MCQs for Python Dictionaries: Exam-Style Practice

>>> a={i: i*i for i in range(6)}
>>> a

a = {}
a[1] = 1
a['1'] = 2
a[1.0]=4
count = 0
for i in a:
    count += a[i]
print(count)

d = {"john":40, "peter":45}
"john" in d

total={}
def insert(items):
    if items in total:
        total[items] += 1
    else:
        total[items] = 1
insert('Apple')
insert('Ball')
insert('Apple')
print (len(total))

d = {"john":40, "peter":45}
d["john"]

a={1:"A",2:"B",3:"C"}
print(a.get(5,4))

a={1:"A",2:"B",3:"C"}
print(a.setdefault(3))