File Handling-MCQ

 

Q1. Which statement will read 5 characters from a file(file object ‘f’)?

a. f.read()
b. f.read(5)
c. f.reads(5)
d. None of the above

Ans. b. f.read(5)
Explain:-

 

Q2. Which function open file in python?

a. open( )
b. new( )
c. Open( )
d. None of the above

Ans. a. open( )
Explain:-

 

Q3. Processing of Text file is faster than binary files.(T/F)

a. True
b. False

Ans. b. False
Explain:-

 

Q4. Which mode create new file if the file does not exist?

a. write mode
b. append mode
c. Both of the above
d. None of the above

Ans. c. Both of the above
Explain:-

 

Q5. Which statement will return one line from a file (file object is ‘f’)?

a. f.readline( )
b. f.readlines( )
c. f.read( )
d. f.line( )

Ans. a. f.readline( )
Explain:-

 

Q6. Which symbol is used for append mode?

a. ap
b. a
c. w
d. app

Ans. b. a
Explain:-

 

Q7. Which of the following will read entire content of file(file object ‘f’)?

a. f.reads( )
b. f.read( )
c. f.read(all)
d. f.read( * )

Ans. b. f.read( )
Explain:-

 

Q8. Which function is used to read data from Text File?

a. read( )
b. writelines( )
c. pickle( )
d. dump( )

Ans. a. read( )
Explain:-

 

Q9. EOF stands for _________________

a. End of File
b. End off File
c. End on File
d. End or File

Ans. a. End of File
Explain:-

 

Q10. readlines() method return _________

a. String
b. List
c. Dictionary
d. Tuple

Ans. b. List
Explain:-

 

Q11. Which of the following options can be used to read the first line of a text file data.txt?

a. f = open(‘data.txt’); f.read()
b. f = open(‘data.txt’,’r’); f.read(n)
c. myfile = open(‘data.txt’); f.readline()
d. f = open(‘data.txt’); f.readlines()

Ans. c. myfile = open(‘data.txt’); f.readline()
Explain:-

 

Q12. File in python is treated as sequence of ________________

a. Bytes
b. Bites
c. bits
d. None of the above

Ans. a. Bytes
Explain:-

 

Q13. Which function is used to write data in binary mode?

a. write
b. writelines
c. pickle
d. dump

Ans. d. dump
Explain:-

 

Q14. Which function is used to force transfer of data from buffer to file?

a. flush( )
b. save( )
c. move( )
d. None of the above

Ans. a. flush( )
Explain:-

 

Q15. Let the file pointer is at the end of 3rd line in a text file named “data.txt”. Which of the following option can be used to read all the remaining lines?

a. f.read( )
b. f.read(all)
c. f.readline( )
d. f.readlines( )

Ans. d. f.readlines( )
Explain:-

 

Q16. Which statement will open file “data.txt” in append mode?

a. f = open(“data.txt” , “a”)
b. f = Open(“data.txt” , “ab”)
c. f = new(“data.txt” , “a”)
d. open(“data.txt” , “a”)

Ans. a. f = open(“data.txt” , “a”)
Explain:-

 

Q17. What is full form of CSV

a. Comma Separation Value
b. Comma Separated Value
c. Common Syntax Value
d. Comma Separated Variable

Ans. b. Comma Separated Value
Explain:-

 

Q18. What is ‘f’ in the following statement?
f=open("Data.txt" , "r")

a. File Name
b. File Handle
c. Mode of file
d. File Handling

Ans. b. File Handle
Explain:-

 

Q19. readlines( ) function returns all the words of the file in the form of List. (T/F)
f=open("Data.txt" , "r")

a. True
b. False

Ans. b. False
Explain:-

 

Q20. Which of the following is an invalid mode of file opening?
f=open("Data.txt" , "r")

a. read only mode
b. write only mode
c. read and write mode
d. write and append mode

Ans. d. write and append mode
Explain:-

 

Q21. Identify the invalid mode from the following.
f=open("Data.txt" , "r")

a. a
b. r+
c. ar+
d. w

Ans. c. ar+
Explain:-

 

Q22. The syntax of seek() is: file_object.seek(offset [, reference_point])
What is reference_point indicate?
f=open("Data.txt" , "r")

a. reference_point indicates the starting position of the file object
b. reference_point indicates the ending position of the file object
c. reference_point indicates the current position of the file object
d. None of the above.

Ans. a. reference_point indicates the starting position of the file object
Explain:-

 

Q23. ______________ function returns the strings.)

a. read( )
b. readline( )
c. Both of the above
d. None of the above

Ans. c. Both of the above
Explain:-

 

Q24. Which of the following error is returned when we try to open a file in write mode which does not exist?

a. FileNotFoundError
b. FileFoundError
c. FileNotExistError
d. None of the above

Ans. d. None of the above
Explain:-

 

Q25. ____________________ module is used for serializing and de-serializing any Python object structure.

a. pickle
b. unpickle
c. pandas
d. math

Ans. a. pickle
Explain:-