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Exam Professional Cloud Network Engineer topic 1 question 88 discussion

Actual exam question from Google's Professional Cloud Network Engineer
Question #: 88
Topic #: 1
[All Professional Cloud Network Engineer Questions]

You need to create the network infrastructure to deploy a highly available web application in the us-east1 and us-west1 regions. The application runs on Compute Engine instances, and it does not require the use of a database. You want to follow Google-recommended practices. What should you do?

  • A. Create one VPC with one subnet in each region.
    Create a regional network load balancer in each region with a static IP address.
    Enable Cloud CDN on the load balancers.
    Create an A record in Cloud DNS with both IP addresses for the load balancers.
  • B. Create one VPC with one subnet in each region.
    Create a global load balancer with a static IP address.
    Enable Cloud CDN and Google Cloud Armor on the load balancer.
    Create an A record using the IP address of the load balancer in Cloud DNS.
  • C. Create one VPC in each region, and peer both VPCs.
    Create a global load balancer.
    Enable Cloud CDN on the load balancer.
    Create a CNAME for the load balancer in Cloud DNS.
  • D. Create one VPC with one subnet in each region.
    Create an HTTP(S) load balancer with a static IP address.
    Choose the standard tier for the network.
    Enable Cloud CDN on the load balancer.
    Create a CNAME record using the load balancer’s IP address in Cloud DNS.
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by playpacman at Dec. 1, 2022, 12:58 p.m.

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RKS_2021
2 weeks, 1 day ago
Selected Answer: B
B is correct. D has two wrong statements, CDN on standard tier and CNAM to IP.
upvoted 1 times
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Nelson90
7 months, 1 week ago
There's NO SUCH THING as a CNAME pointing to a IP addresses, CNAMEs must ALWAYS point to a FQDN. D is wrong.
upvoted 1 times
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Thornadoo
1 year, 5 months ago
Selected Answer: B
D would have been correct if it did not have the Standard network tiering. Remember, standard network tier: Network services such as Cloud Load Balancing are regional (one VIP per region) - https://cloud.google.com/network-tiers C doesn't make sense - You don't need peering with GSLB. This leaves 1 and 2. You need GSLB for CDN. Hence that eliminates A.
upvoted 3 times
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Komal697
1 year, 10 months ago
Selected Answer: D
option D is the correct answer as it suggests creating one VPC with one subnet in each region and using a global HTTP(S) load balancer with Cloud CDN enabled. This follows the Google-recommended practice of having a VPC in each region for higher availability and lower latency, while also providing global load balancing and CDN acceleration for the web application.
upvoted 1 times
desertlotus1211
10 months, 3 weeks ago
Wrong - cannot use CDN with Standard tier
upvoted 1 times
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Komal697
1 year, 10 months ago
Option A is incorrect because it suggests using a regional network load balancer in each region, which would not provide global load balancing across both regions. Also, Cloud CDN cannot be enabled on regional load balancers, only on global load balancers. Option B is incorrect because it suggests using a global load balancer, which would not require a VPC in each region. However, this does not follow the recommended practice of having a VPC in each region for higher availability and lower latency. Also, Cloud CDN and Google Cloud Armor can only be enabled on global HTTP(S) load balancers, not on network load balancers.
upvoted 1 times
Komal697
1 year, 10 months ago
Option C is incorrect because it suggests peering two VPCs in each region, which is not necessary for deploying a highly available web application in multiple regions. Also, Cloud CDN can only be enabled on global HTTP(S) load balancers, not on network load balancers. Lastly, creating a CNAME record for the load balancer is not recommended as it adds extra DNS resolution steps and can negatively impact performance.
upvoted 2 times
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Loved
1 year, 4 months ago
Where did you read that Google suggest to have one VPC for each region for HA? Anyways, also in D you have just 1 VPC with 2 regional subnet
upvoted 1 times
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GeorgS
1 year, 9 months ago
Same Opinion for me: https://cloud.google.com/load-balancing/docs/load-balancing-overview?hl=en "Cloud CDN is supported with the global external HTTP(S) load balancer and the global external HTTP(S) load balancer (classic)." So we need a HTTP/S Loadbalancer
upvoted 1 times
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pk349
2 years ago
• B. Create one VPC with one subnet in each region. Create a global load balancer ***** with a static IP address. Enable Cloud CDN and Google Cloud Armor on the load balancer. Create an A record using the IP address of the load balancer in Cloud DNS.
upvoted 1 times
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Rightsaidfred
2 years, 1 month ago
Selected Answer: B
B as you need Global Load Balancer across multiple Regions.
upvoted 3 times
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AzureDP900
2 years, 1 month ago
B is 100% correct based on given scenario.
upvoted 2 times
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pfilourenco
2 years, 2 months ago
Selected Answer: B
100% B.
upvoted 3 times
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ccieman2016
2 years, 2 months ago
Selected Answer: B
100% B. https://cloud.google.com/solutions/best-practices-compute-engine-region-selection#distributed_frontend_and_backend_in_multiple_regions
upvoted 3 times
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playpacman
2 years, 2 months ago
Its B not C
upvoted 2 times
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