CompTIA CNX-001 Exam - Topic 4 Question 4 Discussion

Actual exam question for CompTIA's CNX-001 exam

Question #: 4
Topic #: 4

SIMULATION

A network administrator needs to resolve connectivity issues in a hybrid cloud setup. Workstations and VMs are not able to access Application A. Workstations are able to access Server B.

INSTRUCTIONS

Click on workstations, VMs, firewalls, and NSGs to troubleshoot and gather information. Type help in the terminal to view a list of available commands.

Select the appropriate device(s) requiring remediation and identify the associated issue(s).

If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

ASee explanation below

Show Suggested Answer

Suggested Answer: A

Firewalls VPN tunnel down

The IPsec tunnel between on-prem Firewall 1 and cloud Firewall 2 (ipip0/ipip2) is down, so no traffic can traverse to the cloud.

Application NSG Misconfigured rule

There's a ''block'' rule for 10.3.9.0/24 192.2.1.0/24, preventing legitimate on-prem clients from reaching Application A.

by Jamika at Jun 16, 2025, 05:40 AM

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Marcos

5 months ago

Definitely check the NSGs for any rules blocking access.

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Crista

5 months ago

Wait, how can they access one server but not the app? That’s weird.

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Brynn

5 months ago

Workstations can access Server B but not Application A.

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Carlota

6 months ago

I disagree, it might be a routing problem instead.

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Dannie

6 months ago

Sounds like a firewall issue to me.

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Carylon

6 months ago

I think I read somewhere that if workstations can access Server B, it might not be a network-wide issue. Maybe it's specific to Application A?

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Rhea

6 months ago

I feel a bit lost on what to click first. Should I start with the workstations or go straight to the firewalls?

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Laticia

7 months ago

This scenario feels similar to that practice question about VM access. I think checking the NSGs first might be a good idea.

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Osvaldo

7 months ago

I remember we practiced troubleshooting connectivity issues, but I'm not sure if it's a firewall or NSG problem here.

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Okay, this looks like a tricky one, but I think I can handle it. I'll start by checking the help menu to see what commands are available, then I'll start exploring the different devices and their connectivity. I'm sure I can find the root cause of the issue if I take a methodical approach.

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Celestina

7 months ago

Alright, let's do this! I'm feeling confident that I can figure out the issue here. First, I'll check the workstations and VMs to see if I can identify any obvious problems. Then I'll move on to the firewalls and NSGs to see if there are any rules or settings that need to be adjusted.

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Royce

7 months ago

I'm a bit confused by the hybrid cloud setup, but I think the key is to focus on the connectivity between the workstations, VMs, and Server B. If the workstations can access Server B, then the issue must be with Application A. I'll start there and see if I can identify any firewall or network security group rules that might be blocking access.

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Erasmo

8 months ago

Hmm, this seems like a tricky one. I'll start by checking the help menu to see what commands are available to troubleshoot the network. Then I'll try to gather as much information as I can about the different devices and their connectivity.

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Willard

8 months ago

Okay, let's take a look at this step-by-step. First, I'll check the workstations and VMs to see if I can identify any connectivity issues. Then I'll move on to the firewalls and NSGs to see if there are any rules or settings that could be causing the problem.

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Tayna

10 months ago

Seriously, who designs these hybrid cloud setups? It's like a labyrinth of firewalls, NSGs, and VMs. Time to put on my detective hat!

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Lorrie

10 months ago

Ah, the joys of troubleshooting hybrid cloud setups. I bet the issue is that the VMs are stuck in a parallel universe, trying to access Application A.

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