nerdexam
Nokia

4A0-107 · Question #10

On the Alcatel-Lucent 7750 SR, where can network-queue policies be applied? (Choose two)

The correct answer is A. On the network egress port. F. On the ingress MDA. On the 7750 SR, network-queue policies govern QoS for network-facing (core/IP-MPLS) traffic, and they attach specifically to the network egress port (A) to shape outbound core traffic, and to the ingress MDA (F) to classify and queue inbound network traffic before it reaches…

Ingress and Egress QoS

Question

On the Alcatel-Lucent 7750 SR, where can network-queue policies be applied? (Choose two)

Options

  • AOn the network egress port.
  • BOn the SDP.
  • COn the access ingress port.
  • DOn the egress MDA.
  • EOn the SAP.
  • FOn the ingress MDA.

How the community answered

(31 responses)
  • A
    74% (23)
  • B
    13% (4)
  • C
    6% (2)
  • D
    3% (1)
  • E
    3% (1)

Explanation

On the 7750 SR, network-queue policies govern QoS for network-facing (core/IP-MPLS) traffic, and they attach specifically to the network egress port (A) to shape outbound core traffic, and to the ingress MDA (F) to classify and queue inbound network traffic before it reaches the forwarding plane. SDPs (B) and SAPs (E) are service-layer constructs that use SAP ingress/egress or SDP-specific QoS policies, not network-queue policies. Access ingress ports (C) use access ingress QoS policies by definition - "access" and "network" are distinct policy domains on the 7750. The egress MDA (D) is a distractor because for egress, the policy is applied at the port level, not the MDA level; MDA-level application is an ingress-only concept.

Memory tip: Think "Network = Port Out, MDA In" - network-queue policies live at the egress port and ingress MDA, while anything named SAP, SDP, or "access" belongs to a completely different policy family.

Topics

#network-queue policies#7750 SR architecture#QoS application points#ingress/egress paths

Community Discussion

No community discussion yet for this question.

Full 4A0-107 Practice