Exam NCP-NS-7.5 Topic 1 Question 39 Discussion

Actual exam question for Nutanix's NCP-NS-7.5 exam
Question #: 39
Topic #: 1

A newly-deployed Flow Virtual Networking VPC environment is experiencing connectivity issues... A packet capture on the physical switch shows packets are being fragmented. What is the probable cause of the packet fragmentation and performance issues?

A. A Network Security Group is incorrectly filtering IP fragments. B. The MTU on the physical or virtual switch layer is set too low. C. The VM's guest OS network driver is faulty and requires an update. D. The VPC's external network uplink has an incorrect VLAN ID configured.

Suggested Answer: B Vote an answer

The most professional way to evaluate this question is to map the symptom to the Nutanix feature responsible for that function rather than reacting to secondary details in the prompt. The correct response is B, meaning
"The MTU on the physical or virtual switch layer is set too low.". MTU planning matters because encapsulation adds overhead. When overlay, Geneve, VXLAN, or IPSec is present, a path that looks healthy at 1500 bytes can still fragment or drop larger frames unless the underlay and endpoints are sized correctly.
Operationally, Flow Virtual Networking should be checked from the control plane outward: gateway health, peering state, route advertisement, ERP coverage, external path, and MTU when encapsulation is involved.
By contrast, A does not fit because it targets a different layer of the Nutanix networking and security stack than the one causing the outcome here. C does not fit because it targets a different layer of the Nutanix networking and security stack than the one causing the outcome here. Seen operationally, the correct response is the least disruptive and most deterministic one. It changes the exact Nutanix setting that governs the outcome instead of introducing workarounds elsewhere in the.

by Freda at Oct 07, 2026, 12:34 AM

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