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A Learning Portal from Recruitment India
A Learning Portal from Recruitment India
What is the biggest reason for the use of polymorphism?
It allows the programmer to think at a more abstract level
There is less program code to write
The program will have a more elegant design and will be easier to maintain and update
Program code takes up less space
Answer with explanation
Answer: Option CExplanation
Polymorphism allows for the implementation of elegant software.
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Which of the following is false about protected class members?
They begin with one underscore
They can be accessed by subclasses
They can be accessed within a class
They can be accessed by name mangling method
Answer with explanation
Answer: Option DExplanation
Protected class members can’t be accessed by name mangling
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To read the entire remaining contents of the file as a string from a file object infile, we use ____________
infile.read(2)
infile.read()
infile.readline()
infile.readlines()
Answer with explanation
Answer: Option BExplanation
read function is used to read all the lines in a file.
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What will be the output of the following Python code?
def c(f):
def inner(*args, **kargs):
inner.co += 1
return f(*args, **kargs)
inner.co = 0
return inner
@c
def fnc():
pass
if __name__ == ‘__main__’:
fnc()
fnc()
fnc()
print(fnc.co)
4
3
1
Answer with explanation
Answer: Option BExplanation
The code shown above returns the number of times a given function has been called. Hence the output of this code is: 3
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The formatting method {1:<10} represents the ___________ positional argument, _________ justified in a 10 character wide field.
second, right
first, left
second, left
first, right
Answer with explanation
Answer: Option CExplanation
The formatting method {1:<10} represents the second positional argument, left justified in a 10 character wide field.
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