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GCIH · Question #648

Observe the following command; what is the analyst doing?

The correct answer is C. Determining what services are running on 192.168.230.138. The command shown performs a service and version enumeration scan against a target host, a core step in network reconnaissance.

Reconnaissance, Scanning, and Enumeration

Question

Observe the following command; what is the analyst doing?

Options

  • AConnecting to an SMB share on 192.168.230.138
  • BListing active network connections to 192.168.230.138
  • CDetermining what services are running on 192.168.230.138
  • DAcquiring a memory image from 192.168.230.138

How the community answered

(40 responses)
  • A
    3% (1)
  • B
    3% (1)
  • C
    95% (38)

Why each option

The command shown performs a service and version enumeration scan against a target host, a core step in network reconnaissance.

AConnecting to an SMB share on 192.168.230.138

Connecting to an SMB share requires a tool like smbclient and targets port 445 specifically, not a general port and service scanner.

BListing active network connections to 192.168.230.138

Listing active connections is done with local commands like netstat or ss, which show the current machine's sockets, not a remote host's running services.

CDetermining what services are running on 192.168.230.138Correct

Tools like nmap with the -sV or -A flag probe open ports on a target host to identify which services and software versions are running. This is standard service enumeration, allowing an analyst to map the attack surface or verify what is listening on a remote system.

DAcquiring a memory image from 192.168.230.138

Memory acquisition requires specialized forensic tools such as WinPmem or LiME and cannot be performed with a network scanning utility.

Concept tested: nmap service version detection and enumeration

Source: https://nmap.org/book/man-version-detection.html

Topics

#service enumeration#network scanning#port scanning#SMB

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