Problem Solving And Python Programming Set 35

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This set of Problem Solving and Python Programming Multiple Choice Questions & Answers (MCQs) focuses on Problem Solving And Python Programming Set 35

Q1 | Which of the following are the modes of both writing and reading in binary format in file?

wb+

Q2 | Which of the following is not a valid mode to open a file?

Q3 | What is the difference between r+ and w+ modes?

no difference

in r+ the pointer is initially placed at the beginning of the file and the pointer is at the end for w+

in w+ the pointer is initially placed at the beginning of the file and the pointer is at the end for r+

depends on the operating system

Q4 | How do you get the name of a file from a file object (fp)?

fp.name

fp.file(name)

self. name (fp)

fp. name ()

Q5 | Which of the following is not a valid attribute of a file object (fp)?

fp.name

fp.closed

fp.mode

fp.size

Q6 | How do you close a file object (fp)?

close(fp)

fclose(fp)

fp.close()

fp. close ()

Q7 | How do you get the current position within the file?

fp.seek()

fp.tell()

fp.loc

fp.pos

Q8 | How do you rename a file?

fp.name = ‘new_name.txt’

os.rename(existing_name, new_name)

os.rename(fp, new_name)

os.set_name(existing_name, new_name)

Q9 | How do you delete a file?

del(fp)

fp.delete()

os.remove(‘file’)

os.delete(‘file’)

Q10 | How do you change the file position to an offset value from the start?

fp.seek(offset, 0)

fp.seek(offset, 1)

fp.seek(offset, 2)

none of the mentioned

Q11 | What happens if no arguments are passed to the seek function?

file position is set to the start of file

file position is set to the end of file

file position remains unchanged

error

Q12 | Which function overloads the + operator?

add ()

plus ()

sum ()

none of the mentioned

Q13 | Which function overloads the == operator?

eq ()

equ ()

isequal ()

none of the mentioned

Q14 | Which operator is overloaded by lg ()?

none of the mentioned

Q15 | Which function overloads the >> operator?

more ()

gt ()

ge ()

none of the mentioned

Q16 | Let A and B be objects of class Foo. Which functions are called when print(A + B) is executed?

add (), str ()

str (), add ()

sum (), str ()

str (), sum ()

Q17 | Which function overloads the // operator?

div ()

ceildiv ()

floordiv ()

truediv ()

Q18 | How many except statements can a try- except block have?

zero

one

more than one

more than zero

Q19 | When is the finally block executed?

when there is no exception

when there is an exception

only if some condition that has been specified is satisfied

always

Q20 | k = foo() print(k)

error, there is more than one return statement in a single try-finally block

Q21 | What happens when ‘1’ == 1 is executed?

we get a true

we get a false

an typeerror occurs

a valueerror occurs

Q22 | g=f(8) print(next(g))

error

Q23 | Which of the following is not an exception handling keyword in Python?

try

except

finally

Q24 | )) type(g)

class <’loop’>

class <‘iteration’>

class <’range’>

class <’generator’>

Q25 | ]

nameerror

valueerror

indexerror

typeerror

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