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Docker (beginner)
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Q 1/13
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Multiple Choice
When you set `--memory 256m` on a `docker run` command, which Linux kernel mechanism actually enforces the limit?
A process limit (ulimit) set by the Docker daemon
A cgroup (Control Group) v1 or v2 memory controller
An iptables rule that blocks memory allocation syscalls
A kernel module loaded by containerd on container start
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