Certified Ethical Hacker (CEH v12) — Question 118

During the enumeration phase, Lawrence performs banner grabbing to obtain information such as OS details and versions of services running. The service that he enumerated runs directly on TCP port 445.
Which of the following services is enumerated by Lawrence in this scenario?

Answer options

• A. Remote procedure call (RPC)
• B. Telnet
• C. Server Message Block (SMB)
• D. Network File System (NFS)

Correct answer: C

Explanation

The correct answer is C, Server Message Block (SMB), which is known to operate on TCP port 445. Option A, Remote procedure call (RPC), typically uses different ports, while B, Telnet, operates on port 23, and D, Network File System (NFS), usually utilizes port 2049, making them incorrect choices.