DEA-1TT5 Virtualization and Cloud Storage

Question 1

What is a 'virtual machine' (VM) in the context of compute virtualization?

Accepted Answer

A software-based emulation of a computer that runs an operating system and applications as if it were a physical machine

Answer

A virtual machine is a complete software abstraction of a physical computer, including virtual CPU, memory, storage, and network interfaces, managed by a hypervisor on a physical host.

Question 2

What storage format does VMware use to store virtual machine disk data?

Accepted Answer

VMDK (Virtual Machine Disk)

Answer

VMware uses the VMDK (Virtual Machine Disk) format to store the contents of a VM's virtual disk, which can be stored on a datastore backed by SAN, NAS, or local storage.

Question 3

What is a 'datastore' in VMware vSphere?

Accepted Answer

A logical storage container (VMFS volume or NFS mount) used to store VM files on ESXi hosts

Answer

A vSphere datastore is a logical storage unit (formatted as VMFS block storage or mounted as NFS) that ESXi hosts use to store VM configuration files, VMDKs, snapshots, and templates.

Question 4

What is 'vMotion' and what storage requirement does it have?

Accepted Answer

A VMware tool for migrating VMs, requiring VM storage to be on shared storage accessible by both source and destination hosts

Answer

vMotion migrates running VMs between ESXi hosts with zero downtime, requiring the VM's storage to reside on shared storage (SAN or NAS) accessible by both the source and destination hosts.

Question 5

In cloud storage, what is 'object storage' most appropriate for?

Accepted Answer

Storing large volumes of unstructured data such as media files, backups, and static content at scale

Answer

Object storage excels at storing massive amounts of unstructured data (images, videos, backups, logs) using simple REST APIs, offering high scalability and durability at low cost.

DEA-1TT5 - Information Storage and Management Exam Practice Test

DEA-1TT5 - Information Storage and Management Exam Practice Test

DEA-1TT5 Virtualization and Cloud Storage