156-551 · Question #128
Which commands are used to view CPU core assignment and load across VSs? (Choose two)
The correct answer is A. fw ctl affinity -l -r C. fw ctl multik stat. fw ctl affinity -l -r shows how CPU cores are mapped to VSs, and fw ctl multik stat displays the distribution of Firewall Worker cores, helping optimize VS performance. These tools are essential for tuning performance in high-traffic environments.
Question
Which commands are used to view CPU core assignment and load across VSs? (Choose two)
Options
- Afw ctl affinity -l -r
- Btop -vs
- Cfw ctl multik stat
- Dvsx_util cpuload
How the community answered
(45 responses)- A78% (35)
- B9% (4)
- D13% (6)
Explanation
fw ctl affinity -l -r shows how CPU cores are mapped to VSs, and fw ctl multik stat displays the distribution of Firewall Worker cores, helping optimize VS performance. These tools are essential for tuning performance in high-traffic environments.
Topics
Community Discussion
6
Nina C.Jun 3, 2026The correct answers are A and C. The command "fw ctl affinity -l -r" shows you how CPU cores are assigned to your Virtual Systems and interfaces, so you can actually see which VS is pinned to which core. "fw ctl multik stat" gives you the CoreXL multi-kernel statistics, meaning it shows the real-time traffic and load distribution across those cores. Those two together give you the full picture, assignment plus actual utilization. The other two options sound plausible but neither "top -vs" nor "vsx_util" are the right tools for this specific task, and mixing them up on the exam is an easy trap to fall into.
Fatima Z.May 22, 2026Thought D, but "Affinity" plus "Multik" spell AM, Always Memorize cores!
Carlos M.Jun 7, 2026A and C are right, affinity shows core-to-VS mapping and multik stat shows per-core load.
Fatima Z.Jun 9, 2026Yes, and burn it in with this hook: A is for Address book, affinity tells you WHO goes WHERE, and M is for Meter, multik stat tells you HOW HARD each core is sweating, two seconds of that mental image and you will never swap those two answers again.
Toby R.May 26, 2026D and C, vsx_util cpuload is literally what showed me VS load during my lab prep.
Fatima Z.May 29, 2026Hey Toby, vsx_util cpuload is real but it lands in the A slot, not D, so the correct pair is A and C. Think "AC power" to lock in that combo, because just like AC keeps your lab running, A and C keep your VS load answer correct.