Prepare yourself for a VMware interview today, below interview questions and answers can help
Answer: VMware company provides virtualization and cloud computing software. It offers a range of virtualization products, including VMware vSphere, which includes ESXi, and vCenter.
Answer: ESXi is a hypervisor, a bare-metal installation that runs directly on the hardware to virtualize the server. vSphere is a suite of products that includes ESXi and vCenter Server, which provides centralized management.
Answer: A virtual machine is a software computer like a physical computer. It runs an operating system and applications on top of a physical computer; multiple Virtual Machines can be created on top of a single physical computer
Answer: A cluster is a group of ESXi hosts, Features like HA & DRS can be enabled on the cluster
Answer: vCenter Server is a centralized management platform allowing administrators to manage multiple ESXi hosts and virtual machines. vCenter is required to use vSphere features like vMotion, HA (High Availability), and DRS (Distributed Resource Scheduler)
Answer: High Availability is a feature that provides automated recovery from ESXi host and guest operating system failures. If a host fails, the virtual machines are restarted on other hosts within the cluster.
Answer: DRS dynamically allocates and balances computing resources across a cluster of ESXi hosts. It monitors the resource usage of ESXi hosts and migrates VMs to other hosts to ensure optimal performance and resource utilization.
Answer: A snapshot is a point-in-time state of a virtual machine. It captures the VM's disk and memory at a specific moment. Snapshots are useful for capturing the state of VMs when testing software updates, etc. However, they should not be used as a substitute for regular backups.
Answer: vMotion is a feature that enables the live migration of a running VM from one host to another without any interruption in service. It moves the VM state, memory, and network connections seamlessly.
Answer : Storage vMotion is a feature that allows a VM's storage to be migrated from one datastore to another while the VM is running. This helps balance storage resources and perform maintenance without downtime.
Answer: vSAN (Virtual SAN) is a software-defined storage solution integrated with vSphere. It aggregates local or direct-attached storage on ESXi hosts to create a shared datastore for VM storage.
Answer: Fault Tolerance is a feature that provides continuous availability for VMs by creating a secondary VM that mirrors the primary VM in real-time. If the primary VM fails, the secondary VM takes over without any interruption.
Answer: OVF is a standard for packaging and distributing virtual appliances. It includes metadata about the virtual machine, such as its hardware requirements and configurations, making it easier to deploy VMs across different virtualization platforms .
Answer: Troubleshooting performance issues involves analyzing resource usage, checking logs, and using tools like vSphere Performance Charts. Identifying resource bottlenecks and optimizing VM configurations are essential steps.
Answer: Thick provisioning allocates all the storage space for a VM upfront, while thin provisioning allocates space only as needed. Thin provisioning is more efficient in terms of storage utilization but requires monitoring to avoid running out of space.
Answer: A template is a master copy of a virtual machine that can be used to create new VMs. It serves as a baseline for VM deployments, allowing for consistent and rapid provisioning of VMs.
Answer : Patching/Upgrading ESXi hosts involves using the vSphere Life Cycle Manager or manually applying patches. The process includes placing hosts in maintenance mode, checking compatibility, and patching/upgrading the ESXi Host.
Answer:
1. Configure a Master Host/Reference Host.
2. Configure a Host Profile based on that Host.
3. Attach the Profile to a Host or Cluster.
4. Check the host or Cluster's Compliance to that profile
5. Apply the profile to the host or all hosts of the cluster (remediate)
Answer: VMware Tools is a suite of utilities that enhances VM performance. It includes drivers for better mouse and display performance, time synchronization between guest and host, and other optimizations.
Answer: Resource usage can be monitored using tools like vSphere Performance Charts, which provide insights into CPU, memory, disk, and network utilization. Alarms can also be set up to alert administrators of potential issues.
Answer: VLANs are used to segment network traffic in a virtualized environment. In VMware, VLAN tagging is done at the Port Group level to isolate and control network communication between VMs.
Answer: A Content Library is a centralized repository for VM templates, vApp templates, ISO images, and other files. It allows for easy sharing and distribution of content across multiple vCenter Server instances.
Answer : After Broadcom's takeover , VMware licensing is typically based on the cpu-cores of ESXi hosts. vSphere licenses include features such as vMotion, HA, DRS and Centralized Management Server i.e. vCenter Server
Answer: Linked Mode allows multiple vCenter Server instances to be linked together, providing a unified view and management of resources across different Center Server systems.
Answer: Automatic Storage vMotion is done if S pace is Low on Datastore, or Latency is High for a VM
Answer: vDS allows network configurations to be managed at data center level across multiple ESXi hosts instead of configuring individual standard switches on each host. It provides a consistent networking configuration across all hosts, making deploying and managing large-scale virtual environments easier.
Answer : P2V , or Physical-to-Virtual , is a process that involves converting a physical server (or physical machine) into a virtual machine (VM).
Answer : VMware vCenter Converter is a free tool that allows users to convert physical machines into VMware virtual machines.
Answer : Securing a vSphere environment involves configuring permissions , enabling ESXi lockdown mode , using network and storage security measures, and regularly updating and patching the infrastructure.
Answer : Creating a virtual machine involves defining its properties, such as name, guest operating system, and hardware specifications, generally using the vSphere Client. This includes configuring CPU, memory, storage, and network settings before powering on the VM.Watch Live Recorded Lecture
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