Exam 3V0-624 topic 1 question 14 discussion

Actual exam question from VMware's 3V0-624

Question #: 14
Topic #: 1

A company is in the process of deploying a modern video-streaming application.
✑ The application is able to scale (expand and collapse) its streaming nodes in the form of CentOS 7.x 64bit virtual machines, based on demand.
✑ This IO-Intensive application has a high CPU demand and generates a significant number of disk operations (IOPS).
✑ To host the application, the company decided to implement a brand-new VMware cluster with vSphere 6.x.
✑ The company would like a significant reduction in CPU utilization as well as possible increase in throughput.
Which virtual disk adapter should be recommended for the company's physical design?

A. LSI Logical Parallel
B. VMware Paravirtual
C. BusLogic Parallel
D. LSI Logic SAS

Show Suggested Answer

Suggested Answer: B 🗳️
Reference -
http://virtuallyhyper.com/2012/09/vcap5-dcd-objective-3-5-determine-virtual-machine-configuration-for-a-vsphere-5-physical-design/

by diegof1 at Sept. 17, 2019, 2:41 a.m.

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diegof1

Highly Voted 5 years, 9 months ago

B is correct. According to documentation, PVSCSI adapters are high performance that can provide high throughput and low CPU consumption. https://pubs.vmware.com/workstation-9/index.jsp?topic=%2Fcom.vmware.ws.using.doc%2FGUID-A0438F6C-6651-4A38-853A-0A7A494E23DF.html

upvoted 10 times

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chafik

Most Recent 4 years, 3 months ago

Correct Answer:B

upvoted 1 times

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AdhamELHariry

4 years, 4 months ago

VMware Paravirtual is correct.

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lotso

4 years, 10 months ago

B. VMware Paravirtual (aka PVSCSI) – this vSCSI controller is virtualization aware and was been designed to support very high throughput with minimal processing cost and is therefore the most efficient driver. In the past, there were issues if it was used with virtual machines that didn’t do a lot of IOPS, but that was resolved in vSphere 4.1. https://blogs.vmware.com/vsphere/2014/02/vscsi-controller-choose-performance.html

upvoted 1 times

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