VMware VCTA Virtual Storage Basics Quiz

1. In vSAN, what does 'deduplication' do?

Removes duplicate VMs from the cluster

Eliminates redundant data blocks to save capacity

Duplicates data across all hosts for redundancy

Separates VM disks from the datastore

2. In vSAN, what is 'resync' and when does it occur?

Rebuilding data after a host failure or recovery

Synchronizing VM snapshots across clusters

Updating storage policies on all VMs

Defragmenting physical disks

3. What is the primary role of vSAN Health Check?

To monitor and report on cluster storage health and compliance

To automatically repair corrupted data

To balance CPU usage across hosts

To encrypt all VM disks

4. Which storage tier is typically used for capacity in vSAN hybrid deployments?

All-flash drives

Magnetic hard disk drives (HDD)

RAM disks

External SAN arrays

5. In vSAN, what does 'object' refer to?

A physical disk drive

A logical unit of data (VM disk, snapshot, etc.)

A network interface card

A storage policy rule

6. What is the maximum supported vSAN cluster size?

32 hosts

64 hosts

128 hosts

256 hosts

7. Which VMware feature allows VMs to access storage across vSAN clusters?

VSAN Stretched Cluster

VSAN Inter-Cluster Replication

VSAN 2-Node Cluster

VSAN Hybrid Mode

8. In vSAN, what is 'object space reservation'?

Pre-allocating capacity for VM snapshots

Reserving physical space for VM objects based on policy requirements

Limiting the number of VMs per datastore

Preventing VM expansion beyond allocated size

9. What is the purpose of storage tags in vSAN SPBM policies?

To label VMs for backup purposes

To categorize and identify specific storage devices or tiers

To encrypt data blocks

To schedule VM migrations

10. Which storage protocol is commonly used for vSAN communication between hosts?

ISCSI only

Fibre Channel

Proprietary vSAN unicast and multicast

NFS exclusively

11. What is the primary purpose of VMware vSAN?

To provide network virtualization capabilities

To aggregate local storage from multiple hosts into a shared datastore

To manage virtual machine CPU allocation

To replace traditional SAN arrays entirely

12. What is the primary benefit of using SPBM (Storage Policy Based Management)?

To automatically balance VM workloads across hosts

To define and enforce storage requirements for VMs independent of physical storage

To eliminate the need for snapshots

To reduce network congestion

13. Which of the following describes 'stretched vSAN cluster'?

A single vSAN cluster spanning two geographic locations

A vSAN cluster with more than 64 hosts

A vSAN cluster with only flash storage

A vSAN cluster using erasure coding exclusively

14. In VMware vSAN, what is the purpose of a 'witness component'?

To store VM metadata only

To break ties in quorum decisions during split-brain scenarios

To encrypt data at rest

To monitor network latency

15. What is thin provisioning in virtual storage?

Allocating physical space only as needed by the VM

Pre-allocating all VM disk space upfront

Limiting network bandwidth for storage traffic

Using compression for all data blocks

16. Which storage technology does vSAN use for data protection by default?

RAID-5 only

Mirroring and erasure coding

Snapshot-based replication

Tape backup

17. In vSAN, 'Number of Failures to Tolerate' (NFTT) determines what?

How many hosts can fail before data becomes inaccessible

The maximum number of VMs per host

The network bandwidth required

The CPU cores needed for replication

18. What is the minimum number of hosts required for a vSAN cluster?

1

2

3

5

19. Which component is responsible for managing storage policies in vSAN?

Policy Engine

Storage Policy Based Management (SPBM)

Virtual Storage Controller

Distributed Resource Scheduler (DRS)

20. In vSAN, what is a 'failure domain'?

A group of hosts that can fail together without data loss

A single host that contains all replicas

A network segment isolated from the cluster

A storage policy setting for encryption