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Exam 3V0-21.21 All Questions

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Exam 3V0-21.21 topic 1 question 28 discussion

Actual exam question from VMware's 3V0-21.21
Question #: 28
Topic #: 1
[All 3V0-21.21 Questions]

As part of a new hybrid cloud initiative for a large financial company, the customer technical team is presenting an overview of the current state of the infrastructure and their vision for a new solution.
The project team captures notes during the presentation and adds them to the discovery documentation.
Which of the listed statements is a design constraint?

  • A. The applications are created in-house with in-guest recovery protection
  • B. The maximum tolerable data loss is 10 minutes
  • C. The two data center locations have a network latency of 8 ms round-trip time (RTT)
  • D. The existing storage is out of maintenance
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Suggested Answer: C 🗳️
by estornudo at April 5, 2021, 12:16 p.m.

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primanturin
Highly Voted 1 year, 9 months ago
I would say C over D. Customer talks about a new Hybrid cloud solution. Therefore, vSAN comes to my mind as a great solution regarding storage and Hybrid cloud. Based on the following information, network latency of 8 ms RTT will be considered a design constraint. Data Site to Data Site Network Latency : Data site to data site network refers to the communication between non-witness sites, in other words, sites that run virtual machines and hold virtual machine data. Latency or RTT (Round Trip Time) between sites hosting virtual machine objects should not be greater than 5msec (< 2.5msec one-way). https://core.vmware.com/resource/vsan-stretched-cluster-guide#sec7310-sub3 In addition, as this is a VMware VCAP, probably the best answer will be a VMware solution :)
upvoted 15 times
nemisis95
1 year, 9 months ago
Agreed. 5ms for SDDC site to site. D can be a risk, not a constraint.
upvoted 3 times
primanturin
1 year, 9 months ago
exactly - D is a risk and C a constraint
upvoted 1 times
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hansel
1 year, 9 months ago
Agreed - C is the design constraint in this question. D is a risk
upvoted 4 times
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nemisis95
1 year, 9 months ago
C talks about "2 data centers" with network latency of 8 ms round-trip time (RTT) Networking Requirements for vSAN Maximum of 1 ms RTT for standard (non-stretched) vSAN clusters between all hosts in the cluster Maximum of 5 ms RTT between the two main sites for stretched clusters Maximum of 200 ms RTT from a main site to the vSAN witness host https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-planning.doc/GUID-AFF133BC-F4B6-4753-815F-20D3D752D898.html
upvoted 3 times
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VCIX_Chris
Most Recent 6 months, 1 week ago
Selected Answer: C
D is a risk
upvoted 3 times
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PSE_IT
9 months ago
Selected Answer: C
C is a constraint, D is a risk. Agree with hansel
upvoted 2 times
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leoclyen
1 year ago
Selected Answer: C
Agree with Tachinsky and others. D is a risk, C is a constraint for vSAN stretched cluster design.
upvoted 1 times
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Tachinsky
1 year, 6 months ago
A: Requirement B: Requirement C: Constraint D: Risk
upvoted 2 times
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nemisis95
1 year, 9 months ago
Could be C too.
upvoted 2 times
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nemisis95
1 year, 11 months ago
D. I'll keep it simple
upvoted 1 times
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Moda
1 year, 12 months ago
I feel like D is more as a risk, and would it be C?? not sure, any other inputs
upvoted 2 times
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CloudRRA
2 years ago
maybe C ?? No design decision here (RTT between DC)
upvoted 1 times
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andy33
2 years ago
I think D is correct.
upvoted 2 times
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estornudo
2 years ago
Is it C?
upvoted 1 times
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C (25%)
B (20%)
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