SAC Operating Systems and System Configuration 3

Question 1

Which Linux kernel parameter file controls the maximum number of open file descriptors system-wide?

Accepted Answer

/proc/sys/fs/file-max

Answer

/proc/sys/fs/file-max contains the system-wide maximum number of file descriptors the kernel will allocate.

Question 2

What is the function of the Windows pagefile.sys?

Accepted Answer

Acts as virtual memory by extending RAM to disk

Answer

pagefile.sys is the Windows swap file that extends physical RAM by using disk space as virtual memory.

Question 3

Which command in Linux displays real-time CPU, memory, and process information interactively?

Accepted Answer

top

Answer

`top` provides a real-time, interactive view of running processes along with CPU and memory usage statistics.

Question 4

In Windows Server, what does the BCDEdit command-line tool manage?

Accepted Answer

Boot Configuration Data store

Answer

BCDEdit manages the Boot Configuration Data (BCD) store, allowing administrators to modify boot entries and parameters.

Question 5

Which Linux signal number is used to gracefully terminate a process, allowing it to clean up?

Accepted Answer

SIGTERM (15)

Answer

SIGTERM (signal 15) requests a graceful shutdown, giving the process time to clean up resources before exiting.

(SAC) System Administration Certification Practice Test