Exam 1Y0-204 topic 1 question 153 discussion

A Not C: because machines can communicate with the DELIVERY CONROLLER but user need resorces on VDA

it's A - "VDA is a relatively small piece of software that gets installed on all virtual and physical machines running a Windows/Linux server and/or desktop operating system as part of our XenDesktop Site, making their resources remotely available to users."

ONLY the DELIVERY CONROLLERS communicate with the Site database and NOT the VDAs. That is the FMA architecture since version 7.x. Therefore, A is the correct answer.

obviously A is correct

A https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/technical-overview.html The VDA enables the machine to register with the Controller, which in turn allows the machine and the resources it is hosting to be made available to users No database he register with the Controller,

Unless my knowledge is outdated, from my understanding VDA only talks to DDC for device registration, and Citrix gateway or client receiver / workspace for ica session.

It is A. The only machines that communicate with the Site database are the Delivery Controllers.

I think A. Here is the reason why. If the VDA isnt installed the user will never be able to access the machine that would give the user access to the resources on that machine. Yes the VDA does have to communicate with the DC then site database. I think this is the old Chicken and egg theory of what came first. Both Technically can be correct but in this case i think the resource order will have to win out as the VDA communicates with the DC first then site DB.

"A" is correct VDA package is a set of many services. One of them is ICA/HDX protocol that integrated with RDS services to allow users to access a session host. VDA also communicated with DDCs but not a Site DB directly.

You need VDA and communicate to DC to register on Delivery Controller, the right answer is C because you need a VDA software component and Network communication with DC to success deploy.

How can they communicate with the DC without the VDA? They could still launch locally installed apps like Office.

I think it's C