Exam AZ-103 topic 4 question 32 discussion

Actual exam question from Microsoft's AZ-103

Question #: 32
Topic #: 4

You have an Azure subscription that contains a virtual network named VNet1. VNet1 contains four subnets named Gateway, Perimeter, NVA, and Production.
The NVA subnet contains two network virtual appliances (NVAs) that will perform network traffic inspection between the Perimeter subnet and the Production subnet.
You need to implement an Azure load balancer for the NVAs. The solution must meet the following requirements:
✑ The NVAs must run in an active-active configuration that uses automatic failover.
✑ The NVAs must load balance traffic to two services on the Production subnet. The services have different IP addresses.
Which three actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. Add two load balancing rules that have HA Ports enabled and Floating IP disabled.
B. Add a frontend IP configuration, two backend pools, and a health probe.
C. Add two load balancing rules that have HA Ports and Floating IP enabled.
D. Deploy a standard load balancer.
E. Deploy a basic load balancer.
F. Add a frontend IP configuration a backend pool, and a health probe.

Show Suggested Answer

Suggested Answer: BCD 🗳️
A standard load balancer is required for the HA ports.
Two backend pools are needed as there are two services with different IP addresses.
Floating IP rule is used where backend ports are reused.
Incorrect Answers:
F: HA Ports are not available for the basic load balancer.
References:
https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-standard-overview https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-multivip-overview

by jall at March 9, 2020, 6:58 p.m.

Comments

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jall

Highly Voted 5 years, 4 months ago

Appears to be OK. https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-multivip-overview https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-ha-ports-overview#a-single-floating-ip-direct-server-return-ha-ports-configuration-on-an-internal-standard-load-balancer

upvoted 19 times

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nfett

Highly Voted 5 years, 2 months ago

Answer is correct. The provided documents answered it.

upvoted 5 times

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Azure4Jahid

Most Recent 4 years, 10 months ago

1. Why do we need HA port? Is it because of active-active config? 2. Why do we floating Port? Can anyone plz explain?

upvoted 1 times

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Vipin1989

5 years, 1 month ago

why we need 2 backend pools? multiple application point will be covered by HA ports

upvoted 2 times

ariahi

5 years, 1 month ago

Because you have different IPs for the two different services.

upvoted 1 times

ariahi

5 years ago

My buddy and I spent almost 2 hours on this question. Built simulations in labs, etc. There is no good answer. I am going to just move on and hope this does not come in exam. The answers given are not correct -

upvoted 1 times

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FrancisFerreira

5 years, 4 months ago

Confusing... Am I to load balance the NVAs? Or the backend services? Or both?

upvoted 4 times

Blueberries

5 years, 3 months ago

I have the same question

upvoted 1 times

Sheru

5 years, 2 months ago

The NVAs of course 'You need to implement an Azure load balancer for the NVAs'

upvoted 1 times

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