VMCE Veeam Backup & Replication Architecture 3

Question 1

In Veeam's architecture, what is the purpose of a WAN Accelerator?

Accepted Answer

To deduplicate and compress backup traffic between sites, reducing bandwidth consumption

Answer

WAN Accelerators use global deduplication and caching to reduce the volume of data transferred between sites, making offsite backups and replications much faster.

Question 2

Which Veeam transport mode is most efficient for SAN environments where the backup proxy has direct access to the same storage as the production VMs?

Accepted Answer

Direct SAN Access mode

Answer

Direct SAN Access mode allows the proxy to read VM disk data directly from the SAN LUN, bypassing ESXi hosts and the production network for maximum throughput.

Question 3

What is Veeam's 'Synthetic Full Backup' and how does it differ from an Active Full?

Accepted Answer

A synthetic full is constructed on the backup server by merging existing incremental files without re-reading source VM data; an active full re-reads the entire VM from source

Answer

Synthetic full backup consolidates existing backup data on the repository side without accessing source infrastructure, while an active full reads the entire VM disk from the source.

Question 4

Where does Veeam create a VM snapshot during a backup job using VMware vSphere?

Accepted Answer

On the ESXi host using vSphere VADP API to quiesce and freeze the VM disk I/O

Answer

Veeam triggers a VMware snapshot via VADP on the ESXi host to capture a consistent point-in-time state of the VM disks before reading data.

Question 5

In a Veeam deployment, what is the 'Backup Proxy' responsible for?

Accepted Answer

Processing backup traffic by reading VM data, compressing, deduplicating, and encrypting it before sending to the repository

Answer

The Backup Proxy is the data mover that handles all data processing tasks including reading VM data from source, applying compression/deduplication/encryption, and transmitting to the repository.

(VMCE) Veeam Certified Engineer Practice Test

(VMCE) Veeam Certified Engineer Practice Test

VMCE Veeam Backup & Replication Architecture 3