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Which TCP and UDP ports can be used to start a NULL session attack in NT and 2000 operating systems?
Correct Answer: C
Explanation/Reference: Explanation: A null session is an anonymous connection to a freely accessible network share called IPC$ on Windows- based servers. It allows immediate read and write access with Windows NT/2000 and read-access with Windows XP and 2003. The command to be inserted at the DOS-prompt is as follows: net use \\IP address_or_host name\ipc$ "" "/user:" net use Port numbers 139 TCP and 445 UDP can be used to start a NULL session attack.