Computer Science - Informatics Practices Class XI/XII Python Dictionary Solved Test  Part 3

Q1. Can we add new values in an existing dictionary?
Q2. Write a code to add the following key-value to a given dictionary.

    a = {'Class':'VI','Sec':'B','Rollno' : 1}

    

        

Q3. Can we do modification in existing key value pair?

Q4. Write the code to change the class of given

dictionary to 'VII'

a = {'Class':'VI','Sec':'B','Rollno' : 1}

Q5. What do you mean by update() in context of

dictionary in python

   

Q6. What is the difference between del command and pop() 

     function in dictionaries?

Q7. Write the output of the following:

    a = {'Class':'VI','Sec':'B','Rollno' : 1}

    print('Class' in a)

    print('sec' in a)

Q8. Can there be any dictionary without key or

without value?if yes then give example.

Q9. Which function return the count of

    key-value pairs in the given dictionary.

Q10. Which function removes all the items from

    dictionary?