Shravanne Quiz

Pickling process in python includes what ?

• Converts a list to a data table

• Converts data table to list

• Converts a byte stream into python object hierarchy

• Converts python object hierarchy into a byte stream

Write output of following code

'4'==4

• Value error occurs

• True

• False

• Type error occurs

Which order of precedence is correct in python ?

• Exponential, Parenthesis, Multiplication, Division, Addition, Subtraction

• Division, Multiplication, Addition, Subtraction, Parenthesis, Exponential,

• Parenthesis, Exponential, Multiplication, Division, Addition, Subtraction

• Exponential, Multiplication, Division, Addition, Subtraction, Parenthesis

What is the output of the following code ?

print("Good{0!r}and{0!s}".format('Morning','bin'))

• Good 'Morning' and Morning

• Value error

• Good Morning and Morning

• Good Morning and 'Morning'

What is the output of the following code ?

P={1:{'A':{1:"A"},2:"B"},3:"C",'B':"P","P":'E'}

print(P[P[P[1][2]]],end=" ")

print(P[P[1]["A"][2]])

• PC

• E KeyError

• EB

• PB

Tick the most accurate statement for the declaration X=Circle()

• You can assign int value to x

• x contains an object of Circle type

• x contains a reference to a Circle object

• None of these

To check whether an object "obj" is an instance of class A or not, which of the following statement can be used ?

• obj.isinstance(A)

• A.isinstance(obj)

• isinstance(obj,A)

• isinstance(A,obj)

What is the output of the following code ?

P = {1:[1,2,3], 2:(4,6,8)}

P[1].append(4)

print(P[1], end = " ")

L = list(P[2])

L.append(10)

P[2]=tuple(L)

print(P[2])

• [1,2,3,4][4,6,8,10]

• [1,2,3,4](4,6,8,10)

• [1,2,3](4,6,8)

• [1,2,3,4] TypeError: tuples are immutable

What is the output of following code ?

D= dict()

for x in enumerate(range(2)):

D[x[0]]=x[1]

D[x[1]+7]=x[0]

print(D)

• KeyError

• {0:1,7:0,1:1,8:0}

• {0:0,7:0,1:1,8:1}

• {1:1,7:2,0:1,8:1}

In which one of the following dimensionality reduction reduces

• Performance

• Stochastics

• Entropy

• Collinearity