3V0-13.26 Advanced VMware Cloud Foundation 9.0 Support Practice Questions
Prepare for 3V0-13.26 with more than an answer.
- Exam fee
- $250 USD
- Level
- Advanced Professional (VCAP)
- Valid for
- 3 years (36 months)
Domains covered on the exam 5
- IT Architectures, Technologies, Standards
- VMware Products and Solutions
- Plan and Design the VMware Solution
- Install, Configure, Administrate the VMware Solution
- Troubleshoot and Optimize the VMware Solution100%
- 1
Case Study: GlobalBank VCF Troubleshooting
GlobalBank operates a dual-site VCF 9.0 environment with a Stretched vSAN Cluster.
Site A (Preferred) contains 10 hosts.
Site B (Secondary) contains 10 hosts.
The Witness Appliance is located in Site C.Scenario:
A fiber cut completely isolates Site C (Witness) from both Site A and Site B.
Simultaneously, a power failure causes Host 1 in Site A to fail.What is the expected behavior of the vSAN objects that had components on Host 1?
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Correct answer: B
In a vSAN Stretched Cluster, if the Witness is lost but Site A and Site B can still communicate, the Preferred Site (Site A) usually dictates ownership. With 20 hosts remaining and communicating, they typically maintain a quorum for the cluster objects, handling the 'Witness Host Absent' scenario by relying on the surviving data replicas across the active sites.
- 2
A support engineer is troubleshooting a 'Disk Space Full' alert on the vCenter Server Appliance (VCSA) within a VCF Workload Domain. The
/storage/seatpartition is at 99% usage.What is the primary content of this partition, and what is the recommended immediate action to stabilize the VCSA?
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Correct answer: D
The
/storage/seatpartition stores the vPostgres database, specifically Events and Tasks. If it fills up, vCenter services may stop. The correct fix is usually expanding the disk (using LVM autogrow features in VCSA) or truncating old events/tasks if expansion isn't possible immediately. - 3
When troubleshooting a vSphere Kubernetes Service (VKS) deployment, an engineer encounters a 'ImagePullBackOff' error for a pod. The pod spec references a private Harbor registry deployed within VCF.
Which of the following is the most probable cause?
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Correct answer: C
If the TKG cluster nodes do not have the Harbor Registry's CA certificate in their trusted store, the HTTPS connection to pull the image will fail with an SSL/TLS error, resulting in 'ImagePullBackOff'.
- 4
A VCF Support Engineer is troubleshooting a 'Datastore not accessible' alert in a Workload Domain. The environment uses vSAN 9.0. Upon inspection using the vSphere Client, several VMs show their objects as 'Inaccessible'. The engineer runs
esxcli vsan cluster geton one host and notices the 'Sub-Cluster Member Count' is lower than the total number of hosts.Which command should the engineer run next to identify which specific hosts have formed a partition?
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Correct answer: D
The
esxcli vsan cluster listcommand provides detailed information about the cluster membership seen by the local host, including the UUIDs of all members in the current partition. This allows the engineer to identify exactly which hosts are communicating and which are isolated.esxcli vsan debug object listshows object states but not host partitioning details directly. - 5
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?
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Correct answer: B
Traceflow is the dedicated NSX tool designed to inject synthetic packets into the network and trace their path through logical switches, gateways, and firewalls, reporting the outcome at each hop (e.g., dropped, forwarded, encapsulated).
- 6
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?
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Correct answer: C
VCF Automation runs its services as Kubernetes pods within the 'prelude' namespace. The standard command to list these pods and their status is
kubectl get pods -n prelude. Whilevraclicommands exist, checking pod status directly provides the granular details needed for troubleshooting a specific service failure like 'Ebont'.
