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Exam Professional Cloud Architect topic 1 question 195 discussion

Actual exam question from Google's Professional Cloud Architect
Question #: 195
Topic #: 1
[All Professional Cloud Architect Questions]

You are deploying an application to Google Cloud. The application is part of a system. The application in Google Cloud must communicate over a private network with applications in a non-Google Cloud environment. The expected average throughput is 200 kbps. The business requires:

• 99.99% system availability
• cost optimization

You need to design the connectivity between the locations to meet the business requirements. What should you provision?

  • A. An HA Cloud VPN gateway connected with two tunnels to an on-premises VPN gateway.
  • B. A Classic Cloud VPN gateway connected with two tunnels to an on-premises VPN gateway.
  • C. Two HA Cloud VPN gateways connected to two on-premises VPN gateways. Configure each HA Cloud VPN gateway to have two tunnels, each connected to different on-premises VPN gateways.
  • D. A Classic Cloud VPN gateway connected with one tunnel to an on-premises VPN gateway.
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Suggested Answer: A 🗳️
by thisisbob at Sept. 24, 2023, 1:12 p.m.

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e5019c6
Highly Voted 10 months ago
Yep, this question is a duplicate of #191.
upvoted 7 times
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TopTalk
Highly Voted 1 year, 1 month ago
Selected Answer: A
HA VPN supports two tunnels to achieve 99.99%. Classic VPN does not. Any more than 2 tunnels is excessive cost.
upvoted 5 times
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frank_tsai_tech
Most Recent 1 month ago
Selected Answer: A
Explanation: • High Availability (HA): HA Cloud VPN provides an SLA of up to 99.99% when properly configured with redundant tunnels. This meets the requirement for nearly 100% system availability. • Cost Optimization: For low throughput (200 kbps is minimal), one HA VPN gateway with two tunnels is both cost-effective and sufficient. Using two separate gateways (as in option C) would add unnecessary cost. • Simplicity: An HA VPN gateway with two tunnels is simpler to manage than deploying multiple VPN gateways. Thus, option A meets the business requirements while optimizing cost and availability.
upvoted 1 times
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ryaryarya
3 months, 2 weeks ago
Selected Answer: C
With A, there is a single point of failure. What if that single VPN gateway in the on-prem environment goes down? There goes your 99.99% system availability, which is the first business requirement.
upvoted 1 times
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sheucm89
1 year, 1 month ago
Selected Answer: A
Duplicated question in somewhere. Answer is A.
upvoted 4 times
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Murtuza
1 year, 1 month ago
Correct answer is A
upvoted 1 times
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thisisbob
1 year, 1 month ago
A, I think the question is duplicated
upvoted 3 times
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