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Answer: Implement an Uptime check for the load balancer's IP address with an alerting policy for notifications
The correct approach is to set up an Uptime check for the load balancer's IP address, as it minimizes administrative overhead. Other options either require excessive management (like configuring logging agents or deploying custom services) or are inefficient (such as monitoring each VM individually, which can lead to unnecessary alerts if VMs are replaced while the application remains available).
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Your company is hosting an application via Compute Engine behind a global load balancer. Your task is to monitor the application's availability and alert the on-call engineer if it's down for more than five minutes. Which option offers the least management overhead?
A
Deploy a custom service on each instance to notify you upon failure
B
Set up Cloud Logging alerts to notify you of application unavailability
C
Configure Uptime checks for each VM's IP address with an alerting policy for notifications
D
Implement an Uptime check for the load balancer's IP address with an alerting policy for notifications
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