File Handling in Python

Which of the following statements correctly explain the function of tell() method?

• tells the current position within the file.

• tell the name of file.

• move the current file position to a different location.

• it changes the file position only if allowed to do so else returns an error.

Which of the following statements

correctly explain the function of seek() method?

• tell the current position within the file.

• indicate that the next read or write occurs from that position in a file.

• determine if you can move the file position or not.

• move the current file position to a different location at a defined offset.

Which of the following command is

used to open a file “c:\temp.txt” in read-mode only.

• infile = open(“c:\temp.txt”, “r”)

• infile = open(“c:\\temp.txt”, “r”)

• infile = open(file = “c:\temp.txt”, “r+”)

• infile = open(file = “c:\\temp.txt”, “r+”)

Which of the following command is used

to open a file “c:\temp.txt” in append-mode?

• outfile = open(“c:\\temp.txt”, “a+”)

• outfile = open(“c:\temp.txt”, “w+”)

• outfile = open(“c:\\temp.txt”, “r+”)

• outfile = open(“c:\\temp.txt”, “a”)

Which of the following commands can

be used to read “n” number of characters from a file using the file object <file>?

• file.read(n)

• n = file.read()

• file.readline(n)

• file.readlines()

Which of the following statements are

false regarding the opening modes of a file?

• When you open a file for reading, if the file does not exist, an error occurs.

• When you open a file for writing, if the file does not exist, an error occurs.

• When you open a file for reading, if the file does not exist, the program will open an empty file.

• When you open a file for writing, if the file does not exist, a new file is created.

• When you open a file for writing, if the file exists, the existing file is overwritten with the new file.

Consider the given code and complete the missing statement.

Which of the following function is used to write data in binary mode?

• write

• output

• dump

• send

Which of the following statements are true?

• A binary files store information in ASCII or Unicode character

• The default file open mode is write mode.

• In binary file there is no delimeter for a line.

• An absolute path always begins with the root folder

• Opening file in append mode erases previous data.

Unpickling is done by____________ function.