Class 11 Computer Science Chapter-1 Questions and Answers

 

Answers of Question Bank

Class XI

Computer Science

(Book Reference : Sumita Arora)

 

Chapter – 1: GETTING STARTED WITH PYTHON

Very Short answer Type Questions Q.1     When was Python released?

Ans- Python was released in February 1991.

Q.2     Who developed Python?

Ans- Python was developed by Guido Van Rossum.

Q.3      Which two languages contributed to Python as a Programming Language?

Ans- ABC language and Modula 3.

Q.4               Is Python an Object Oriented Language?

      Ans- Yes, Python is an object oriented language.

Q.5 Python got its name from which show?

  Ans- Python got its name from famous BBC comedy show “Monty Python’s Flying Circus”.

Short Answer Type Questions 

Q.1     „Python is an interpreted language‟. What does it mean to you?

  Ans- It means that the Python installation interprets and executes the code line by line at a time.

Q.2    What does a cross platform language mean?

Ans- it means a language can run equally on variety of platforms-Windows, Linux/UNIX, Macintosh, Supercomputers, Smart phones etc.  Q.3 Python is a Free and Open Source language. What do you understand by this feature?

          Ans- It means Python is freely available without any cost. Its source code is also available. One can modify, improve/extend an open source software.

Q.4      In how many ways, can you work in Python?

          Ans-In two ways we can work in Python- 

(i) Interactive mode (ii) Script Mode

Q.5              What is the difference between Interactive mode and Script Mode in Python?

Ans- In interactive mode, one command can run at a time and commands are not saved. Whereas in Script       

mode, we can save all the commands in the form of a program file and can see output of all lines together.

Q.6     What are the advantages of Python?

          Ans- Advantages-

               i. Easy to use OO Language. ii. Expressive Language. iii. Interpreted Language.

iv.  It is complete.

v.    Cross-Platform Language. vi. Free and Open Source.

vii. Variety of Usage/ Applications

 

Q.7     What are the limitations of Python?

          Ans-  limitations-

i.  Not the fastest language.

ii.       Lesser Libraries than C, Java, Perl. iii. Not strong on Type Binding.

iv. Not easily convertible.

Skill Based Questions

Q.1       Which of the following are not valid strings in Python?

   (a)‖Hello‖  (b) ‗Hello‘   (c)‖Hello‘    (d) ‗Hello‖    (e) {Hello}

Ans- String (c) , (d) and (e ) are not valid strings.

Q.2     Write Instructions in python to get the following result: (Do it in both interactive mode and script mode)

           I am a student of KV Barabanki

           I live in Barabanki

           And I love Barabanki.

      Barabanki is 20 KM away from Lucknow

           This Place is famous for Dewa Sharif

Ans- In Interactive Mode-

>>> print("I am a student of KV Barabanki \nI live in Barabanki \nAnd I love Barabanki\n\n Barabanki is 20

KM away from Lucknow\n This Place is famous for Dewa Sharif") In Script Mode- print("I am a student of KV Barabanki \n I live in Barabanki \nAnd I love Barabanki\n\n Barabanki is 20 KM away from Lucknow\n This Place is famous for Dewa Sharif") (save this code to a file and then run the file)