Topic 2 Question 36
You are hosting an application from Compute Engine virtual machines (VMs) in us""central1""a. You want to adjust your design to support the failure of a single Compute Engine zone, eliminate downtime, and minimize cost. What should you do?
"" Create Compute Engine resources in us""central1""b. "" Balance the load across both us""central1""a and us""central1""b.
"" Create a Managed Instance Group and specify us""central1""a as the zone. "" Configure the Health Check with a short Health Interval.
"" Create an HTTP(S) Load Balancer. "" Create one or more global forwarding rules to direct traffic to your VMs.
"" Perform regular backups of your application. "" Create a Cloud Monitoring Alert and be notified if your application becomes unavailable. "" Restore from backups when notified.
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Correct Answer is (A):
Choosing a region and zone You choose which region or zone hosts your resources, which controls where your data is stored and used. Choosing a region and zone is important for several reasons:
Handling failures Distribute your resources across multiple zones and regions to tolerate outages. Google designs zones to be independent from each other: a zone usually has power, cooling, networking, and control planes that are isolated from other zones, and most single failure events will affect only a single zone. Thus, if a zone becomes unavailable, you can transfer traffic to another zone in the same region to keep your services running. Similarly, if a region experiences any disturbances, you should have backup services running in a different region. For more information about distributing your resources and designing a robust system, see Designing Robust Systems. Decreased network latency To decrease network latency, you might want to choose a region or zone that is close to your point of service.
https://cloud.google.com/compute/docs/regions-zones#choosing_a_region_and_zone
👍 12ESP_SAP2020/08/21but b dont support the failure of a single compute engine zone A sound better
👍 3francisco_guerra2020/08/13A is correct answer for me
👍 3SSPC2020/08/20
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