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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 Hide Answer
Suggested Answer: A 🗳️
by MeasService at Oct. 19, 2019, 6:11 p.m.

Comments

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KouShikyou
Highly Voted 5 years ago
Agree. A looks correct for me.
upvoted 30 times
kimharsh
2 years, 5 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 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, 8 months ago
A is correct
upvoted 3 times
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tartar
4 years, 2 months ago
A is ok
upvoted 5 times
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thewalker
Most Recent 12 months ago
A. Creating MIGs across regions behind a GLB, gives HA across Zones and Regions.
upvoted 1 times
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NodummyIQ
1 year, 10 months 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
2 years, 11 months ago
Selected Answer: A
vote A
upvoted 3 times
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Ari_GCP
3 years, 1 month 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, 2 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
10 months, 1 week 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, 3 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, 3 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, 3 months ago
Answer is A
upvoted 2 times
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Pb55
3 years, 6 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, 6 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, 3 months ago
your statement is right. But A was MIGs.
upvoted 2 times
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tzKhalil
3 years, 6 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, 7 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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Ausias18
3 years, 7 months ago
Answer is A
upvoted 1 times
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lynx256
3 years, 7 months ago
IMO - A. We are gointg to use a few MIGs - one per region; each of them can scale independetly from others.
upvoted 1 times
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gu9singg
3 years, 7 months ago
A- because with Regional resources and global load balancer we can route traffic to nearest VM machine
upvoted 1 times
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bnlcnd
3 years, 9 months ago
https://cloud.google.com/load-balancing/docs/https/setting-up-https Seems D is correct
upvoted 2 times
bnlcnd
3 years, 9 months ago
"closer" group of virtual machines as part of a separate managed instance groups. The key word closer in the answer D means routing the client request to a closer regional MIG. Anything wrong? A seems not mentioning routing request to the MIG that is closer to the client.
upvoted 1 times
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