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Exam AZ-300 topic 5 question 4 discussion

Actual exam question from Microsoft's AZ-300

Question #: 4
Topic #: 5

SIMULATION -
Click to expand each objective. To connect to the Azure portal, type https://portal.azure.com in the browser address bar.

When you are finished performing all the tasks, click the "˜Next' button.
Note that you cannot return to the lab once you click the "˜Next' button. Scoring occur in the background while you complete the rest of the exam.

Overview -
The following section of the exam is a lab. In this section, you will perform a set of tasks in a live environment. While most functionality will be available to you as it would be in a live environment, some functionality (e.g., copy and paste, ability to navigate to external websites) will not be possible by design.
Scoring is based on the outcome of performing the tasks stated in the lab. In other words, it doesn't matter how you accomplish the task, if you successfully perform it, you will earn credit for that task.
Labs are not timed separately, and this exam may have more than one lab that you must complete. You can use as much time as you would like to complete each lab. But, you should manage your time appropriately to ensure that you are able to complete the lab(s) and all other sections of the exam in the time provided.
Please note that once you submit your work by clicking the Next button within a lab, you will NOT be able to return to the lab.

To start the lab -
You may start the lab by clicking the Next button.
You need to deploy an Azure load balancer named ib1016 to your Azure subscription. The solution must meet the following requirements:
✑ Support the load balancing of IP traffic from the Internet to Azure virtual machines connected to VNET1016\subnet0.
✑ Provide a Service Level Agreement (SLA) of 99,99 percent availability for the Azure virtual machines.
✑ Minimize Azure-related costs.
What should you do from the Azure portal?
To complete this task, you do NOT need to wait for the deployment to complete. Once the deployment starts in Azure, you can move to the next task.

Show Suggested Answer

Suggested Answer: See explanation below.
Step 1:
On the top left-hand side of the screen, click Create a resource > Networking > Load Balancer.
Step 2:
In the Create a load balancer page enter these values for the load balancer: myLoadBalancer - for the name of the load balancer.
Internal - for the type of the load balancer.
Basic - for SKU version.
Microsoft guarantees that apps running in a customer subscription will be available 99.99% of the time.
VNET1016\subnet0 - for subnet that you choose from the list of existing subnets.
Step 3: Accept the default values for the other settings and click Create to create the load balancer.

by MGW at Nov. 23, 2019, 10:43 p.m.

Comments

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Ekramy_Elnaggar

Highly Voted 5 years, 6 months ago

1) Create Azure Load Balancer 2) Type: Public 3) SKU: Standard 4) Public IP Address : New one ( Standard ) 5) Availability zone: Zone-redundant

upvoted 55 times

Deker

5 years, 4 months ago

would you add the VNET1016\subnet0 to the backed pool of the public load balancer?

upvoted 2 times

terences

5 years, 4 months ago

remember to select "type" as internal then you can specify the VNET and subnet

upvoted 6 times

SIDNEY1

5 years, 1 month ago

No, the type needs to be public. The question clearly says the traffic's from the internet.

upvoted 3 times

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sameer2803

5 years, 2 months ago

to add to this, after the LB is created add backend pool from the given vnet/snet

upvoted 2 times

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praveen97

4 years, 11 months ago

Agree with Ekramy_Elnaggar. https://azure.microsoft.com/en-us/support/legal/sla/load-balancer/v1_0/

upvoted 1 times

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MGW

Highly Voted 5 years, 7 months ago

SLA=99,99 is not equal to Basic: We guarantee that a Load Balanced Endpoint using Azure Standard Load Balancer, serving two or more Healthy Virtual Machine Instances, will be available 99.99% of the time. Basic Load Balancer is excluded from this SLA.

upvoted 18 times

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AhmedAL

Most Recent 4 years, 8 months ago

ok but needs standard SKU

upvoted 1 times

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nabylion

4 years, 9 months ago

https://docs.microsoft.com/en-us/azure/load-balancer/skus No SLA for basic SKU. 99.99% SLA for standard

upvoted 1 times

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sinslam

4 years, 11 months ago

1. Support the load balancing of IP traffic from the Internet to Azure virtual machines connected to VNET1016\subnet0: Create a Public LB in the same location of the VNet 2. Provide SLA of 99,99 percent: SKU Standard 3. Minimize Azure-related costs: Availability zone 2 No need to set up the backend pool. The question says do not wait for the deployment to complete. Since the LB is in the same location as the VNet, it is guaranteed you can connect the VMs on the subnet to the backend pool.

upvoted 4 times

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Nitink

5 years ago

just deploy standard load balancer in vnet VNET1016. This will ensure that any machines under this vnet can be part of it

upvoted 1 times

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pattasana

5 years, 1 month ago

No SLA is provided for Basic Load Balancer. It's obvious

upvoted 1 times

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PierroD

5 years, 1 month ago

Two solution, I don't know which one is the best ? - Internal with VNet/Subnet assigned but not "IP traffic from the Internet". - Public with every VM of subnet0 in manual, but not new VMs of subnet0.

upvoted 1 times

tmurfet

5 years ago

"Support" the load balancing of IP traffic from the Internet. I think this indicates public LB exists. That, and the name "ib1016" leads us to an internal load balancer, which fits the rest of the screnario.

upvoted 1 times

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AnshMan

5 years, 1 month ago

Simple, In order to achieve 99.99% SLA for VMs.... okay VMs, we need Availability Zone. With Basic you cannot create AZ, so we should select the Standard SKU during the load balancer creation.

upvoted 1 times

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ReffG

5 years, 1 month ago

It mentions IP traffic form the Internet so it should be public, but for a public LB you cannot select the VNET\Subnet0...what should one go for?? Basically a public LB still can load balance the traffic to machines in that subnet but backendpool config Looks different...

upvoted 1 times

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Rishabhjain

5 years, 2 months ago

Agreed, Basic SKU is excluded from 99.99% SLA commitment. https://azure.microsoft.com/en-us/support/legal/sla/load-balancer/v1_0/

upvoted 1 times

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TYT

5 years, 2 months ago

Create a Load Balancer Standard Internal - so you can assign the VNET and Subnet Public IP - New Availability Zone - Zone Redundant. If you select Public, then you can go to backend pools and add the VNET but I don't see an option for adding a Subnet to the LB in the back end pool.

upvoted 2 times

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qr

5 years, 3 months ago

1) Create Standard Sku LB 2) Assign subnet0 to the backend pool of the LB

upvoted 3 times

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NeerajKS

5 years, 4 months ago

Basic Load Balancer does not provide 99.99 % uptime guarantee. There is no MS Document or article referring to that. Rather it says "No SLA is provided for Basic Load Balancer". So choose Standard for SKU. https://azure.microsoft.com/en-us/support/legal/sla/load-balancer/v1_0/

upvoted 2 times

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