200-301 - IP Services - Section 4.4

Explain the function of SNMP in network operations, describe syslog features including facilities and severity levels, and explain per-hop behavior (PHB) for QoS such as classification, marking, queuing, congestion, policing, and shaping.

Explain how SNMP polls and traps expose device health to a management station and how syslog records events by facility and severity, where lower severity numbers signal more critical conditions. Describe the QoS per-hop behavior tools - classifying and marking traffic, queuing it by priority, and managing congestion with policing (drop) versus shaping (buffer) - so latency-sensitive traffic like voice is protected.

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