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Microsoft Discussions

Exam AZ-104 topic 5 question 14 discussion

Actual exam question from Microsoft's AZ-104
Question #: 14
Topic #: 5
[All AZ-104 Questions]

You have an Azure web app named webapp1.
You have a virtual network named VNET1 and an Azure virtual machine named VM1 that hosts a MySQL database. VM1 connects to VNET1.
You need to ensure that webapp1 can access the data hosted on VM1.
What should you do?

  • A. Deploy an internal load balancer
  • B. Peer VNET1 to another virtual network
  • C. Connect webapp1 to VNET1
  • D. Deploy an Azure Application Gateway
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by Az209co at Oct. 2, 2020, 7:01 a.m.

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Az209co
Highly Voted 3 years, 2 months ago
I think the answer should be C. <https://docs.microsoft.com/en-us/azure/app-service/web-sites-integrate-with-vnet>
upvoted 89 times
jantoniocesargatica
2 years, 7 months ago
You are unable to connect a Webapp to a Vnet, if the Vnet is not empty. In this case there is a VM.
upvoted 4 times
slimjago
2 years, 6 months ago
based on that, webapp needs it's own VNET, right? which could be peered with VNET1. what do you think?
upvoted 3 times
a4andrew
2 years, 1 month ago
webapp only needs it own empty(not delegated nor has any resources within) subnet, not VNET (which can contain many subnets) and a /29 subnet is the smallest you can use for such a service.
upvoted 9 times
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tita_tovenaar
2 years, 5 months ago
correct but the network integrator in app service lets you create a subnet in the same vnet, precisely for this scenario.. check the ref above ;-)
upvoted 5 times
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luxaflow
2 years, 2 months ago
This is correct, tested in Lab: Was able to connect webapp to a VNet containing a VM. During connection creation, was requested to create a new subnet.
upvoted 7 times
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fedztedz
Highly Voted 2 years, 11 months ago
Answer is wrong. It should be "C" Connect the webapp to VNET using webapp VNET integration. where webapp can access the resources in the VNET.
upvoted 81 times
Appu008
2 years ago
Wrong, the answer is D only. Because there is no mention that VM1 is in Vnet1, its is said that VM1 only connects to Vnet1 (it is mentioned to distract students towards wrong answer)
upvoted 5 times
shash_ank
1 year, 6 months ago
Once a VM is connected to a VNET, it is part of that VNET, it is inside that VNET. VM connecting to VNET and VM being inside a VNET is one and the same. Don't overthink, it induces wrong answers
upvoted 7 times
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dasEnder
1 year, 7 months ago
What is the difference if a VM?? A VM cannot be in two VNets so, if has a NIC in the VNet is in it. Only if you consider that the VM connects using a VPN or peered or any networking. I think this is not what it means here. Also if is not in VNet1, where?
upvoted 1 times
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itgg11
1 year, 10 months ago
Answer is C. tested in the lab. web app pricing plan needed to be upgraded to Standard. There must be a vnet with a subnet that is not being used. If the subnet is used, you can create a new one.
upvoted 4 times
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PersonT
2 years, 4 months ago
True https://docs.microsoft.com/nl-nl/azure/application-gateway/overview
upvoted 3 times
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sabin001
2 years, 1 month ago
Correct! VNet integration feature enables your apps to access resources in or through a VNet.
upvoted 1 times
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amsioso
Most Recent 1 day, 9 hours ago
Answer D You need to acces the MySQL database, not to integrate webapp1 in VNET1.
upvoted 1 times
amsioso
1 day, 9 hours ago
https://learn.microsoft.com/en-us/azure/application-gateway/features
upvoted 1 times
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Yaruk
3 months, 1 week ago
Selected Answer: C
so simple question, why do they provide incorrect answer?
upvoted 2 times
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oopspruu
3 months, 3 weeks ago
Selected Answer: C
You can simply create a new subnet within the same vNET and connect the webapp to it. There's no need to make the solution complex by involving Application Gateway here.
upvoted 1 times
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Teroristo
4 months, 2 weeks ago
Answer is Connect webapp1 to VNET1 The VNet Integration feature has two variations: - Regional VNet Integration: When you connect to Azure Resource Manager virtual networks in the same region, you must have a dedicated subnet in the VNet you're integrating with. - Gateway-required VNet Integration: When you connect to VNet in other regions or to a classic virtual network in the same region, you need an Azure Virtual Network gateway provisioned in the target VNet. Note: If the VNet is in the same region, either create a new subnet or select an empty preexisting subnet. The resources inside a VNet can communicate. Reference: https://docs.microsoft.com/en-us/azure/app-service/web-sites-integrate-with-vnet
upvoted 1 times
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Sri944
5 months ago
The best approach to enable webapp1 to access the data hosted on VM1 in this scenario would be to establish a secure and direct connection between the web app and the virtual machine without involving Azure Application Gateway.
upvoted 1 times
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medaziz
6 months, 1 week ago
I think the web app is a PaaS service so it has a public IP so either we use private link or Azure Application Gateway
upvoted 1 times
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Kimoz
9 months ago
c is the correct answer
upvoted 1 times
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skydivex
9 months, 2 weeks ago
the best answer is D.... application gateway would provide a perfect option for webapp to connect to your resources, such as virtual machines or storage accounts. Connecting web app to a VNET requires specific subnet creation and few other items and consideration. It would not be my first choice if it is my own network. but it would definitely doable. https://learn.microsoft.com/en-us/azure/application-gateway/overview
upvoted 2 times
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CyberKelev
9 months, 2 weeks ago
Selected Answer: C
The correct answer is C. Connect webapp1 to VNET1. By connecting the web app to the virtual network, you can enable access from the web app to resources on the virtual network, including the MySQL database hosted on VM1. This can be done by enabling VNet Integration for the web app and then selecting VNET1 as the virtual network to integrate with. Once the integration is set up, the web app will be able to communicate with VM1 on VNET1 as if it were on the same network. Option A, deploying an internal load balancer, is not necessary in this scenario, as load balancing is not required. Option B, peering VNET1 to another virtual network, is also not necessary for this scenario, as it does not address the requirement to enable communication between the web app and the MySQL database hosted on VM1. Option D, deploying an Azure Application Gateway, is not necessary for this scenario, as it is primarily used for load balancing and routing of HTTP/HTTPS traffic. It does not address the requirement to enable communication between the web app and the MySQL database hosted on VM1.
upvoted 7 times
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ConanBarb
9 months, 2 weeks ago
Selected Answer: C
C "Azure Application Gateway is a web traffic load balancer that enables you to manage traffic to your web applications."
upvoted 1 times
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omgMerrick
10 months, 1 week ago
Selected Answer: C
C is the correct answer. By connecting webapp1 to VNET1 (answer C), the web app will be able to access the data hosted on VM1 through the virtual network. The other options do not directly address the requirement to allow webapp1 access to the data hosted on VM1. An internal load balancer and a peered virtual network may provide other benefits, but they would not by themselves ensure that webapp1 can access the data hosted on VM1. An Azure Application Gateway is a reverse proxy that is often used for load balancing, SSL termination, and URL-based routing, but it would not directly allow webapp1 to access the data hosted on VM1.
upvoted 2 times
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jp_mcgee
1 year ago
Corect Answer C: C. Connect webapp1 to VNET1 "The App Service virtual network integration feature enables your apps to access resources in or through a virtual network." https://learn.microsoft.com/en-us/azure/app-service/overview-vnet-integration D. Deploy an Azure Application Gateway "Azure Application Gateway is a web traffic load balancer that enables you to manage traffic to your web applications." see here: https://learn.microsoft.com/en-us/azure/application-gateway/overview
upvoted 4 times
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EmnCours
1 year, 3 months ago
Selected Answer: C
Correct Answer: C
upvoted 2 times
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nkhan19
1 year, 5 months ago
Selected Answer: C
VNet Integration can be used
upvoted 2 times
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Lazylinux
1 year, 5 months ago
Selected Answer: C
C is correct and means is VNET integration
upvoted 2 times
Lazylinux
1 year, 5 months ago
More info Azure Web App – VNET Integration Since we know that Azure Web App is predominately for public access and that is does NOT have Internal IP address therefore it is NOT possible for either the Azure Web App or internal Apps or DBS to communicate with each other and this is where VNET INTEGRATION comes into play. It Allows App Service to access the resources within the VNET VNET Integration allows ONLY the Azure Web App to communicate internally and NOT other way round I.e. internal Apps cannot communicate directly with Azure Web APP. Example => lets say we have Azure Web App called AppDB and this App needs to communicate with internal Database VM in order to process requests, this can only be done via VNET Integration where AppDB initiates the contact with DB VM and the DB VM will pass back the required information in order to satisfy the request BUT DB VM or any other internal VM can NEVER make direct communication with AppDB I.e. IT DOES NOT allow private inbound access to your Web App (AppDB) from the virtual Network. As per diagram below
upvoted 8 times
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