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350-401 · Question #288
350-401 Question #288: Real Exam Question with Answer & Explanation
The correct answer is C: Traffic received on VLANs 10, 11, and 12 is copied and sent to Interface g0/1.. The configuration copies all received traffic on VLANs 10, 11, and 12 and sends it to interface g0/1 for monitoring.
Submitted by andres_qro· Mar 6, 2026Network Assurance
Question
Refer to the exhibit. An engineer must configure a SPAN session. What is the effect of the configuration?
Options
- ATraffic sent on VLANs 10, 11, and 12 is copied and sent to interface g0/1.
- BTraffic sent on VLANs 10 and 12 only is copied and sent to interface g0/1.
- CTraffic received on VLANs 10, 11, and 12 is copied and sent to Interface g0/1.
- DTraffic received on VLANs 10 and 12 only is copied and sent to interface g0/1.
Explanation
The configuration copies all received traffic on VLANs 10, 11, and 12 and sends it to interface g0/1 for monitoring.
Common mistakes.
- A. The
rxkeyword in the source configuration explicitly specifies only received (ingress) traffic, not sent (egress) traffic. - B. The
vlan 10,11,12command includes all three VLANs, not just 10 and 12. - D. While it correctly identifies received traffic, it incorrectly excludes VLAN 11 from the source list.
Concept tested. Cisco SPAN source VLAN and direction configuration
Topics
#SPAN#Port Mirroring#VLAN monitoring
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