To open a file c:\test.txt for appending data, we can give the statement:

1. fobj = open("c:\\test.txt", "a")
2. fobj = open("c:\\test.txt", "rw")
3. fobj = open(file = "c:\test.txt", "w")
4. fobj = open(file = "c:\\test.txt", "w")

Which of the following statements is/are true?

1. When we open a file for reading, if the file does not exist, an error occurs.
2. When we open a file for writing, if the file does not exist, a new file is created.
3. When we open a file for writing, if the file exists, the existing file is overwritten with the new file.
4. All of these.

To read the entire contents of the file as a string from a file object fobj, the command should be:

1. fobj.read(2)
2. fobj.read()
3. fobj.readline()
4. fobj.readlines()

What will be the output of the following snippet?

f = None
for i in range(5):
    with open("data.txt", "w") as f:
       if i > 2:
        break
print(f.closed)

1. True
2. False
3. None
4. Error