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

Prove with the help of an example that the variable is rebuilt in case of immutable data types.

TypeError occurs while statement 2 is running. Give reason. How can it be corrected?

>>> tuple1 = (5)         #statement 1
 >>> len(tuple1)         #statement 2

Write a program to read the email IDs of n number of students and store them in a tuple. Create two new tuples, one to store only the usernames from the email IDs and the second to store domain names from the email IDs. Print all three tuples at the end of the program. [Hint: You may use the function split()]

Write a program to input the names of n students and store them in a tuple. Also, input a name from the user and find if this student is present in the tuple or not. We can accomplish these by:

writing a user-defined function

A bank is a financial institution that is involved in borrowing and lending money. With advancements in technology, online banking, also known as internet banking allows customers of a bank to conduct a range of financial transactions through the bank’s website anytime, anywhere. As part of the initial investigation, you are suggested to

• collect a bank application form. After careful analysis of the form, identify the information required for opening a savings account. Also, enquire about the rate of interest offered for a saving account.
• The basic two operations performed on an account are Deposit and Withdrawal. Write a menu-driven program that accepts either of the two choices of Deposit and Withdrawal, then accepts an amount, performs the transaction, and accordingly displays the balance. Remember, every bank has a requirement for a minimum balance which needs to be taken care of during withdrawal operations. Enquire about the minimum balance required in your bank.
• Collect the interest rates for opening a fixed deposit in various slabs in a savings bank account. Remember, rates may be different for senior citizens.

Finally, write a menu-driven program having the following options (use functions and appropriate data types):

• Open a savings bank account
• Deposit money
• Withdraw money
• Take details, such as the amount and period for a Fixed Deposit, and display its maturity amount for a particular customer.

Participating in a quiz can be fun as it provides a competitive element. Some educational institutes use it as a tool to measure the knowledge level, abilities, and/or skills of their pupils either on a general level or in a specific field of study. Identify and analyze popular quiz shows and write a Python program to create a quiz that should also contain the following functionalities besides the one identified by you as a result of your analysis.

• Create an administrative user ID and password to categorically add, modify, or delete a question.
• Register the student before allowing her or him to play a quiz.
• Allow selection of category based on the subject area.
• Display questions as per the chosen category.
• Keep the score as the participant plays.
• Display the final score.

Our heritage monuments are our assets. They are a reflection of our rich and glorious past and an inspiration for our future. UNESCO has identified some Indian heritage sites as World heritage sites. Collect the following information about these sites:

• What is the name of the site?
• Where is it located?
  District
  State
• When was it built?
• Who built it?
• Why was it built?
• The website link (if any).

Write a Python program to

• create an administrative user ID and password to add, modify or delete an entered heritage site in the list of sites.
• display the list of world heritage sites in India.
• search and display information about a world heritage site entered by the user.
• display the name(s) of world heritage site(s) on the basis of the state input by the user.

Give the full form of ASCII.  

How does a computer understand the following text?

(hint: 7-bit ASCII code).

HOTS

How does a computer understand the following text?

(hint: 7-bit ASCII code).

Main

How does a computer understand the following text?

(hint: 7-bit ASCII code).

CaSe

Encode the word ‘COMPUTER’ using ASCII and convert the encoded value into binary values.

Explain the following along with their applications.

Artificial Intelligence

What is the difference between the else and elif construct of the if statement?

Write a program that takes the name and age of the user as input and displays a message about whether the user is eligible to apply for a driving license or not. (the eligible age is 18 years).

Write a program to check if the year entered by the user is a leap year or not.

Write a program to find the grade of a student when grades are allocated as given in the table below.

The percentage of the marks obtained by the student is input into the program.

Consider the following string mySubject:

mySubject = "Computer Science"

What will be the output of the following string operation:

print(mySubject[0: len(mySubject)])

Consider the following string mySubject:

mySubject = "Computer Science"

What will be the output of the following string operation:

print(mySubject[-7: -1])

Consider the following string mySubject:

mySubject = "Computer Science"

What will be the output of the following string operation:

print(mySubject[::2])