Question 60 of 1,840
hardMultiple ChoiceObjective-mapped
350-401 Practice Question: Runs the following command on Router R9: R9# show…
A network engineer runs the following command on Router R9:
R9# show policy-map interface GigabitEthernet0/0.900
GigabitEthernet0/0.900
Service-policy input: QOS_POLICY_VRF_G Class-map: CLASS_VOICE (match-all) 0 packets, 0 bytes 5 minute offered rate 0 bps, drop rate 0 bps Match: ip dscp ef (46) police: cir 1000000 bps, bc 31250 bytes, be 31250 bytes conformed 0 packets, 0 bytes; actions: transmit exceeded 0 packets, 0 bytes; actions: drop violated 0 packets, 0 bytes; actions: drop Class-map: CLASS_DATA (match-all) 0 packets, 0 bytes 5 minute offered rate 0 bps, drop rate 0 bps Match: ip dscp af31 (26) police: cir 2000000 bps, bc 62500 bytes, be 62500 bytes conformed 0 packets, 0 bytes; actions: transmit exceeded 0 packets, 0 bytes; actions: drop violated 0 packets, 0 bytes; actions: drop Class-map: class-default (match-any) 0 packets, 0 bytes 5 minute offered rate 0 bps, drop rate 0 bps Match: any
Based on this output, what can be concluded?
⚠ Common exam trap
Cisco often tests the ability to read the 'Service-policy input' or 'output' direction in the command output, as candidates may overlook the direction keyword and incorrectly assume the policy is applied outbound or not applied at all.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
A QoS policy is applied inbound on GigabitEthernet0/0.900, policing voice and data traffic
The output shows the 'Service-policy input: QOS_POLICY_VRF_G' line, confirming that a QoS policy is applied inbound on GigabitEthernet0/0.900. The policy contains two user-defined class maps: CLASS_VOICE (matching DSCP EF) with a police rate of 1 Mbps and CLASS_DATA (matching DSCP AF31) with a police rate of 2 Mbps, both with conform/transmit and exceed/violate drop actions. This demonstrates that both voice and data traffic are being policed, making option C correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
No QoS policy is applied to this interface
Why it's wrong here
A service-policy is clearly shown.
- ✗
The policy only polices voice traffic
Why it's wrong here
Both voice and data classes are policed.
- ✓
A QoS policy is applied inbound on GigabitEthernet0/0.900, policing voice and data traffic
Why this is correct
The policy is applied input, with classes for voice (DSCP EF) and data (DSCP AF31), each with police actions.
- ✗
The policy is applied outbound
Why it's wrong here
It says 'Service-policy input', so inbound.
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Last reviewed: Jun 24, 2026
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