Match each Quality of Service (QoS) field or traffic conditioning mechanism on the left to its correct header specification or operational characteristic on the right.
- IP PrecedenceA 3-bit Layer 3 field located in the IPv4 Type of Service (ToS) byte that defines up to 8 priority levels.
- Differentiated Services Code Point (DSCP)A 6-bit Layer 3 field in the IPv4 ToS or IPv6 Traffic Class byte supporting up to 64 per-hop behavior markings.
- Explicit Congestion Notification (ECN)A 2-bit field in the IP header used to notify TCP endpoints of queue buildup without dropping packets.
- Traffic ShapingAn egress-only mechanism that buffers packets exceeding the target bit rate to produce a smooth output rate.
Cevap
IP Precedence matches the 3-bit Layer 3 ToS field; DSCP matches the 6-bit Layer 3 field in ToS/Traffic Class; ECN matches the 2-bit IP congestion notification field; Traffic Shaping matches the egress buffering mechanism.
Each item accurately maps to its defined QoS header specification or operational mechanics. IP Precedence uses 3 bits in the ToS byte; DSCP uses 6 bits in the ToS/Traffic Class byte; ECN uses 2 bits to signal congestion without packet drops; Traffic Shaping buffers excess packets on egress interfaces.
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Anahtar Kavram
QoS Header Markings and Traffic Conditioning Functions
Tahmini Süre:1m 30s