EC-Council
312-50V9 · Question #292
312-50V9 Question #292: Real Exam Question with Answer & Explanation
The correct answer is A: Scan servers with Nmap. Nmap is the industry-standard tool for discovering open ports across multiple hosts efficiently and accurately.
Question
You're doing an internal security audit and you want to find out what ports are open on all the servers. What is the best way to find out?
Options
- AScan servers with Nmap
- BPhysically go to each server
- CScan servers with MBSA
- DTelent to every port on each server
Explanation
Nmap is the industry-standard tool for discovering open ports across multiple hosts efficiently and accurately.
Common mistakes.
- B. Physically visiting each server provides no direct information about which network ports are open and is completely impractical at scale.
- C. MBSA (Microsoft Baseline Security Analyzer) checks Windows security configurations and missing patches, but is not a port scanner and does not enumerate open TCP/UDP ports.
- D. Manually telneting to every possible port (0-65535) on each server is impractical, error-prone, and does not scale to an audit involving multiple servers.
Concept tested. Using Nmap for network port discovery
Reference. https://nmap.org/docs.html
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