3V0-13.26 sample questions

Question 1

A customer reports that a specific Tier-1 Gateway in an NSX environment within VCF is dropping traffic intermittently. The VCF Support Engineer decides to perform a packet walk to validate the datapath.

Which tool in NSX Manager allows the engineer to inject a synthetic packet into the datapath and visualize its hop-by-hop handling through the logical switching and routing constructs?

Accepted Answer

Traceflow

Answer

Live Traffic Analysis

Answer

Port Mirroring

Answer

IPFIX

Question 2

An administrator is troubleshooting a failed VCF Automation deployment. The error log indicates that the 'Ebont' service is in a failed state. The administrator logs into the VCF Automation appliance CLI.

Which command should be used to verify the status of all Kubernetes pods running the automation services?

Accepted Answer

kubectl get pods -n prelude

Answer

vracli service status

Answer

vcf-cli automation health

Answer

service vra-automation status

Question 3

A VCF environment has a vSphere Kubernetes Service (VKS) Supervisor Cluster configured across three zones. A developer reports that they cannot deploy a new Tanzu Kubernetes Grid (TKG) cluster. The error message is: '0/3 control plane nodes available'.

Which component should the support engineer investigate first to determine if the Supervisor Control Plane VMs are healthy?

Accepted Answer

vCenter Server 'Namespaces' Summary

Answer

Harbor Image Registry

Answer

NSX Tier-0 Gateway Route Table

Answer

SDDC Manager Repository

Question 4

Select TWO common reasons why a VCF Operations Cloud Proxy might show as 'Offline' in the VCF Operations interface despite the VM being powered on and accessible via SSH.

Accepted Answer

The One-Time Password (OTP) expired before the initial connection was established.

Accepted Answer

Port 443 is blocked outbound from the Cloud Proxy to the VCF Operations cluster.

Answer

The vCenter Server requires a restart.

Answer

The Cloud Proxy has too much CPU allocated.

Question 5

A critical database VM in a VCF Workload Domain is experiencing high I/O latency. The underlying storage is vSAN. The support engineer wants to determine if the latency is introduced at the VM kernel level or the physical disk level.

Which specific metric in the vSAN Performance Service should be analyzed to see the time spent in the ESXi storage stack versus the backend physical device?

Accepted Answer

vSAN Backend vs Frontend Latency

Answer

Buffer Destage Rate

Answer

Congestion

Answer

VM Physical I/O IOPS

Question 6

True or False: When troubleshooting an ESXi Host PSOD (Purple Screen of Death) in a VCF environment, the `vmk-zdump` utility can be used to extract the log from a core dump partition even after the host has rebooted.

Accepted Answer

True

Answer

False

Free 3V0-13.26 sample questions

Select TWO common reasons why a VCF Operations Cloud Proxy might show as 'Offline' in the VCF Operations interface despite the VM being powered on and accessible via SSH.

True or False: When troubleshooting an ESXi Host PSOD (Purple Screen of Death) in a VCF environment, the `vmk-zdump` utility can be used to extract the log from a core dump partition even after the host has rebooted.

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