PCAP File I/O and String Operations

Question 1

Which built-in function is used to open a file in Python?

Accepted Answer

open()

Answer

file()

Answer

read()

Answer

load()

Question 2

What mode string opens a file for writing, creating it if it does not exist and truncating if it does?

Accepted Answer

'w'

Answer

'r'

Answer

'a'

Answer

'x'

Question 3

What does the `with` statement do when used with `open()`?

Accepted Answer

Automatically closes the file when the block exits

Answer

Opens the file in binary mode

Answer

Locks the file from other processes

Answer

Buffers writes

Question 4

Which method reads the entire file content as a single string?

Accepted Answer

read()

Answer

readline()

Answer

readlines()

Answer

fetch()

Question 5

What does `file.readlines()` return?

Accepted Answer

A list of strings, one per line

Answer

A single string

Answer

A generator of lines

Answer

A bytes object

Question 6

Which file mode opens a file for appending without truncating existing content?

Accepted Answer

'a'

Answer

'w'

Answer

'r+'

Answer

'x'