File Handling (1 Mark Questions)

1. What is the output of the following code?

   f = None
   for i in range (5):
       with open("data.txt", "w") as f:
           if i > 2:
               break
   print(f.closed)
   a) True    b) False    c) None    d) Error
   



2. To open a file c:\books.txt for reading, we use:

   a) infile = open("c:\books.txt", "r")   
   b) infile = open("c:\\books.txt", "r")
   c) infile = open(file = "c:\books.txt", "r")  
   d) infile = open(file = "c:\\books.txt", "r")
   



3. Write a statement in Python to perform the following operations :
1. To open a text file “BOOK.TXT” in read mode
2. To open a text file “BOOK.TXT” in write mode


4. Which of the following File Modes creates a new file, if the file does not exist? (choose one/more)
• 'r'
• 'bw'
• 'w'
• 'a'


5. In which of the following mode the existing data of the file will not be lost?(choose one/more)
• 'rb'
• 'wb'
• 'w+'
• 'r+'


6. In which of the following file modes the existing data of the file will not be lost?
   rb, ab, w, w+b, a+b, wb, wb+, w+, r+
7. What will the output of the following code :

   1 2 3

   f1 = open("test1.txt","r") size = len(f1.read()) print(f1.read(5))

8. Differentiate between r+ and w+ with respect to Python file handling.