Port Scanning — CompTIA PenTest+ (PT0-002) Practice Questions
Port scanning is the technique of probing a target host or range of hosts to determine which TCP and UDP ports are open, closed, or filtered. On the PenTest+ exam, port scanning sits within the information gathering and scanning phase and is a prerequisite for identifying attack surfaces. Candidates are expected to understand various scan types, their network footprints, and how firewall rules and IDS signatures can affect scan results.
Free questions on port scanning
A penetration tester is conducting a network assessment and needs to identify all running services on a host. Which scanning technique provides the most reliable results with the least network traffic?
Free question · medium · full answer + explanation
Which Nmap scan type sends TCP packets with no flags set?
Free question · medium · full answer + explanation
More port scanning questions in the full bank
- When performing a full TCP connection scan (-sT) with Nmap, what is the key disadvantage compared to SYN scans? Unlock answer & explanation →
- You need to identify open UDP ports on a target. Which Nmap scan type is appropriate? Unlock answer & explanation →