An administrator notices a website hosted on an httpd web server is not loading. Upon further inspection, the administrator learns there are no processes running. When starting the service, the site operates correctly for a few minutes before the process disappears again. Which of the following should the administrator consider as the MOST likely possibility before troubleshooting the issue?
A) The CPU has too much load, causing it to overheat, and the kernel is automatically killing the processes to keep the CPU cool.
B) An external database to which the web server connects is offline, causing httpd to die due to execution errors. An external database to which the web server connects is offline, causing to die due to execution errors.
C) Shared libraries, which were recently updated, are causing compatibility issues and httpd to die due to version mismatch. Shared libraries, which were recently updated, are causing compatibility issues and to die due to version mismatch.
D) The out-of-memory killer was activated due to low available memory, causing the kernel to kill the processes automatically.
E) The server is intermittently losing access to the network, causing socket errors that trigger httpd to die. The server is intermittently losing access to the network, causing socket errors that trigger to die.

Question

Quizplus · Accepted Answer

The out-of-memory killer is a mechanism in the Linux kernel that automatically terminates processes when the system is running low on memory. This is a common cause for processes disappearing unexpectedly.

An Administrator Notices a Website Hosted on an Httpd Web