This set of Python Questions for campus interview focuses on “Functions”.
1. Python supports the creation of anonymous functions at runtime, using a construct called __________
a) lambda
b) pi
c) anonymous
d) none of the mentioned
View Answer
Explanation: Python supports the creation of anonymous functions (i.e. functions that are not bound to a name) at runtime, using a construct called lambda. Lambda functions are restricted to a single expression. They can be used wherever normal functions can be used.
2. What will be the output of the following Python code?
y = 6
z = lambda x: x * y
print z(8)
a) 48
b) 14
c) 64
d) None of the mentioned
View Answer
Explanation: The lambda keyword creates an anonymous function. The x is a parameter, that is passed to the lambda function. The parameter is followed by a colon character. The code next to the colon is the expression that is executed, when the lambda function is called. The lambda function is assigned to the z variable.
The lambda function is executed. The number 8 is passed to the anonymous function and it returns 48 as the result. Note that z is not a name for this function. It is only a variable to which the anonymous function was assigned.
3. What will be the output of the following Python code?
lamb = lambda x: x ** 3
print(lamb(5))
a) 15
b) 555
c) 125
d) None of the mentioned
View Answer
Explanation: None.
4. Does Lambda contains return statements?
a) True
b) False
View Answer
Explanation: lambda definition does not include a return statement. it always contains an expression which is returned. Also note that we can put a lambda definition anywhere a function is expected. We don’t have to assign it to a variable at all.
5. Lambda is a statement.
a) True
b) False
View Answer
Explanation: lambda is an anonymous function in Python. Hence this statement is false.
6. Lambda contains block of statements.
a) True
b) False
View Answer
Explanation: None.
7. What will be the output of the following Python code?
def f(x, y, z): return x + y + z
f(2, 30, 400)
a) 432
b) 24000
c) 430
d) No output
View Answer
Explanation: None.
8. What will be the output of the following Python code?
def writer():
title = 'Sir'
name = (lambda x:title + ' ' + x)
return name
who = writer()
print(who('Arthur'))
a) Arthur Sir
b) Sir Arthur
c) Arthur
d) None of the mentioned
View Answer
Explanation: None.
9. What will be the output of the following Python code?
L = [lambda x: x ** 2,
lambda x: x ** 3,
lambda x: x ** 4]
for f in L:
print(f(3))
a)
27 81 343
b)
6 9 12
c)
9 27 81
d) None of the mentioned
View Answer
Explanation: None.
10. What will be the output of the following Python code?
min = (lambda x, y: x if x < y else y)
min(101*99, 102*98)
a) 9997
b) 9999
c) 9996
d) None of the mentioned
View Answer
Explanation: None.
Sanfoundry Global Education & Learning Series – Python.
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