AZ-104 Exam - Question 388

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Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.

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You have an Azure subscription that contains the virtual machines shown in the following table.

You deploy a load balancer that has the following configurations:

✑ Name: LB1

✑ Type: Internal

✑ SKU: Standard

✑ Virtual network: VNET1

You need to ensure that you can add VM1 and VM2 to the backend pool of LB1.

Solution: You create two Standard SKU public IP addresses and associate a Standard SKU public IP address to the network interface of each virtual machine.

Does this meet the goal?

Examice · Accepted Answer

The given solution of creating two Standard SKU public IP addresses and associating them with the network interfaces of each virtual machine does not meet the goal. Since LB1 is configured as an internal load balancer, public IP addresses for the VMs are not required. Internal load balancers are used for traffic inside a virtual network, and the VMs only need to be in the same virtual network and subnet for the load balancer to work. Hence, associating standard SKU public IP addresses to VM1 and VM2 is unnecessary.

mlantonis · Answer

Correct Answer: A - Yes

You can only attach virtual machines that are in the same location and on the same virtual network as the LB. Virtual machines must have a standard SKU public IP or no public IP.

The LB needs to be a standard SKU to accept individual VMs outside an availability set or vmss. VMs do not need to have public IPs but if they do have them they have to be standard SKU. Vms can only be from a single network. When they don’t have a public IP they are assigned an ephemeral IP.

Also, when adding them to a backend pool, it doesn’t matter in which status are the VMs.

Note: Load balancer and the public IP address SKU must match when you use them with public IP addresses.

Moyuihftg · Answer

Answer correct. 
You can only attach virtual machines that are in the same location and on the same virtual network as the loadbalancer. Virtual machines must have a standard SKU public IP or no public IP.

JayLearn2022 · Answer

There are several versions of this question. The following are the correct and incorrect answers that can be presented.

Correct Answer: Meets the goal.
-Solution: You create two Standard SKU public IP addresses and associate a Standard SKU public IP address to the network interface of each virtual machine.

Incorrect Answers: Does not meet the goal.
-Solution: You disassociate the public IP address from the network interface of VM2.

-Solution: You create a Basic SKU public IP address, associate the address to the network interface of VM1, and then start VM1.

-Solution: You create a Standard SKU public IP address, associate the address to the network interface of VM1, and then stop VM2.

HALLYdre · Answer

I think the answer should be no.
The load balancer is an internal load balancer and nothing to do with SKU of a public ip is relevant in making the VMs to work.

sardonique · Answer

I don't understand, it is an internal load balancer, you place your VM behind an internal Load balancer when you do not want to expose them, what is the need of public ip in the first place? some questions are really weird

FDZ83 · Answer

Correct: YES
Tested in lab: 
no matter LB internal o public, vm in backend can keep their public ip (even if it's no sense in load balancing env...). The only requirement is SKU of public ip:
LB standard=>standard PIP
LB Basic=>basic PIP
Stopped Vm can be added to backend pool
The answers to this question could be:
-add standard public ip to vm
-remove public ip from vm

benvdw · Answer

A- on exam 13/3/2022 (the one above as well)

InvisibleShadow · Answer

This question came in the exam today 8/Mar/2022.
I passed the exam, 95% questions came from here.

kusucu · Answer

mlatonis is right

meeko86 · Answer

For this series question, there are two possible answers:
1. You create two Standard public IP addresses and associate a Standard SKU public IP address to the network interface of each virtual machine.
2. You disassociate the public IP address from the network interface of VM2.

AntaninaD · Answer

Got this question on 09/09/23

G_unit_19 · Answer

mlantonis has the correct answer

sid132 · Answer

On the exam today, 4.March.2022

DragonDagger · Answer

A is correct

EmnCours · Answer

Answer correct.
You can only attach virtual machines that are in the same location and on the same virtual network as the loadbalancer. Virtual machines must have a standard SKU public IP or no public IP.

ojogbon · Answer

On the exam Apr 2nd, 2023

tashakori · Answer

Yes is right

AZ-104 Exam - Question 388

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