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 VMware interview q & Answaer 2025  

1.What is the difference between VMware ESXi and ESX hypervisors? Which one is recommended for modern deployments?

2.Explain the process of installing and configuring VMware ESXi from scratch. 

3.How would you troubleshoot and resolve a purple screen of death (PSOD) error on an ESXi host? 

4.Describe the steps to configure and use VMware vMotion for live migration of virtual machines between ESXi hosts.

5.How do you configure and use VMware Distributed Resource Scheduler (DRS) for automatic workload balancing across ESXi hosts?

6.What are the considerations and steps involved in upgrading an ESXi host from one version to another? 

7.How would you troubleshoot and resolve performance issues on an ESXi host, such as high CPU or memory usage?

8.Explain the concept of ESXi host profiles and how they can be used for host configuration and consistency.

9.How do you configure and use VMware High Availability (HA) to ensure VM availability in case of host failures?

10.Describe the steps to configure and use VMware Fault Tolerance (FT) for continuous availability of critical virtual machines.

11.What is VMware vSphere Update Manager (VUM), and how do you use it to manage ESXi host patches and updates? 

12.Explain the process of configuring and managing virtual networking on an ESXi host, including virtual switches, VLANs, and port groups.

13.How do you configure and use VMware Storage vMotion to migrate virtual machine storage between datastores without downtime?

14.Describe the steps to configure and use VMware vSAN for software-defined storage in an ESXi cluster.

15.How would you troubleshoot and resolve connectivity issues between an ESXi host and its storage devices? 

16.Explain the concept of VMFS (Virtual Machine File System) and its role in managing virtual machine storage on an ESXi host.

17.How do you configure and use VMware vSphere Distributed Switch (vDS) for centralized management of virtual networking across multiple ESXi hosts?

18.Describe the process of creating and managing virtual machine templates on an ESXi host. 

19.What is VMware ESXi Shell, and how can it be used for advanced troubleshooting and configuration tasks?

20.How do you monitor and analyze performance metrics on an ESXi host using tools like esxtop and vSphere Performance Charts? 

21.Explain the concept of passthrough or direct device assignment in VMware ESXi and when it is used.

22.How would you configure and use VMware vRealize Log Insight for log management and analysis on an ESXi host? 

23.Describe the steps to configure and use VMware vSphere Replication for replicating virtual machines between ESXi hosts for DRpurposes.

24.Explain the process of configuring and using VMware ESXi lockdown mode for enhancing host security and restricting access.

25.What is EVC in ESXi? What is the purpose of EVC and how and when to use the EVC feature?

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