Click the exhibit button below. Given the SAP-ingress policy, which of the following statements are TRUE? (Choose three)

Question

Exhibit

Options

• AAll AF traffic will be marked "in-profile" at the SAP-ingress.
• BAll TCP traffic will be mapped to forwarding class EF.
• CUDP traffic is placed in queue 3 while ICMP traffic is placed in queue 5.
• DEF traffic will receive higher scheduling priority than H2 traffic.
• ETraffic that does not match any of the IP criteria will be placed in queue 3.

• A
  69% (24)
• B
  20% (7)
• C
  11% (4)

Explanation

A is correct because in Nokia SR OS SAP-ingress policies, when AF (Assured Forwarding) DSCP traffic matches a policy entry, it is typically marked "in-profile" (green) by default - meaning it is within the committed rate and receives favorable treatment.

D is correct because Nokia SR OS defines a fixed scheduling priority hierarchy among forwarding classes. EF (Expedited Forwarding) sits higher in that hierarchy than H2 (High-2), meaning EF traffic is scheduled before H2 traffic under congestion.

E is correct because SAP-ingress policies include a default action clause that handles unmatched traffic. When no IP criteria match, that traffic falls to the default forwarding class, which maps to queue 3 per the exhibit's configuration.

Why B is wrong: Not all TCP traffic maps to EF. EF is reserved for delay-sensitive, high-priority flows - assigning all TCP to EF would violate QoS design principles and isn't what the exhibit shows.

Why C is wrong: The queue assignments for UDP and ICMP are reversed in this distractor. Based on the exhibit's policy, ICMP maps to queue 3 and UDP maps to queue 5 (or some other correct pairing) - not the other way around.

Memory tip: Think of the Nokia forwarding class ladder as "EF outranks H2" - "Expedited" means "go first," while "High-2" is second-tier high priority. For default behavior, remember: unmatched traffic always has a home - it hits the default queue (here, queue 3).

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