Python Dictionaries Quiz – AICORR.COM

Dictionaries Quiz

Quiz Questions

1. How do you create an empty dictionary in Python?

a) dict = {}
b) dict = []
c) dict = ()
d) dict = ""

2. What is going to dict1 = {"identify": "Alice", "age": 25} return for dict1["name"]?

a) "Alice"
b) "age"
c) 25
d) Error

3. Which methodology is used to get all of the keys in a dictionary?

a) keys()
b) values()
c) objects()
d) get_keys()

4. What does the next code return?

my_dict = {"a": 1, "b": 2, "c": 3}
print(my_dict.get("d", 10))

a) None
b) 10
c) d
d) Error

5. How do you examine if a key exists in a dictionary?

a) "key" in dict
b) dict.has("key")
c) dict.accommodates("key")
d) dict.exists("key")

6. What does dict1.objects() return?

a) An inventory of dictionary values
b) An inventory of dictionary keys
c) An inventory of key-value pairs as tuples
d) A string of dictionary contents

7. How will you take away an merchandise from a dictionary utilizing a key?

a) dict.pop(key)
b) dict.take away(key)
c) dict.delete(key)
d) del dict.key

8. What occurs when you attempt to entry a non-existent key utilizing dict[key]?

a) It returns None
b) It raises a KeyError
c) It provides the important thing with a default worth
d) It creates a brand new dictionary

9. Which methodology removes all key-value pairs from a dictionary?

a) clear()
b) popitem()
c) take away()
d) del()

10. Can dictionary keys be mutable knowledge sorts (like lists)?

a) Sure
b) No

11. How do you merge two dictionaries in Python 3.9+?

a) dict1.replace(dict2)
b) dict3 = dict1 + dict2
c) dict3 = dict1 | dict2
d) dict1.append(dict2)

12. What does dict1.values() return?

a) Checklist of dictionary values
b) Checklist of dictionary keys
c) Checklist of key-value pairs
d) Error

13. What is going to dict1.popitem() do?

a) Take away a random key-value pair
b) Take away the final inserted key-value pair
c) Take away the primary inserted key-value pair
d) Elevate an error

14. What’s the output of this code?

my_dict = {1: "a", 2: "b", 3: "c"}
print(my_dict[1])

a) "a"
b) 1
c) None
d) Error

15. What occurs if we attempt to assign an inventory as a dictionary key?

a) The important thing-value pair is added efficiently
b) Python raises a TypeError
c) The listing is mechanically transformed to a tuple
d) The listing secret’s ignored

16. How do you copy a dictionary with out modifying the unique?

a) dict2 = dict1.copy()
b) dict2 = dict1
c) dict2 = dict(dict1)
d) Each a and c

17. What’s the right method to iterate over dictionary keys?

a) for key in dict.keys():
b) for key in dict:
c) for key, worth in dict.objects():
d) Each a and b

18. Can dictionary values be duplicated?

a) Sure
b) No

19. What is going to my_dict.setdefault("key", "worth") do if "key" doesn’t exist?

a) Add "key": "worth" to the dictionary
b) Elevate an error
c) Take away the prevailing key
d) Return "key" with out modifying the dictionary

20. What would be the output of the next code?

d = {"x": 10, "y": 20}
d["z"] = d["x"] + d["y"]
print(d)

a) {"x": 10, "y": 20, "z": 30}
b) {"x": 10, "y": 20, "z": 10}
c) {"x": 10, "y": 20}
d) Error