File Handling

___________ is a process of storing data into files and allows to performs various tasks such as read, write, append, search and modify in files.

Answer explanation

File Handling is the correct choice as it refers to the process of storing data in files and performing operations like reading, writing, appending, searching, and modifying data within those files.

To close a file in a program _______ function is used.

Answer explanation

The correct function to close a file in a program is close(). This function is essential for releasing the resources associated with the file, ensuring that all data is properly saved and the file is no longer in use.

What does this code myfile=open(“taxes.txt”) perform

• opens the taxes.txt in default read mode.

• opens the taxes.txt in default write mode.

• opens the taxes.txt in default append mode.

• opens the taxes.txt in default read and write mode.

Answer explanation

The code myfile=open("taxes.txt") opens the file 'taxes.txt' in the default read mode, which allows the program to read the contents of the file. Therefore, the correct choice is that it opens the taxes.txt in default read mode.

Mode in the following program to open file for writing in a mode where new data will be added at the end of old data

file =open("poem.txt","__")

• r

• w

• a

• r+

Answer explanation

The correct mode to open a file for writing where new data is added at the end of existing data is 'a' (append mode). This allows you to add content without deleting the old data, unlike 'w' which overwrites it.

Choose the correct statement to close a file stream named myfile:

• myfile.terminate()

• myfile.end()

• myfile.close()

• myfile.remove()

Answer explanation

The correct statement to close a file stream is 'myfile.close()'. This method properly releases the resources associated with the file, ensuring that all data is written and the file is no longer in use.

What will be the output-

f=open('abc.txt','a')

text="xyz"

f.write(text)

f.close()

• Writing into the file without erasing old content

• Writing into the file by erasing old content

• reading from the file without erasing old content

• reading from the file by erasing old content

Answer explanation

The code opens 'abc.txt' in append mode ('a'), which allows writing new content without erasing existing content. Therefore, the correct choice is 'Writing into the file without erasing old content'.

What is the use of “a” in file handling?

• Read

• Write

• Append

• None of the mentioned

Answer explanation

In file handling, the mode 'a' is used to append data to the end of a file without overwriting existing content. This makes 'Append' the correct choice, as it specifically indicates adding new data to a file.

What is the data type of data read from a file?

• String

• Integer

• Real

• Boolean

Answer explanation

Data read from a file is typically in the form of a String. This is because files store data as sequences of characters, which are interpreted as strings when read into a program.

Opening a file with write access causes the contents of the file to removed first.

• True

• False

Answer explanation

True. When a file is opened with write access, it truncates the file, removing its existing contents. This is standard behavior in many programming languages, ensuring that the file starts empty for new data.

What will be the ouput -

f=open('abc.txt','w')

x=f.read()

f.close()

print(x)

• Error(not readable)

• Error(not writable)

• It will read all the data of the file.

• none

Answer explanation

The code attempts to read from a file opened in write mode ('w'). Since the file is not opened for reading, it raises an error indicating that the file is not readable. Thus, the correct answer is 'Error(not readable)'.