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Exam Professional Cloud Architect topic 11 question 11 discussion

Actual exam question from Google's Professional Cloud Architect

Question #: 11
Topic #: 11

[All Professional Cloud Architect Questions]

The current Dress4Win system architecture has high latency to some customers because it is located in one data center.
As of a future evaluation and optimizing for performance in the cloud, Dresss4Win wants to distribute its system architecture to multiple locations when Google cloud platform.
Which approach should they use?

A. Use regional managed instance groups and a global load balancer to increase performance because the regional managed instance group can grow instances in each region separately based on traffic.
B. Use a global load balancer with a set of virtual machines that forward the requests to a closer group of virtual machines managed by your operations team.
C. Use regional managed instance groups and a global load balancer to increase reliability by providing automatic failover between zones in different regions.
D. Use a global load balancer with a set of virtual machines that forward the requests to a closer group of virtual machines as part of a separate managed instance groups.

Show Suggested Answer

Suggested Answer: A 🗳️

by MeasService at Oct. 19, 2019, 6:11 p.m.

Comments

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KouShikyou

Highly Voted 5 years, 3 months ago

Agree. A looks correct for me.

upvoted 31 times

kimharsh

2 years, 8 months ago

I thought A is talking about MIG , but if your read the question carefully you will see MIG's , which changed my answer from D to A

upvoted 1 times

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MeasService

Highly Voted 5 years, 3 months ago

I am not convinced with D. A sounds correct answer. Creating regional MIGs and connecting it to GLB. Anyone ?

upvoted 19 times

nitinz

3 years, 11 months ago

A is correct

upvoted 3 times

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tartar

4 years, 5 months ago

A is ok

upvoted 5 times

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ptsironis

Most Recent 2 months, 2 weeks ago

Selected Answer: A

A is correct

upvoted 1 times

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thewalker

1 year, 2 months ago

A. Creating MIGs across regions behind a GLB, gives HA across Zones and Regions.

upvoted 1 times

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NodummyIQ

2 years, 1 month ago

Answer D is correct. Answer A is not correct because it does not mention the aspect of distributing the system architecture to multiple locations. A regional managed instance group can increase performance by allowing the group to grow instances in each region separately based on traffic, but it does not address the issue of distributing the system architecture to multiple locations.

upvoted 2 times

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joe2211

3 years, 2 months ago

Selected Answer: A

vote A

upvoted 3 times

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Ari_GCP

3 years, 4 months ago

Agree with A. It says optimize for performance, and multiple regional MIG's can definitely help you do that.

upvoted 1 times

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PeppaPig

3 years, 5 months ago

A is correct for sure D is wrong. GLB is already capable of forwarding traffic to MIG in the closer region so why would you implement that again

upvoted 1 times

parthkulkarni998

1 year, 1 month ago

Exactly. D states about implementing GLB in a set of VMs rather than using a managed service of GLBs

upvoted 1 times

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kopper2019

3 years, 6 months ago

hey guys new Qs posted as of July 12th, 2021, All 21 new Qs in Question #152

upvoted 1 times

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victory108

3 years, 6 months ago

A. Use regional managed instance groups and a global load balancer to increase performance because the regional managed instance group can grow instances in each region separately based on traffic.

upvoted 2 times

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MamthaSJ

3 years, 6 months ago

Answer is A

upvoted 2 times

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Pb55

3 years, 9 months ago

It’s A. Each region can have an instance group linked to a global load balancer. Instance groups do not need to be multi regional for this to work.

upvoted 1 times

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tzKhalil

3 years, 9 months ago

A is not good, because a regional MIG, which deploys instances to multiple zones across the same region. This will not deploy instances in multi regions. D is good

upvoted 2 times

taoj

3 years, 6 months ago

your statement is right. But A was MIGs.

upvoted 2 times

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tzKhalil

3 years, 9 months ago

Doc: https://cloud.google.com/compute/docs/instance-groups#types_of_managed_instance_groups

upvoted 1 times

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jaguarrr

3 years, 10 months ago

D is the correct answer. With A it says "because the regional managed instance group can grow instances in each region separately based on traffic." A regional instance group cannot grow instances in Multiple Regions, only in one. With D, you have multiple separate Regional Instance Groups, which is what is missing in answer A.

upvoted 3 times

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