Tag: Troubleshooting
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100 Lab Tasks for the VCP-VVF Support Exam (2V0-18.25)
Every objective in exam 2V0-18.25 is troubleshooting vSphere Foundation 9.0, from a failed deployment to a workflow that will not run. 100 lab tasks that ask you to create each fault and then diagnose it, mapped to all nine objectives.
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163 Lab Tasks for the VCP-VCF Support Exam (2V0-15.25)
Every objective in exam 2V0-15.25 is troubleshooting, from a failed VCF 9.0 deployment to a stuck HCX migration. 163 lab tasks that ask you to create each fault and then diagnose it, mapped to all eleven objectives.
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214 Hands-On Tasks for the VCAP VCF Support Exam (3V0-13.26)
The mirror of the Administrator exam: every objective sits under Troubleshoot and Optimise and nothing else. A workbook of 214 tasks across compute, storage, Automation, VKS, Operations and NSX, built on creating the fault before you diagnose it.
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195 Hands-On Tasks for the Advanced VCF Networking Exam (3V0-25.25)
Exam 3V0-25.25 tests design, build and troubleshooting together, all of it against NSX. A workbook of 195 tasks across all three, each linked to its steps and a diagram.
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Failed VKS Cluster Upgrade Recovery Without Deleting Nodes (VCAP-VKS Exam Series, Part 33)
A stalled VKS cluster upgrade is a live reconciliation loop blocked on a precondition, not a crashed job, and deleting the stuck node destroys your evidence without unblocking anything. Here is how to classify the stall from Cluster API conditions and clear it in the right context.
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VKS Registry and Trusted CA Errors in Container Deployment (VCAP-VKS Exam Series, Part 32)
Objective 5.3 as a runbook: separating x509 trust failures from registry authentication failures on a VKS cluster, the double encoded secret the Supervisor expects, and the version window where the fix applies but never reaches containerd.
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VKS VM Class, Cluster Plan and Content Library Fault Diagnosis (VCAP-VKS Exam Series, Part 31)
Objective 5.2 packs five different fault families into a single line of blueprint text. Here is the five gate sweep I use to tell a VM class binding problem from a cluster plan certificate defect, with the real error strings and the surface that actually fixes each one.
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Diagnosing Supervisor and VKS Provisioning and Namespace Errors (VCAP-VKS Exam Series, Part 30)
Objective 5.1 as a runbook: a fixed reading order for Supervisor and VKS provisioning, connectivity and namespace failures, with the real error lines, the controller namespace that moved on VCF 9.0, and the checks that prove each layer.
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Grow Storage With LVM Logical Volumes (Linux for Beginners, Part 22)
Fixed partitions are rigid; LVM puts a flexible layer between disks and filesystems so you can grow a full volume onto a new disk with no downtime. PVs, VGs, LVs, and snapshots.
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Backups With rsync and tar, Done Right (Linux for Beginners, Part 21)
Making copies is easy; making copies you can restore from is the skill. rsync and tar, the trailing-slash trap, space-smart snapshots, and why an untested backup is not a backup.
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Troubleshoot Linux the Methodical Way, Not by Guessing (Linux for Beginners, Part 18)
The admins who fix things fast follow a method, not a hunch. Define the problem, check the cheap causes first, read the signal not just the number, and change one thing at a time.
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Basic Security Hardening for a New Linux Server (Linux for Beginners, Part 17)
A fresh server gets brute-forced within minutes. The five changes that stop almost all automated attacks: patch, key-only SSH, a default-deny firewall, fail2ban, and least privilege.
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About the Author
Dr Pranay Jha
Dr. Pranay Jha is a Cloud and AI Consultant with 18+ years of experience in hybrid cloud, virtualization, and enterprise infrastructure transformation. He specializes in VMware technologies, multi-cloud strategy, and Generative AI solutions. He holds a PhD in Computer Applications with research focused on Cloud and AI, has published multiple research papers, and has been a VMware vExpert since 2016 and a VMUG Community Leader.
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