QUIZ ON : python - FILE PROCESSING IN PYTHON

FILE PROCESSING IN PYTHON

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Question No# : 01 out of 50

The syntax of seek() is: file_object.seek(offset [, reference_point]) What does the reference_point indicate?

A. reference_point indicates the current position of the file object

B. reference_point indicates the starting position of the file object

C. reference_point indicates the ending position of the file object

D. None of the above

Question No# : 02 out of 50

What will be the output of the following code ?<pre>f=open("demo.txt","w+") f.write("Welcome to python") f.seek(5) a=f.read(5) print(a)</pre>

A. Welco

B. me to

C. Welcome to Python

D. e to

Question No# : 03 out of 50

Which of the function take takes two arguments?

A. dump()

B. load()

C. Both A and B

D. None of the above

Question No# : 04 out of 50

Which denotes file binary mode?

A. r

B. rb

C. w

D. r+

Question No# : 05 out of 50

How can you close a file in Python after processing?

A. close_file()

B. file_close()

C. close()

D. end_file()

Question No# : 06 out of 50

What keyword is used in Python to raise exceptions?

A. raise

B. goto

C. try

D. except

Question No# : 07 out of 50

Which function is used to read all the characters from file?

A. readall()

B. read()

C. readcharacter()

D. readchar()

Question No# : 08 out of 50

Which of the following functions is used to open a file in Python?

A. open_file()

B. file_open()

C. open()

D. read_file()

Question No# : 09 out of 50

How can you write data to a file in Python?

A. write()

B. append()

C. add()

D. insert()

Question No# : 10 out of 50

What is the use of seek() method in files?

A. sets the file's current position at the offset

B. sets the file's previous position at the offset

C. sets the file's current position within the file

D. None of these

Question No# : 11 out of 50

Which of the following is not a correct mode to open a file ?

A. ab

B. rw

C. a+

D. r+

Question No# : 12 out of 50

Which method is used to read the entire content of a file as a string in Python?

A. read()

B. readline()

C. readlines()

D. load()

Question No# : 13 out of 50

Which of the following mode will refer to binary data?

A. r

B. w

C. +

D. b

Question No# : 14 out of 50

Which module in Python provides functions for file and directory manipulation?

A. os

B. fileutils

C. filesystem

D. io

Question No# : 15 out of 50

Which of the following is used to define a block of code in Python language ?

A. try

B. Brackets

C. Indentation

D. Catch

Question No# : 16 out of 50

what is 'f' in the following statement?<pre>f=open("Data.txt","r")</pre>

A. file name

B. file handle

C. Mode of file

D. file handling

Question No# : 17 out of 50

Which of the following statements is used to check if a file exists in Python?

A. file_exists()

B. exists_file()

C. os.path.exists()

D. check_file()

Question No# : 18 out of 50

In which format Binary file contains information?

A. Quick response code

B. Same format in which the data is held in memory

C. ASCII format

D. Unicode format

Question No# : 19 out of 50

In which format python file considered

A. giga bytes

B. mega bytes

C. byte

D. bits

Question No# : 20 out of 50

Which of the following declarations is incorrect?

A. _x=2

B. x=3

C. _xyz_=5

D. None of these

Question No# : 21 out of 50

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")

Question No# : 22 out of 50

What is the default mode for files in Python?

A. Write

B. Read

C. Append

D. Read and Write Both

Question No# : 23 out of 50

What happens if file opened in write mode already exists?

A. Data is appended

B. Error occurs

C. Old content is erased

D. Nothing happens

Question No# : 24 out of 50

What is the pickling?

A. It is used for object serialization

B. It is used for object deserialization

C. All of the mentioned

D. None of the mentioned

Question No# : 25 out of 50

Which one is not the attribute of a file ?

A. softspace

B. mode

C. closed

D. rename

Question No# : 26 out of 50

Identify the correct function call to read first 5 character of the file from the beginning

A. f.read(5)

B. f.read()=5

C. f.readline(5)

D. f.readlines(5)

Question No# : 27 out of 50

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( *)

Question No# : 28 out of 50

What will be the output of : infile.read(2)

A. Read two words from file

B. Read two line from file

C. Read two character / two bytes

D. count the number of '2' in file

Question No# : 29 out of 50

If we open a file in write mode and file does not exists, which of the error will generate?

A. File Found Error

B. File Not Exist Error

C. File Not Found Error

D. None of these

Question No# : 30 out of 50

Which function tells the current file position?

A. seek()

B. read()

C. close()

D. tell()

Question No# : 31 out of 50

The function which reads one line from standards input and returns it as a string (removing the trailing newline)

A. raw_input

B. input

C. eval

D. accept

Question No# : 32 out of 50

f.read(5) will read________from a file (file object 'f')

A. 5 characters

B. 5 words

C. 5 lines

D. None of the above

Question No# : 33 out of 50

What is the current syntax of remove a file?

A. remove((), file_name))

B. remove (new_file_name, current_file_name,)

C. remove (file_name)

D. All of the above

Question No# : 34 out of 50

What is full form of CSV?

A. Comma Space Value

B. Comma Separated Value

C. Common spaced Value

D. Compact Structure View

Question No# : 35 out of 50

Which module is commonly used for command line arguments?

A. random

B. sys

C. math

D. os

Question No# : 36 out of 50

to use load() function for working with binary file in python which module is require

A. pickle

B. binary

C. unpickle

D. fstream

Question No# : 37 out of 50

What will be the output?<pre>f = open("test.txt", "w") f.write("Python") f.seek(0) print(f.read())</pre>

A. Python

B. Empty String

C. UnsupportedOperation Error

D. None

Question No# : 38 out of 50

What will be written to the file?<pre>f = open("test.txt", "w") f.write("ABC") f.write("DEF") f.close()</pre>

A. ABC

B. DEF

C. ABCDEF

D. Error

Question No# : 39 out of 50

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

A. File Found Error

B. File Not Exist Error

C. File Not Found Error

D. None of the above

Question No# : 40 out of 50

Which function returns the strings?

A. readlines()

B. read()

C. Both of the above

D. None of the above

Question No# : 41 out of 50

in python which function is used to read CSV file

A. csv.reader(file)

B. csv.read(file)

C. csv.readcsv(file)

D. csv.readcsvdata(file)

Question No# : 42 out of 50

Which mode creates a file if it does not exist?

A. w

B. rb

C. rt

D. r

Question No# : 43 out of 50

A Function used for writing data in the binary format :

A. write

B. output

C. send

D. dump

Question No# : 44 out of 50

Which of the following is an invalid mode?

A. a

B. ar+

C. r+

D. w

Question No# : 45 out of 50

Hierarchy in a pseudo-code can be shown by:

A. Curly Braces

B. Round Brackets

C. Indentation

D. Semicolon

Question No# : 46 out of 50

What happens if the file does not exist?<pre>f = open("abc.txt", "r")</pre>

A. New file is created

B. FileNotFoundError

C. Returns None

D. Opens empty file

Question No# : 47 out of 50

What is the output?<pre>f = open("test.txt", "w") f.write("Python") print(f.tell()) f.close()</pre>

A. 5

B. 6

C. 7

D. 0

Question No# : 48 out of 50

What does EOF stand for?

A. End Of Folder

B. Exit Open File

C. End Of File

D. Error On File

Question No# : 49 out of 50

When we open file in append mode the file pointer is at the ______ of the file.

A. end

B. beginning

C. anywhere in between the file

D. None of the above

Question No# : 50 out of 50

Which is the function to read the remaining lines of the file from a file object infile?

A. infile.read(2)

B. infile.read()

C. infile.readlines()

D. infile.readline()