Linux System Administration Questions

Linux specific system administration and deep operating system topics. Areas include Linux kernel concepts, process lifecycle and signals, memory management and swap behavior in Linux, Linux file systems and permission models, boot processes and init systems such as systemd, package management and software installation, service management and system daemons, shell and scripting for automation and debugging, performance tuning and profiling, log management and diagnostic techniques, security and access control on Linux, and approaches to investigating and resolving systemic failures in Linux environments. At senior levels candidates should demonstrate both operational competence and an understanding of internal mechanisms and trade offs.