Dictionaries and Sets Interview Questions

Which of the following is a valid way to create a dictionary?

What will be the output?

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

What is the output?

d = {"x": 5}
print(d.get("y", 0))

Which of the following can be used as a dictionary key?

Which of the following correctly creates a set?

What will this code output?

s = {1, 2, 2, 3}
print(s)

What will be the output?

d = {"a": 1}
d["a"] = 5
print(d)

What is the output?

s1 = {1, 2}
s2 = {2, 3}
print(s1 | s2)

What will this code print?

s = {1, 2, 3}
print(4 in s)

What will this code output?

d = {"a": 1, "b": 2}
for key in d:
    print(key, end=" ")