Problem Solving And Python Programming Set 17

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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 17

Q1 | Which function is used to read all the characters?

read()

readcharacters()

readall()

readchar()

Q2 | Which function is used to read single line from file?

readline()

readlines()

readstatement()

readfullline()

Q3 | Which function is used to write all the characters?

write()

writecharacters()

writeall()

writechar()

Q4 | Which function is used to write a list of string in a file?

writeline()

writelines()

writestatement()

writefullline()

Q5 | Which function is used to close a file in python?

close()

stop()

end()

closefile()

Q6 | Is it possible to create a text file in python?

yes

machine dependent

all of the mentioned

Q7 | Which of the following are the modes of both writing and reading in binary format in file?

wb+

Q8 | Which of the following is not a valid mode to open a file?

Q9 | 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

Q10 | How do you get the name of a file from a file object (fp)?

fp.name

fp.file(name)

self. name (fp)

fp. name ()

Q11 | Which of the following is not a valid attribute of a file object (fp)?

fp.name

fp.closed

fp.mode

fp.size

Q12 | How do you close a file object (fp)?

close(fp)

fclose(fp)

fp.close()

fp. close ()

Q13 | How do you get the current position within the file?

fp.seek()

fp.tell()

fp.loc

fp.pos

Q14 | 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)

Q15 | How do you delete a file?

del(fp)

fp.delete()

os.remove(‘file’)

os.delete(‘file’)

Q16 | 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

Q17 | 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

Q18 | Which function overloads the + operator?

add ()

plus ()

sum ()

none of the mentioned

Q19 | Which function overloads the == operator?

eq ()

equ ()

isequal ()

none of the mentioned

Q20 | Which operator is overloaded by lg ()?

none of the mentioned

Q21 | Which function overloads the >> operator?

more ()

gt ()

ge ()

none of the mentioned

Q22 | 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 ()

Q23 | Which function overloads the // operator?

div ()

ceildiv ()

floordiv ()

truediv ()

Q24 | How many except statements can a try- except block have?

zero

one

more than one

more than zero

Q25 | 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

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