Lesson 43 - Dictionary Datatype 1

Which of the following is not true ?

• set can have a element multiple times.

• tuple is mutable

• dictionary is set of key value pair

• All of the above

Which of the following way is used to add elements to the dictionary ?

• a['1']=30

• a['22.5']=40

• a['rohit']=25

• All of the above

which of the following statement is true ?

• Dictionary can have same value multiple times with unique keys

• Dictionary can have same key multiple times with unique values

• Dictionary is immutable in nature

• none

a={'rohit': 70, 'rahul': 100, 'rohan': 80}

From above dictioary 100 can be accessed by -

• a['rahul']

• a['1']

• a['rahul'] and a.get("rahul")

• none

What will be the output of following code ?

x={'rohit': 20, 'rahul': 25, 'rohan': 30}

for i in x:

print(i)

• rohit

  rahul

  rohan

• 20

  25

  30

• rohit:20

  rahul:25

  rohan:30

• none

What will be the output of the following code -

x={'rohit': 20, 'rahul': 25, 'rohan': 30}

for i in x.values():

print(i)

• rohit

  rahul

  rohan

• 20

  25

  30

• rohit 20

  rahul 25

  rohan 30

• none

What will be the output of the following code ?

x={'rohit': 20, 'rahul': 25, 'rohan': 30}

for x, y in x.items():

print(x, y)

• rohit

  rahul

  rohan

• 20

  25

  30

• rohit 20

  rahul 25

  rohan 30

• none

What will be the output of the following code ?

x="rohit"

y=list(x)

for i in range(len(x)):y[i]=x[(i+3)%len(x)]

s=""

for i in y:s+=i

print(s)

• tihor

• rohit

• itroh

• roiht

An empty set can be created by which of the following ways ?

• s={}

• s=set()

• s=()

• s=[]

What will be the output of the following code ?

a={"rohit":70,"rahul":75,"rounak":80}

print(a["notchup"])

• key error

• syntax error

• value error

• none