20 Questions
Which type of cache is used to speed up hard disk and flash disk writing and reading operations?
system I/O cache
What is the purpose of the kernel memory slabs?
To store information about the kernel
Which command displays the total amount of memory allocated for the I/O cache?
diagnose hardware sysinfo memory
What is the purpose of shared memory (SHM)?
To allow processes to share information
Which process applies configuration changes?
cmdbsrv
Which process is responsible for logs collection and automation stitches?
miglogd
Which process provides GUI access?
httpsd
Which process is responsible for SSL-VPN?
sslvpnd
Which process is responsible for FortiGuard updates?
updated
Which command can be used to display process ID number, state, memory use, and CPU use?
diagnose sys top {refresh time sec} {number of_lines}
Which component of FortiOS is responsible for making basic and important decisions, such as routing packets and offloading sessions?
Kernel
Where does the user space reside in the FortiOS architecture?
Above the kernel
In a 64-bit FortiOS architecture, does the kernel need to use memory paging to access the entire memory space?
No, the kernel can directly access the entire memory space
Which command can be used to retrieve information about the system memory in FortiGate?
diagnose hardware sysinfo memory
What is the purpose of kernel memory slabs in FortiOS?
Used by the kernel to allocate memory for specific purposes
Which of the following is NOT an example of a kernel memory slab in FortiOS?
user_session
What is the purpose of system I/O cache in FortiOS?
Caching system I/O operations
Which component of FortiOS is responsible for allocating memory for process-specific data?
Process memory
What is the purpose of shared memory in FortiOS?
Facilitating communication between processes
How many main purposes does FortiGate allocate memory for?
Five
Test your knowledge on FortiOS memory architecture and learn how FortiGate utilizes its memory to make crucial decisions such as packet routing and session offloading. Explore the role of the kernel, device drivers, and hardware in the FortiOS architecture.
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