySubject[3:])

Consider the following string mySubject:

mySubject = "Computer Science"

What will be the output of the following string operation:

print(mySubject[:: -2])