Sample Questions and Answers
What does the “Drs Automation Level” control?
The degree to which Distributed Resource Scheduler automatically migrates VMs based on resource needs
B. VM snapshot schedules
C. Network switch configurations
D. Storage policies
Answer: A
Explanation: DRS automation can be set to manual, partially automated, or fully automated for VM placement and migration.
What role does “VMFS” play in a vSphere environment?
Provides a clustered file system allowing multiple hosts simultaneous access to the same storage
B. It’s a backup tool
C. It is a type of virtual network switch
D. It manages VM snapshots
Answer: A
Explanation: VMFS allows multiple ESXi hosts to read/write to shared storage concurrently.
What is “Host Profile” used for in vSphere?
To create a standardized configuration template for ESXi hosts to enforce consistency
B. Backup of VM configurations
C. Managing VM snapshots
D. Managing storage array settings
Answer: A
Explanation: Host Profiles automate compliance by applying consistent configurations across hosts.
How does “vSphere Update Manager” (VUM) assist in patch management?
Automates patch scanning, baseline creation, and remediation of ESXi hosts
B. Backs up VMs
C. Schedules VM migrations
D. Manages network traffic
Answer: A
Explanation: VUM simplifies and automates updates and patches to ESXi hosts and VMs.
What is “vCenter Server Linked Mode”?
Allows multiple vCenter Server instances to be linked for unified management and visibility
B. A backup mode
C. A networking mode
D. A storage replication feature
Answer: A
Explanation: Linked Mode allows administrators to manage multiple vCenters from one interface.
What are “vSphere Tags” used for?
To categorize and organize inventory objects like VMs, hosts, and datastores for easier management
B. VM encryption
C. Network segmentation
D. Resource allocation
Answer: A
Explanation: Tags help in grouping and filtering vSphere objects.
What is the default scheduler for CPU resource allocation in ESXi?
Weighted Fair Queuing (WFQ)
B. Round Robin
C. First Come First Serve
D. Priority Queuing
Answer: A
Explanation: ESXi uses WFQ to fairly allocate CPU cycles among VMs.
What is the function of “Admission Control” in vSphere HA?
Ensures sufficient cluster resources are reserved to restart VMs after a host failure
B. Controls user login
C. Controls VM power state
D. Monitors network traffic
Answer: A
Explanation: Admission Control prevents powering on VMs if cluster resource guarantees cannot be met.
How does “vSAN” differ from traditional storage?
Aggregates local disks across hosts into a shared datastore, eliminating the need for external SAN/NAS
B. It is a backup tool
C. It encrypts VM data
D. It manages VM snapshots
Answer: A
Explanation: vSAN pools direct-attached storage on hosts into a single, distributed datastore.
What is the purpose of “VM Encryption” in vSphere?
To protect VM data at rest and in motion using AES 256-bit encryption
B. To compress VM files
C. To speed up VM migration
D. To back up VM data
Answer: A
Explanation: VM Encryption secures VM files from unauthorized access.
What is the function of “Storage Policy-Based Management” (SPBM)?
Allows definition and enforcement of storage capabilities and compliance for VMs and datastores
B. Manages VM snapshots
C. Controls VM network bandwidth
D. Schedules VM backups
Answer: A
Explanation: SPBM lets administrators align storage service levels with VM requirements.
What does “vMotion” allow?
Live migration of powered-on VMs between hosts without downtime
B. VM backup
C. Storage migration only
D. Network switch migration
Answer: A
Explanation: vMotion moves running VMs with no service disruption.
What is “Cold Migration”?
Migration of powered-off VMs between hosts or datastores
B. Migration of running VMs
C. Backup of VMs
D. Snapshots creation
Answer: A
Explanation: Cold migration requires the VM to be powered off before moving.
What is the significance of “VMkernel Logging” in troubleshooting?
Records detailed ESXi host and VMkernel activity for diagnostics
B. Logs VM user activity
C. Stores VM backups
D. Manages storage events
Answer: A
Explanation: VMkernel logs are vital for diagnosing host and VM issues.
What does “Distributed Resource Scheduler” (DRS) do?
Automatically balances VM workloads across hosts in a cluster to optimize resource usage
B. Backs up VMs
C. Manages snapshots
D. Controls network bandwidth
Answer: A
Explanation: DRS migrates VMs and balances loads based on resource needs.
Which type of vSphere license is required to use vSphere Distributed Switch?
Enterprise Plus
B. Standard
C. Essentials
D. Foundation
Answer: A
Explanation: VDS requires Enterprise Plus license level.
What is a “vSphere HA heartbeat”?
Network and datastore signals sent between hosts to detect failures quickly
B. VM network traffic
C. Storage snapshots
D. Backup schedules
Answer: A
Explanation: Heartbeats enable HA to detect host failures and trigger VM failover.
What is the maximum number of hosts supported in a vSphere cluster?
64 hosts (varies by version)
B. 10 hosts
C. 128 hosts
D. Unlimited
Answer: A
Explanation: vSphere clusters support up to 64 hosts in most recent versions.
What is the difference between “thin” and “thick” provisioning of virtual disks?
Thin allocates storage on demand, thick pre-allocates full disk size
B. Thick compresses data
C. Thin is faster
D. No difference
Answer: A
Explanation: Thin provisioning saves space initially but can grow, while thick reserves space upfront.
How does “vSphere Storage vMotion” improve VM management?
Enables live migration of VM disk files across datastores without downtime
B. Moves powered-off VMs only
C. Migrates VM memory only
D. Migrates VM network connections
Answer: A
Explanation: Storage vMotion moves VM files without interrupting VM operation.
What is “Host Isolation Response” in vSphere HA?
The action a host takes when it loses connectivity to the cluster but remains powered on
B. Shuts down all VMs immediately
C. Starts backups
D. Upgrades host firmware
Answer: A
Explanation: Common responses include powering off VMs or leaving them powered on.
What is “vSphere Flash Read Cache”?
Uses local SSDs to provide high-speed read cache for VMs
B. Network cache
C. Backup cache
D. Storage compression tool
Answer: A
Explanation: Improves read performance by caching frequently accessed data on SSDs.
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