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Exam AZ-500 topic 6 question 6 discussion

Actual exam question from Microsoft's AZ-500

Question #: 6
Topic #: 6

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You have an Azure subscription that is linked to an Azure AD tenant and contains the virtual machines shown in the following table.

The subnets of the virtual networks have the service endpoints shown in the following table.

You create the resources shown in the following table.

For each of the following statements, select Yes if the statement is true. Otherwise, select No.

NOTE: Each correct selection is worth one point.

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Suggested Answer:

by liorh at May 21, 2023, 11:35 a.m.

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billo79152718

Highly Voted 2 years ago

Yes, No, No is correct

upvoted 16 times

schpeter_091

6 months, 2 weeks ago

Y,N,N About the last one, the authentication: How could someone authenticate with MFA using a private IP?! It needs a public IP.

upvoted 2 times

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femzy

1 year, 5 months ago

YNY Connections from VM1 to storage1 always use IP address 10.1.1.5. Yes: VM1 is connected to VNET1/Subnet1 Connections from VM2 to Vault1 always use IP address 20.224.219.230. No: VM2 will use its private IP address within the VNET to connect to Vault1 since both are within the same VNET (VNET1) and there is a service endpoint for Microsoft.KeyVault in VNET1/Subnet2. We are trying to use the Microsoft Backbone Network. Authentication from VM3 to the tenant uses either IP address 10.11.1.5 or 40.122.155.212. Yes: VM3 can use its private IP for internal Azure traffic but would use its public IP for communication over the internet, such as authentication with Azure services that are not part of the VNET.

upvoted 4 times

Jimmy500

11 months, 2 weeks ago

Question does not say tenant part of Vnet then it will use public ip, you say it also in your last statement and you choose Yes for third one

upvoted 1 times

ITFranz

2 months, 1 week ago

TO SUPPORT ANSWER 3. VM3 authenticates to Azure AD using its public IP address (40.122.155.212). The private IP (10.11.1.5) is irrelevant for external Azure AD authentication unless Private Link is explicitly configured.

upvoted 1 times

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xcapell

Highly Voted 2 years ago

Good explanation in following link https://stackoverflow.com/questions/73769449/azure-difference-between-service-endpoint-and-private-endpoint-in-simple-terms

upvoted 12 times

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randy0077

Most Recent 2 months, 3 weeks ago

Yes, No, NO: https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-service-endpoints-overview#:~:text=Service%20Endpoints%20enables%20private%20IP%20addresses%20in%20the%20VNet%20to%20reach%20the%20endpoint%20of%20an%20Azure%20service%20without%20needing%20a%20public%20IP%20address%20on%20the%20VNet.

upvoted 1 times

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JackGelder

7 months ago

Why do you all say that VMs use private IP to communicate just because there are service endpoints? We have no information about if KeyVault and StorageAccount firewalls are configured to connect via VNETs

upvoted 1 times

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pentium75

10 months, 2 weeks ago

Given answer is correct. YES - Service Endpoint itself has public IP (contrary to Private Endpoint), but still traffic originates from private IP NO - see above NO - Azure AD / Entra ID a public service on public IP, thus it uses public IP only

upvoted 2 times

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ITFranz

11 months, 2 weeks ago

To support the question. https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-service-endpoints-overview Virtual Network (VNet) service endpoint provides secure and direct connectivity to Azure services over an optimized route over the Azure backbone network. Endpoints allow you to secure your critical Azure service resources to only your virtual networks. Service Endpoints enables private IP addresses in the VNet to reach the endpoint of an Azure service without needing a public IP address on the VNet. The Microsoft.AzureActiveDirectory tag listed under services supporting service endpoints is used only for supporting service endpoints to ADLS Gen 1. Microsoft Entra ID doesn't support service endpoints natively. Answer = Y- N-N

upvoted 1 times

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Zuurpruim

1 year, 7 months ago

I would go for Y,N,Y. 1. You connect to a Service Endpoint (Storage1) therefore you’ll use the private IP as outgoing. So the answer is Yes 2. You connect to a Service Endpoint (Vault1) Therefore you’ll use the private IP as outgoing. So the answer is No. 3. This is a wild guess, I would say both It might depend where to authenticate to. So I would go for Yes.

upvoted 2 times

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Neverwinter

1 year, 9 months ago

They still travel internally when going to another service endpoint in your tenant the service vs private is just that the service is also publicly routable if needed vs a private is only internal. Answers are Correct

upvoted 1 times

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heatfan900

1 year, 10 months ago

THEY ARE REFERENCING A SERVICE ENDPOINT, NOT A PRIVATE ENDPOINT. THE ANSWERS ARE : N, Y, Y connections from VM1 to STORAGE 1 will always use PUBLIC IP connection from VM2 to VAULT 1 will always use PUBLIC IP authentication from VM3 to TENANT can use either PRIVATE or PUBLIC because it has no SERVICE ENDPOINT. Knew this already but the diagram here outlines it perfectly: https://stackoverflow.com/questions/73769449/azure-difference-between-service-endpoint-and-private-endpoint-in-simple-terms

upvoted 11 times

allen008

1 year, 9 months ago

The link provided seems to suggest that the default (NO Private Endpoint or Service Endpoint configured) would use the Public IP address of the VM. Would this NOT make item#3 = NO - since 10.11.1.5 is not an option for the communicate. Questions asks 10.11.1.5 OR 40.122.155.212 - according to the link 10.11.1.5 is not an option.

upvoted 2 times

allen008

1 year, 9 months ago

Just noticed this also... the link seems to suggest that when using a Service Endpoint the source IP address of the VM uses the Private IP. That would potentially change Item#2. Can anyone provide clarification?

upvoted 2 times

Codelawdepp

1 year ago

Misunderstood. Long studying sessions can make you tired :-) If the VMs use Service Endpoints, they utilize their private IP to then communicate with the public storage account. 1: Yes: VM1 uses the Service Endpoint and therefore utilizes the private IP address. 2: No: VM2 also uses the Service Endpoint and therefore utilizes the private IP address. 3: Yes: VM3 can use its private IP for internal Azure traffic but would use its public IP for communication over the internet, such as authentication with Azure services that are not part of the VNET. The virtual machine will use its private IP to communicate with the public endpoint of the storage account. Other reference: Difference between private endpoint and service endpoint.

upvoted 1 times

Jimmy500

11 months, 2 weeks ago

Why do you chose Yes for the third one even you say vm will use public ip only with tenant.

upvoted 2 times

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Self_Study

1 year, 10 months ago

On an exam on 7/8/23, agree with the answer provided.

upvoted 4 times

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liorh

2 years ago

what is the correct answer?

upvoted 1 times

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