350-801 · Question #587
Where is it recommended to enforce the QoS trust boundary on a network?
The correct answer is C. LAN access ingress. The QoS trust boundary should be enforced at the LAN access ingress so that traffic markings are trusted only from known and controlled devices, such as IP phones, before entering the network. This prevents untrusted endpoints from improperly marking traffic and ensures…
Question
Where is it recommended to enforce the QoS trust boundary on a network?
Options
- ALAN access ingress and the WAN access ingress
- BLAN access egress
- CLAN access ingress
- DLAN access egress and the WAN access egress
How the community answered
(21 responses)- A5% (1)
- B5% (1)
- C90% (19)
Explanation
The QoS trust boundary should be enforced at the LAN access ingress so that traffic markings are trusted only from known and controlled devices, such as IP phones, before entering the network. This prevents untrusted endpoints from improperly marking traffic and ensures consistent QoS treatment throughout the network.
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