CompTIA Linux+ XK0-006 (V8) Practice Question

Installing a lightweight agent on each server permits granular, process-level metrics that agentless methods such as SNMP or ad-hoc SSH polling usually cannot expose. Because the agent initiates an outbound HTTPS connection, no additional inbound ports need to be opened on the DMZ hosts. Most modern agents can buffer data locally during a network interruption and forward it when connectivity returns, eliminating the need for continuous external polling. Agentless SNMP or SSH approaches depend on the monitoring server being able to pull data in real time, create more network traffic, and generally lack detailed disk-I/O or per-process statistics. ICMP checks provide only basic reachability information and no performance data, so they do not satisfy the stated requirements.