Bandwidth, Latency, Jitter, Packet Loss, and QoS Explained - Network+ N10-009

Performance metrics explained step by step for the CompTIA Network+ N10-009 exam. This video breaks down bandwidth versus throughput and goodput, latency and round trip time with the ITU-T G.114 150 ms one-way target for voice, jitter thresholds (20 ms excellent, 30 ms acceptable, 50 ms degraded), packet loss thresholds (1% and up breaks VoIP), mean opinion score (MOS) on the 1 to 5 scale with 4.0 as the good target, baseline creation with SNMP, NetFlow, and sFlow, and QoS fundamentals including DSCP 46 (EF) for voice, DSCP 34 (AF41) for interactive video, 802.1p CoS with its 3-bit VLAN tag field and 8 classes, and queue types (priority, WFQ, LLQ, CBWFQ).

This is part of the full CompTIA Network+ N10-009 playlist covering every exam objective from Domain 1 networking fundamentals through Domain 5 troubleshooting. The next video in the playlist moves on to disaster recovery and high availability for networks.

Timestamps, chapters, and music credits are added automatically below.

▶ Watch next: Lifecycle Management, EOL vs EOS, and Patching Explained - Network+ N10-009 https://www.youtube.com/watch?v=5sjw2zRtdSo