Exam 2V0-642 topic 1 question 49 discussion

Actual exam question from VMware's 2V0-642

Question #: 49
Topic #: 1

An administrator is deploying NSX to secure the virtual environment. NSX Manager has been deployed and registered with the vCenter server.
Which additional step is required before the distributed firewall is functional?

A. Deploy the NSX Controller cluster
B. Enable Guest Introspection
C. Perform host preparation on the cluster
D. Configure VTEPs on each host

Show Suggested Answer

Suggested Answer: C 🗳️
Reference:
https://esxsi.com/2017/01/18/nsx-part1/

by ego004 at Oct. 9, 2019, 8:06 a.m.

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nxt_RTX5

5 years ago

Answer is A: 1: Deploy NSX Manager 2: Register NSX Manager with vCenter Server 3: Deploy NSX Controllers 4: Prepare hosts 5: Configure logical networking, deploy and configure NSX ESGs and configure network services

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cthd

5 years ago

Basically, you have to choose the best answer...in this case, C is better than A as the former is more relevant to DFW...

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cthd

5 years ago

Basically, you have to choose the best answer...in this case, C is a better that A as the former is more relevant to DFW...

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NorthStar2010

5 years ago

After reviewing my training notes, I'll go for C "Host preparation". DFW is just another feature in NSX and you can implement DFW without implementing VXLAN. VXLAN being handled by "NXS Controller cluster". There are two User world agents "vsfwd" and "netcpa". The vsfwd if for the DFW which communicates with the NSX Manager directly through the message bus while netcpa communicates with the NSX controller cluster via the TCP over SSL. NSX Controller Cluster communicates with NSX Manager via Internal REST APIs.

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NorthStar2010

5 years ago

This is related to question #51, NSX micro-segmentation only requires DFW, not VXLAN

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NorthStar2010

5 years ago

The answer is A, see page 14 https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/products/nsx/vmw-nsx-network-virtualization-design-guide.pdf

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Me_Loi1

5 years, 1 month ago

The official workflow for overaly networking with NSX-V is: Deploy NSX-V Manager -> Register with vCenter Server -> Deploy Controller Cluster -> Prepare Hosts -> Create Logical Stuff. For real world DFW use-cases like Micro-Segmentation there is no Controll Cluster required thus only host preparation is needed: Deploy NSX-V Manager -> Register with vCenter Server -> Prepare Hosts for DFW.

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vmnoob

5 years, 4 months ago

This is a really bad question, I understand that host prep is required for DFW but having controllers deployed is a prerequisite of host prep. See below, copied from the link provided by NGA. Prerequisites Register vCenter Server with NSX Manager and deploy NSX controllers.

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