When would an administrator compile or reconfigure the kernel?

What will be an ideal response?

Typically, you can set up and manage a Linux network without ever needing to compile or reconfigure the kernel. However, there are some reasons you might want to compile the kernel, such as needing special drivers for hardware that isn't supported by the kernel or wanting to file a report because you discovered a bug in the kernel. You might also need to recompile the Linux kernel if you're a kernel developer or just want a better understanding of how it works.