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Exam AZ-305 topic 3 question 3 discussion

Actual exam question from Microsoft's AZ-305

Question #: 3
Topic #: 3

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 need to deploy resources to host a stateless web app in an Azure subscription. The solution must meet the following requirements:
✑ Provide access to the full .NET framework.
Provide redundancy if an Azure region fails.

✑ Grant administrators access to the operating system to install custom application dependencies.
Solution: You deploy two Azure virtual machines to two Azure regions, and you create an Azure Traffic Manager profile.
Does this meet the goal?

A. Yes
B. No

Show Suggested Answer

Suggested Answer: A 🗳️

by Eltooth at Dec. 13, 2021, 4:44 a.m.

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Eltooth

Highly Voted 3 years, 6 months ago

Selected Answer: A

Correct answer - Traffic manager is global I.e. multi region - layer 7 traffic balancer option.

upvoted 21 times

Shadow983

3 years, 6 months ago

Answer is A, but Traffic Manager is not layer 7 load balancer. https://docs.microsoft.com/en-us/azure/architecture/guide/technology-choices/load-balancing-overview

upvoted 11 times

Eltooth

3 years, 6 months ago

The most important point to understand is that Traffic Manager works at the DNS level which is at the Application layer (Layer-7). https://docs.microsoft.com/en-us/azure/traffic-manager/traffic-manager-how-it-works

upvoted 4 times

JayBee65

2 years, 11 months ago

Nope DNS returns an IP address, which is layer 3, see https://www.cohesive.net/blog/4-things-everyone-should-know-about-network-layers/. Layer 7, the application layer refers to the http or https app protocol.

upvoted 5 times

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Eltooth

3 years, 6 months ago

Yes it is. https://docs.microsoft.com/en-us/azure/traffic-manager/traffic-manager-overview Azure Traffic Manager is a DNS-based traffic load balancer. This service allows you to distribute traffic to your public facing applications across the global Azure regions.

upvoted 2 times

FrancisFerreira

3 years, 3 months ago

typo: [...] why they DONT refer to it as a L7 appliance [...]

upvoted 3 times

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FrancisFerreira

3 years, 3 months ago

Layer 7 is application... If TM was a L7 appliance it would be able to do SSL offload, TLS termination, cookie-based session afinity, etc. That's why they refer to it as a L7 appliance, but only as DNS-based.

upvoted 5 times

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KrisDeb

2 years, 5 months ago

I agree, only Traffic Manager + Application Gateway or Front Door alone is layer 7 solution. https://portal.azure.com/#view/Microsoft_Azure_Network/LoadBalancingHubMenuBlade/~/overview

upvoted 2 times

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NotMeAnyWay

Highly Voted 2 years, 3 months ago

Selected Answer: A

A. Yes. This solution meets the goal. By deploying two Azure virtual machines in two separate Azure regions, you provide redundancy if one of the regions fails. Azure Traffic Manager can be used to distribute traffic between the virtual machines in different regions, ensuring high availability. Additionally, deploying Azure virtual machines allows you to have access to the full .NET Framework and grants administrators the ability to access the operating system to install custom application dependencies.

upvoted 9 times

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[Removed]

Most Recent 7 months, 2 weeks ago

Selected Answer: A

A is correct

upvoted 1 times

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aksrav

1 year, 10 months ago

is it not Azure front door?

upvoted 1 times

sieira

1 year, 9 months ago

Traffic manager distribuyes traffic at the DNS level and Front Door at the layer 7 (http/htpps).if the statament had considered a scenario of web application then we would probably use azure Front door

upvoted 1 times

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azkumar305

2 years, 2 months ago

Got this on 14-Apr-2023

upvoted 7 times

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zellck

2 years, 4 months ago

Selected Answer: A

A is the answer. https://learn.microsoft.com/en-us/azure/traffic-manager/traffic-manager-overview Azure Traffic Manager is a DNS-based traffic load balancer. This service allows you to distribute traffic to your public facing applications across the global Azure regions. Traffic Manager also provides your public endpoints with high availability and quick responsiveness.

upvoted 5 times

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totalz

2 years, 4 months ago

Should we consider the 1st and last requirements utterly pointless?

upvoted 1 times

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Putra19

2 years, 4 months ago

DNS-based load balancing operates at the network layer (layer 3), while layer 7 load balancing operates at the application layer

upvoted 1 times

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OPT_001122

2 years, 5 months ago

Selected Answer: A

You deploy two Azure virtual machines to two Azure regions, and you create an Azure Traffic Manager profile. Thanks to all who mentioned the exam dates because they came here to mention after their exam which is really incredible

upvoted 6 times

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iyerbh

2 years, 8 months ago

Traffic manager is layer 3 and Azur front door is layer 7. Both support globally (across region).

upvoted 4 times

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Gor

3 years, 1 month ago

Selected Answer: A

A is correct

upvoted 1 times

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dasEnder

3 years, 1 month ago

The traffic manager is DNS-based; and has health checks with HTTP(S) but is not level 7. I find the question rather ambiguous because it doesn't mention that you need to configure the health check and give access to the user.

upvoted 1 times

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Teringzooi

3 years, 2 months ago

Selected Answer: A

Correct answer - Traffic manager is global I.e. multi region - layer 7 traffic balancer option. https://docs.microsoft.com/en-us/azure/traffic-manager/traffic-manager-overview

upvoted 1 times

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