Exam 3V0-23.25 Topic 1 Question 9 Discussion

Actual exam question for VMware's 3V0-23.25 exam
Question #: 9
Topic #: 1

A SOC Analyst is investigating a massive CPU utilization spike on a VCF 9.0 ESXi host immediately after a Supplemental NFS v4.1 Datastore was mounted. The principal storage is vSAN ESA.
```
[Log Snippet: vmkernel.log - ESXi Host]
2026-11-20T11:00:00Z INFO tcp_ip - [NFS] IP Fragmentation event
detected.
2026-11-20T11:00:05Z WARN cpu_sched - [Hostd] CPU 01 saturation: 99%
(Processing network interrupts).
```
The Physical Network switch is configured for standard MTU 1500. What is strictly causing this configuration to cripple the ESXi host CPU, assuming the storage traffic is high volume? (Select all that apply.)

A. The CPU is consumed by the Top-of-Rack switch's native ASIC routing protocol. B. The ESXi host automatically triggers a "Deep Rekey" operation when MTU mismatches are detected to ensure the fragmented packets remain encrypted. C. The fragmentation and subsequent reassembly of massive NFS payload data consumes astronomical amounts of ESXi CPU cycles (Interrupt Requests), starving the hostd management agent and the vSAN DOM of compute resources. D. Because the host is sending 9000-byte packets and the physical switch only supports 1500-byte packets, the ESXi network stack is forced to violently fragment every storage packet into 6 smaller packets. E. The VMkernel port used for the NFS datastore was mistakenly configured with MTU 9000 (Jumbo Frames).

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