Exam Professional Cloud Architect topic 1 question 34 discussion

ACE A. Use Stackdriver Logging to search for the module log entries = Check logs C. Use gcloud or Cloud Console to connect to the serial console and observe the logs = Check grub messages, remember new kernel module was installed. E. Adjust the Google Stackdriver timeline to match the failure time, and observe the batch server metrics = Zoom into the time window when problem happened.

Go for A,B,E. C is when the VM is running , but in this case the sentence says “recollect”. It means that “error ever” already happened.

A. Use Stackdriver Logging to search for the module log entries: This is crucial. Stackdriver Logging aggregates logs from various sources, including your VMs. You can search for specific entries related to the new kernel module to identify errors, warnings, or unusual behavior that might explain the failures. C. Use gcloud or Cloud Console to connect to the serial console and observe the logs: The serial console provides access to the VM's output even if the system is unresponsive. This can be invaluable for capturing kernel panic messages, boot errors, or other critical information that might not be available through standard logging channels. E. Adjust the Google Stackdriver timeline to match the failure time, and observe the batch server metrics: Stackdriver Monitoring provides detailed performance metrics for your VMs. By aligning the timeline with the failures, you can analyze CPU usage, memory consumption, disk I/O, and network activity.

considering that logs from the serial console might not be useful after two days: A. Use Stackdriver Logging to search for the module log entries: This will help you identify any errors or issues logged by the new kernel module. B. Read the debug GCE Activity log using the API or Cloud Console: This can provide information on significant events like reboots or live migrations that might have affected the batch process. E. Adjust the Google Stackdriver timeline to match the failure time, and observe the batch server metrics: This helps correlate the failure with any anomalies in the server metrics, providing insights into what might have gone wrong.

Answer is ACE

Vote ACE

I'm not sure but I vote for ABE

ACE makes sense. A and E dont have any doubts. Questions is that if it is B, C or F. Whats' use of serial console if team does not use it for logging especially kernal related updates. that makes sense to choose C.

Most automated way, with C, collecting from VMs involves a lot of manual efforts

ABE is correct

I'm really not sure here. A and E are just OK, and for me the final point is between B o C. many ppl is saying C, but, the question says that the VM's already failed and you're investigating what happened in the past. Anyway, there are 2 ways to interpret this, from my point of view: 1) The failure happened and it's going to happen again. In this case ACE would be maybe the best option BUt 2) The failure happened and you want to investigate this failure, which happened in the past. Therefore ABE would be the right one, as you are "splunking" in the logs of the past, not having a review of the logs as they happen. from my personal interpretation I'd go with ABE

ACE To collect details on the failure of the batch servers in GCE VMs, you can take the following actions: A: Stackdriver Logging can help you identify any issues related to the new Linux kernel module by searching for log entries related to the module. C: Connecting to the serial console allows you to view the logs in real-time as the batch servers are running. This can help you identify any issues related to the new kernel module. E: By adjusting the timeline in Stackdriver to match the failure time, you can view the batch server metrics during the time when the failures occurred. This can help you identify any issues related to the new kernel module. Other options, such as reading the debug GCE Activity log using the API or Cloud Console, identifying whether a live migration event of the failed server occurred, or exporting a debug VM into an image and running the image on a local server, may not provide the necessary information to understand

ACE by eliminating the incorrect answers

ADE seems correct

I vote for.

This question is very poorly asked. There is no place saying if the live migration is enabled. If a VM is not set to live migrate, the VM is terminated during host system events. There is no place saying if you run into problems accessing your instance through SSH or need to troubleshoot an instance that is not fully booted, so you can enable interactive access to the serial console. C: https://cloud.google.com/compute/docs/troubleshooting/troubleshooting-using-serial-console D: https://cloud.google.com/compute/docs/instances/live-migration

ACE are the correct choices