Refer to the exhibit. Which technology generates this log?

NetFlow (or IPFIX) logs provide aggregated network session information but typically do not include explicit 'allow/deny' actions or detailed policy enforcement decisions.

An IDS (Intrusion Detection System) primarily generates alerts when suspicious activity is detected, rather than detailed logs of all network connection attempts and their allow/deny status.

A web proxy specifically logs web requests (URLs, user agents, HTTP methods), not general network connection attempts at the IP/port level, and focuses on HTTP/HTTPS traffic.

Firewalls are security devices that monitor and control network traffic based on predefined rules, and their logs characteristically record connection attempts, source/destination IP addresses, ports, protocols, timestamps, and the action taken (e.g., allowed or denied) for each connection, matching the implied log structure.