Question-12: Linux Kernel Modules. Kernel modules are snippets of code that, depending on the circumstances, may be loaded into the kernel or removed from it. They increase the capability of the system's kernel without requiring a restart of the operating system. It is possible to set a module to be either built-in or loadable. Processing in Batches. Batch processing is a method that is used because it is an effective technique of processing high or huge amounts of data. It is processed, particularly in situations when a number of transactions gathered over a period of time are processed together. Data is gathered, input, and processed at this step of the process. In order to speed up the nightly batch process, your development team has deployed a new Linux kernel module on the batch servers that are hosted in Google Compute Engine (GCE) virtual machines (VMs). The nightly batch run was unsuccessful for fifty percent of the batch servers two days after the installation. You need to gather specifics about the failure so that you may relay them to the development team. What are the three steps that you need to take? (You may choose any three.)
A. Make use of Stackdriver Logging to look for the entries in the module's log.
B. You may access the debug GCE Activity log by using either the API or the Cloud Console.
C. Connecting to the serial terminal and inspecting the logs may be done using gcloud or the Cloud Console.
D. Check the activity log to see if the server that failed had any live migration events that it was involved in.
E. Adjust the time on the Google Stackdriver timeline so that it coincides with the moment the problem occurred, and monitor the metrics for the batch server.
F. Create an image of a debug VM and then run it on a server on your own network. Messages sent to the kernel log will be shown on the native screen.

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