Exam 2V0-21.23 All Questions

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Exam 2V0-21.23 topic 1 question 19 discussion

Actual exam question from VMware's 2V0-21.23

Question #: 19
Topic #: 1

An administrator is tasked with looking into the disaster recovery options for protecting a database server using VMware vSphere Replication.
The following requirements must be met:
The virtual machine must remain online during the protection.
The virtual machine's snapshots must be used as part of the replication process.
Which step must the administrator complete to accomplish this task?

A. Configure the virtual machine storage policy.
B. Enable guest OS VSS quiescing for this virtual machine.
C. Perform a full initial synchronization of the source virtual machine to the target location.
D. Configure network traffic isolation for vSphere Replication.

Show Suggested Answer

Suggested Answer: B 🗳️

by ABCACB at May 30, 2023, 5:59 p.m.

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DesolateMarauder

Highly Voted 1 year, 10 months ago

B. Enable guest OS VSS quiescing for this virtual machine.

upvoted 15 times

DesolateMarauder

1 year, 10 months ago

Guest OS VSS (Volume Shadow Copy Service) quiescing is essential for ensuring application-consistent backups of the virtual machine, especially when dealing with databases and other applications that rely on consistent disk states. When VSS quiescing is enabled, vSphere Replication coordinates with the guest operating system to create application-consistent snapshots, which are then used as part of the replication process. Enabling VSS quiescing helps ensure that the virtual machine remains online during the replication process and that the snapshots used for replication are consistent, minimizing the risk of data corruption and ensuring a more reliable disaster recovery solution. Options A, C, and D are not directly related to the specific requirements mentioned and do not address the need to maintain the virtual machine online during replication or utilize snapshots for the process.

upvoted 6 times

DesolateMarauder

1 year, 10 months ago

Option A (Configure the virtual machine storage policy) is related to storage policies, which may not be directly tied to the requirements for guest OS VSS quiescing and replication. Option C (Perform a full initial synchronization of the source virtual machine to the target location) is a standard part of setting up vSphere Replication, but it does not specifically address the requirement for keeping the virtual machine online or using snapshots as part of the replication process. Option D (Configure network traffic isolation for vSphere Replication) refers to network configuration for vSphere Replication, but it is not directly related to meeting the stated requirements.

upvoted 6 times

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testing_soon

1 year, 8 months ago

VSS is Windows-only; the question doesn't mention guest OS.

upvoted 1 times

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michael24

Highly Voted 1 year, 11 months ago

Selected Answer: C

Changing my answer to C. D is not required, but recommended. What is required is that a full initial synchronization must be done for a VM to be protected. Also VSS is not supported on all OS's. https://docs.vmware.com/en/vSphere-Replication/8.7/com.vmware.vsphere.replication-admin.doc/GUID-C249300C-2BC0-4128-88B5-046C3DE6BC5B.html

upvoted 10 times

michael24

1 year, 11 months ago

I answered with C on the test, passed with 428.

upvoted 2 times

Testyboy15

1 year, 8 months ago

Agree. Point 16 says it all (Optional) Activate quiescing for the guest operating system of the source virtual machine. Note: Quiescing options are available only for virtual machines that support quiescing. vSphere Replication does not support VSS quiescing on vVOL.

upvoted 1 times

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VMWare_Admin

Most Recent 3 months, 2 weeks ago

Selected Answer: B

Replication Process vSphere HTML5 client configures replication for a virtual machine. Replication for one or more virtual machines can be selected and configured via the same workflow. When configuring replication, an administrator specifies items such as the virtual machine storage policy, RPO, VSS or Linux file system quiescing, network compression and encryption of replication traffic. Virtual machine snapshots are not used as part of the replication process unless VSS quiescing is enabled. The target location for vSphere Replication can be within the same vCenter Server environment or in another vCenter Server environment with vSphere Replication deployed https://www.vmware.com/docs/vsphere-replication-technical-overview?

upvoted 1 times

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DashRyde

5 months ago

Selected Answer: C

B (Enable guest OS VSS quiescing): Not required since replication in vSphere works without VSS quiescing. C (Perform a full initial synchronization): This step is crucial to start the replication process while keeping the VM online and aligns with the use of snapshots for recovery points. Final Answer: C. Perform a full initial synchronization of the source virtual machine to the target location.

upvoted 1 times

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PCG1

6 months, 3 weeks ago

Selected Answer: B

C is incorrect as the initial sync is a prerequisite and has nothing to do with subsequent snapshots.

upvoted 2 times

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walker0418

7 months, 2 weeks ago

vSphere HTML5 client configures replication for a virtual machine. Replication for one or more virtual machines can be selected and configured via the same workflow. When configuring replication, an administrator specifies items such as the virtual machine storage policy, RPO, VSS or Linux file system quiescing, network compression and encryption of replication traffic. Virtual machine snapshots are not used as part of the replication process unless VSS quiescing is enabled.

upvoted 1 times

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Bronzon_2948

8 months, 3 weeks ago

Selected Answer: C

The answer is C

upvoted 2 times

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Keo_01

10 months ago

Selected Answer: B

Virtual machine snapshots are not used as part of the replication process unless VSS quiescing is enabled. https://core.vmware.com/resource/vsphere-replication-technical-overview#section3:~:text=Virtual%20machine%20snapshots%20are%C2%A0not%20used%C2%A0as%20part%20of%20the%20replication%20process%20unless%20VSS%20quiescing%20is%20enabled.

upvoted 6 times

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Bing_Kang

1 year, 2 months ago

B. Virtual machine snapshots are not used as part of the replication process unless VSS quiescing is enabled. - https://core.vmware.com/resource/vsphere-replication-technical-overview#section3

upvoted 5 times

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tgybyt

1 year, 6 months ago

Virtual machine snapshots are not used as part of the replication process unless VSS quiescing is enabled. <Check chapter Replication Process> https://core.vmware.com/resource/vsphere-replication-technical-overview#section3 The requirement in the questions says: The virtual machine's snapshots must be used as part of the replication process. How you can achieve that? Enabling VSS quiescing. Answer is B

upvoted 3 times

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Lundu1995

1 year, 7 months ago

Selected Answer: C

mhn, ill go with C because if you install Vmware tools one part is enable vss. tricky question...

upvoted 1 times

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wpjoulekkading

1 year, 7 months ago

Vote B

upvoted 1 times

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meko88

1 year, 7 months ago

I read this in the below Link "Virtual machine snapshots are not used as part of the replication process unless VSS quiescing is enabled." I think answer should be B, not sure still https://core.vmware.com/resource/vsphere-replication-technical-overview#section3

upvoted 4 times

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[Removed]

1 year, 9 months ago

Selected Answer: B

I choose B. Quiesce: If the flag is 1 or true, and the virtual machine is powered on when the snapshot is taken, VMware Tools is used to quiesce the file system in the virtual machine. Quiescing a file system is a process of bringing the on-disk data of a physical or virtual computer into a state suitable for backups. This process might include such operations as flushing dirty buffers from the operating system's in-memory cache to disk, or other higher-level application-specific tasks. Below article is the reason. https://kb.vmware.com/s/article/2041909 https://kb.vmware.com/s/article/1015180

upvoted 3 times

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VMwareGuy123

1 year, 10 months ago

Selected Answer: B

See the comment from 'DesolateMarauder'. I'll go for B.

upvoted 5 times

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Ilmace86

1 year, 11 months ago

Selected Answer: C

My answer is C, D is not required

upvoted 3 times

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michael24

1 year, 12 months ago

D: it is the only one that makes sense, but it is not actually required. it is recommended, but it is not a hard requirement. https://docs.vmware.com/en/vSphere-Replication/8.7/com.vmware.vsphere.replication-admin.doc/GUID-16677363-4265-4815-9C1C-DAAA3AE500CD.html

upvoted 1 times

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