VMware 2V0-51.23 Exam - Topic 1 Question 3 Discussion

Actual exam question for VMware's 2V0-51.23 exam

Question #: 3
Topic #: 1

An end-user is experiencing a black screen when connecting to their virtual desktop. After a few seconds, the connection closes. Which could be the cause of the issue? (Choose three.)

AThere is a vRAM shortage on the Horizon virtual machine.

BThe Client machine video memory is too high.

CThe incorrect video driver version is installed on the Horizon virtual machine.

DThe Horizon Virtual Machine video memory is too high.

EThere is an incorrect firewall configuration.

Show Suggested Answer

Suggested Answer: A, C, E

A black screen when connecting to a Horizon virtual desktop can be caused by various reasons, such as network issues, hardware issues, Horizon tunnel issues, or underlying guest operating system issues. Based on the options given, the following could be the cause of the issue:

A vRAM shortage on the Horizon virtual machine. This can affect the display performance and cause a black screen or a disconnect.To resolve this issue, you should configure the pool to provide enough video memory for the resolutions you plan to present to the clients1.

The incorrect video driver version installed on the Horizon virtual machine. This can cause compatibility issues and prevent the display protocol from working properly.To resolve this issue, you should verify that the View desktop is using the correct video driver and that it is compatible with the VMware Tools and Horizon Agent versions installed23.

An incorrect firewall configuration. This can block or misroute the display protocol traffic and cause a connection failure.To resolve this issue, you should verify that the required ports are open between the client, UAG/Security server/Connection server, and VDI machine4.

The other options are not likely to cause a black screen when connecting to a Horizon virtual desktop:

The client machine video memory is too high. This should not affect the display protocol performance or cause a black screen. The client machine video memory is only used to render the display on the local device, not on the remote desktop.

The Horizon virtual machine video memory is too high. This should not cause a black screen or a disconnect either. The Horizon virtual machine video memory is used to allocate resources for the display protocol on the server side, not on the client side.

Dual monitors configured using PCoIP does not span both the monitors for VMware View and Connecting to a VDI desktop with PCoIP displays a black screen and disconnects after 10 seconds

Error attaching to SVGADevTap, error 4000: EscapeFailed reported by PCoIP server

Interoperability Matrices

Configuring PCoIP Secure Gateway in VMware View

[Network Ports in VMware Horizon]

by Sheron at Feb 12, 2024, 12:46 AM

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Shenika

3 months ago

Yeah, I agree with the driver version being a likely culprit.

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Vicki

3 months ago

High video memory? Really? That seems odd.

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Victor

3 months ago

No way, it’s probably a firewall config problem.

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Milly

4 months ago

I think it might be the video driver version.

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Alyce

4 months ago

A vRAM shortage could definitely cause that issue.

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Dante

4 months ago

I’m uncertain about the client machine's video memory being too high. I thought that would only affect performance, not the connection itself.

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Simona

4 months ago

I feel like firewall configurations can sometimes cause connection issues, but I can't recall if it would lead to a black screen specifically.

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Shenika

4 months ago

I think the video driver version could definitely be a factor. We practiced a similar question about driver compatibility last week.

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Izetta

5 months ago

I remember something about vRAM shortages causing issues, but I'm not sure if it's the main reason for a black screen.

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Staci

5 months ago

I'm a little confused by this question. There are a lot of potential causes listed, and I'm not sure which ones are the most relevant. I'll need to re-read the question and options a few times to make sure I understand what they're looking for.

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Ira

5 months ago

Okay, I've got this. The video memory on either the client or the virtual machine is probably too high, causing the black screen and connection issues. And an incorrect video driver version on the VM could also be the problem. I'll make sure to select those three options.

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Francoise

5 months ago

Hmm, I'm a bit unsure about this one. There are a few different options here, and I'm not totally sure which ones are the most likely culprits. I'll need to think through the virtual desktop setup and potential points of failure carefully.

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Dorthy

5 months ago

This seems like a pretty straightforward question. I'll focus on the key details - the black screen, the connection closing after a few seconds, and the virtual desktop environment. I think the most likely causes are related to the video configuration, either on the client or the virtual machine side.

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Diego

5 months ago

This seems like a tricky one, but I think I've got a good strategy. I'll focus on the video-related issues first, since that seems to be the core of the problem. The vRAM shortage, incorrect video driver, and high video memory on either the client or VM are the most likely culprits, so I'll select those.

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Alesia

5 months ago

This looks like a pretty straightforward MPLS VPN question. I think I can handle this one.

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Alexia

5 months ago

Hmm, I'm a little unsure about this one. I'll need to review my notes on the Appointed Actuary's role and responsibilities to make sure I understand the nuances here.

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Lenita

5 months ago

Hmm, I'm a bit confused. If the Order Letter process is a sub-process, does that mean it's not counted separately? And how do we know the number of instances for each process? I'll need to re-read the question carefully to make sure I understand it fully.

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Maxima

5 months ago

Hmm, I'm a bit unsure about this one. I know antennas have side lobes, but I'm not sure if the radiated power is "basically distributed" to them. Let me think this through carefully.

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