GCP Associate Cloud Engineer Practice Question 49: Uptime Check Notification
Google Cloud Associate Cloud Engineer · Test 5 · question 9 of 10
A public website is served by a load balancer. The on-call engineer must be paged through PagerDuty when the site stops answering HTTPS requests from the internet, even when the VMs behind it look healthy in the console.
What should you configure?
Show answer and explanation
Answer:
An uptime check probes a public endpoint from multiple global locations at a regular interval, so it tests what users experience, including DNS, the load balancer, and the certificate. An alerting policy on the check's failure, with a PagerDuty notification channel, pages the on-call engineer.
Option A monitors a resource metric, and healthy CPU does not mean the site is reachable. Option B detects a total absence of successful requests only if the logging pipeline is working, and it produces no signal for a site that receives no traffic at night. Option C measures request latency of traced requests, and it does not detect an outage or page anyone.
Reference: Uptime checks