A school-district lab’s Network Operator verification fails because expected network attachments are missing. What should staff diagnose?
Select an answer to reveal the explanation.
Short Explanation
If the expected network attachments never showed up, you don't have a pass — you have an unfinished job. Diagnose incomplete Network Operator functionality rather than trusting host link checks or DNS health as a stand-in.
Full Explanation
When a school-district lab Network Operator verification fails because expected network attachments are missing, staff should diagnose incomplete NVIDIA Network Operator functionality that did not create the expected attachments. Missing secondary/InfiniBand network attachments mean the enablement path did not complete: configuration, plugin, or reconciliation issues left RDMA networking incomplete. Treating verification as failed until attachments appear keeps lab training accurate and prevents false green results.
Detecting properly initialized InfiniBand fabric links via ibstat on school-district worker host systems does not satisfy the acceptance criteria—the expected Kubernetes network attachments are the evidence of success. Attributing missing attachments to degraded GPU compute performance triggering secondary network attachment validation errors fails conceptually: GPU performance does not create Kubernetes network attachment definitions or RDMA secondary networks. Claiming healthy CoreDNS resolution for pod services confirms RDMA network attachment availability fails because DNS resolution is unrelated to InfiniBand/RDMA attachment objects.
Exam caveat: Incomplete Network Operator functionality points to operator enablement gaps (values, plugins, CRDs, node pre-reqs), not every possible cluster bug. Still rule out missing prerequisites such as Multus or host RDMA drivers when diagnosing.
Operational check: Compare the school-district lab expected Network Attachment Definitions or InfiniBand networks against what exists post-install, inspect Network Operator logs for reconcile errors, fix configuration, re-verify that attachments appear, and only then mark verification passed.