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Node.js Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
medium
Node.js
Why does CPU profiling matter specifically because Node.js runs JS on a single main thread?
A
It doesn't relate to the single-thread model at all
B
Every synchronous function call competes for the same single shared thread — a CPU flame graph shows exactly how that one shared, finite resource is being spent
C
CPU profiling only matters for multi-threaded applications
D
The single-thread model makes CPU profiling unnecessary
Check Answer