During an active reconnaissance phase, a penetration tester is seeking to uncover detailed security weaknesses of the network devices in an organization's infrastructure. What technique should the tester employ to yield the most thorough assessment of the devices' configuration and detectability of unknown vulnerabilities?
Executing a credentialed vulnerability scan across the network to interactively assess the devices
Investigating the organization's public digital footprint for references to network devices and configurations
Launching a social engineering attack aimed at the IT department to gather internal documentation on network devices
Analyzing network traffic for anomalies that might indicate the presence and types of network devices