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Exam AZ-103 topic 4 question 46 discussion

Actual exam question from Microsoft's AZ-103

Question #: 46
Topic #: 4

HOTSPOT -
You have an Azure subscription named Subscription1 that contains the virtual networks in the following table.

Subscription1 contains the virtual machines in the following table.

In Subscription1, you create a load balancer that has the following configurations:
✑ Name: LB1
✑ SKU: Basic
✑ Type: Internal
✑ Subnet: Subnet12
✑ Virtual network: VNET1
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Hot Area:

Show Suggested Answer

Suggested Answer:

References:
https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-standard-overview

by deepu1207 at March 15, 2020, 6:48 p.m.

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FrancisFerreira

Highly Voted 5 years, 3 months ago

For starters, the LB can't be in Subnet12 and VNet1, as stated in the question. Something's gotta give, COME ON... Assuming Subnet11 and VNet1: Yes, No, No (given answer is correct) Assuming Subnet12 and VNet2: No, No, No (given answer is wrong)

upvoted 37 times

unknown4noone

5 years ago

If it is Subnet12 and VNet2 - then No, No and Yes right... VM5 and VM6 are in Subnet12 on VNET2 and LB1 is being configured for the same. Then isn't it a case LB1 can balance the traffic between VM5 and VM6?

upvoted 5 times

DamianDeLaVinya84

4 years, 10 months ago

But VM5 and VM6 are not on an Availability Set and LB1 sku is Basic. If it was standard LB then is a different story.

upvoted 4 times

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MatUnderTheSun

Highly Voted 5 years, 3 months ago

Is it not: No, No, Yes ? Because the LB1 is for subnet 12 which has vm 5 and VM6.

upvoted 19 times

certificatores

5 years, 3 months ago

no, no, no looks better answer since subnet 12 is in vnet2, Load balancer is vnet1

upvoted 36 times

macco455

5 years ago

Has to be a typo, vnet and LB have to be in same vnet plus subnet 12 was stated in vnet2.

upvoted 6 times

gargaditya

4 years, 5 months ago

Its No,No,No. explanation for 1 and 2: Referring to configuration of internal LB: - Name: LB1 - SKU: Basic - Type: Internal - Subnet: Subnet12 - Virtual network: VNET1 The subnet refers to backend pool whereas Virtual Network refers to what's used in the front end (and backend is a subnet in same virtual network). [https://docs.microsoft.com/en-us/azure/load-balancer/quickstart-load-balancer-standard-internal-portal?tabs=option-1-create-internal-load-balancer-standard] For 3rd one,its No due to 2 reasons: A. The LB configuration itself is incorrect as its mentioned subnet 12(used for backend pool configuration) is part of VNET2 whereas loadbalancer is attempted to be deployed in VNET1. B. Type of Loadbalancer is Basic which only accepts VMSS or Av Sets as Backend Pool. https://docs.microsoft.com/en-us/azure/load-balancer/skus

upvoted 1 times

gargaditya

4 years, 5 months ago

B.I mean SKU is 'Basic'

upvoted 1 times

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tashakori

Most Recent 1 year, 3 months ago

Correct

upvoted 1 times

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mmtechsolutionsinc

3 years, 4 months ago

answer is no, no , no why,>> Name: LB1 ✑ SKU: BASIC It ONLY supports items in the same availibility set. and Basic load balance will balance traffic in Virtual machines in a single availability set or virtual machine scale set. In this question the load balancer is assigned to subnet 12 which is in different Vnet so the answer must be No,no,no

upvoted 1 times

mmtechsolutionsinc

3 years, 4 months ago

actualy i have found out that question is different from others sorces, if question is diffrent and subnet12 is belont to Vnet1 then answer is correct check the question from different sorces,,

upvoted 1 times

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Neonlight8

4 years, 4 months ago

SKU Basic straightaway means not supporting HA means No, No. Last one is tricky says subnet 12 in vnet 1, and its actually in vnet 2. I',m not sure how they create it that way when the subnet is under vnet 2. If its in vnet1 then it does't work therefore No.

upvoted 2 times

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I

4 years, 4 months ago

The solution is correct! See here: https://docs.microsoft.com/en-us/azure/load-balancer/skus If SKU is basic, then only check the avilability set of VMs. Same then Road Balancer works otherwise doesn't.

upvoted 2 times

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RogerDingo

4 years, 6 months ago

just tested this in the lab and my results are Y, N, N in this question VMs need to be part of an availability set to be load balanced. so VM1 and VM2 can be load balanced as they are part of AS1. the other vms are not therefore they cannot be load balanced. basically i tried to add vm3 and vm4 to the LB and it failed. Same result for vm5 and vm6. *please correct me if im wrong*

upvoted 6 times

deardamon

4 years, 4 months ago

The first Q should be N. Please note, the LB is in VNet2, but VM1&VM2 are in VNet1. I also tested in the Lab, when adding a backend pool and choosing associated with VMs, it notice you that "all IP configurations must be on the same virtual network."

upvoted 1 times

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simanastasiya

4 years, 7 months ago

in exam az-104 29nov 2020

upvoted 6 times

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Thi

4 years, 8 months ago

Given answer correct if subnet is subnet11 otherwise No,No,No

upvoted 1 times

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Thi

4 years, 8 months ago

Answer No,No, No Vnet1 dont have subbet 12 so az104 page 167 tells a load balancer rule cant span two virtual networks.

upvoted 1 times

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DA0410

4 years, 9 months ago

Yes N N . Correct solution is ✑ Name: LB1 ✑ SKU: Basic ✑ Type: Internal ✑ Subnet: Subnet11 ✑ Virtual network: VNET1

upvoted 1 times

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Xtian_ar

4 years, 10 months ago

Is there a mistake in the LB information? How can you the LB connected to subnet12 if it is from a different Vnet? it say subnet12 and vnet1, subnet12 is in vnet2.

upvoted 2 times

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Shades

4 years, 11 months ago

Came in exam 1st Aug 2020

upvoted 6 times

aka_tom

4 years, 10 months ago

what is your answer Shades?

upvoted 1 times

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Gman80

4 years, 11 months ago

Guys you are missing one critical item here Name: LB1 ✑ SKU: BASIC It ONLY supports items in the same availibility set. So A is right

upvoted 4 times

Larry88

4 years, 10 months ago

that is the point

upvoted 1 times

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Gbala

4 years, 10 months ago

Good catch... Basic load balance will balance traffic in Virtual machines in a single availability set or virtual machine scale set. In this question the load balancer is assigned to subnet 12 which is in different Vnet so the answer must be No,no,no If subnet is 11 and vnet1 then the answer is Y,N,N

upvoted 4 times

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Ausias18

4 years, 11 months ago

Sorry for my latest anwers, I think there is a typo in the question as it says subnet 12, but in VNET1, so this is impossible. Thus if the LB is in VNET2 the answer is No, No, Yes If the LB is in VNET1 the answer is No, No, No

upvoted 1 times

sk1974

4 years, 11 months ago

Thus if the LB is in VNET2 the answer is No, No, Yes - The 3rd one will still be 'No' since the VM's are not part of AS and LB is a Basic SKU

upvoted 1 times

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Ausias18

4 years, 11 months ago

1 - No: LB is on different subnet. 2 - No: LB is on different subnet and VMs are not in a AS. 3 - No: VMs are not in a AS. Basic LB will only load balance VMs in a AS.

upvoted 3 times

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ariahi

4 years, 12 months ago

Just tested. You can LB between subnets but across vnets. Q is incomplete or incorrect. Vnet1 does not even have a subnet12.

upvoted 2 times

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