Which of the following will raise an error if the given dictionary is empty ?

1. del statement
2. pop( )
3. popitem( )
4. all of these

A copy of the dictionary where only the copy of the keys is created for the new dictionary, is called …………… copy.

1. key copy
2. shallow copy
3. deep copy
4. partial copy

Which of the following is correct with respect to above Python code ?

d = {"a" : 3,"b" : 7}

1. a dictionary d is created.
2. a and b are the keys of dictionary d.
3. 3 and 7 are the values of dictionary d.
4. All of these.

What would the following code print ?

d = {'spring':'autumn','autumn':'fall','fall':'spring'}
print(d['autumn'])

1. autumn
2. fall
3. spring
4. Error