What can be determined from this show command?

Refer to the exhibit.

What can be determined from this show command?
A . Traffic below 100 KB is marked as congested
B . ECN is enabled for all colors
C . ECN is enabled for all DSCP values
D . There is a 10% probability that traffic is marked as congested

Answer: B

Explanation:

The output of the command show qos wred-policy pfc34 shows the ECN (Explicit Congestion Notification) configuration for the policy pfc34. The line ecn: ecn_all indicates that ECN is enabled for all traffic classes (all DSCP values). Additionally, the green-min-threshold, green-max-threshold, and green-drop-probability settings are shown, but there is no indication of a 10% probability for marking traffic as congested. Therefore, the correct answer is B.

References:

Dell Enterprise SONiC documentation

Dell Technologies InfoHub