DCA · Question #122
Will this Linux kernel facility limit a Docker container's access to host resources, such as CPU or memory? Solution: cgroups
The correct answer is A. Yes. Linux cgroups (control groups) are the kernel facility used by Docker to limit and manage a container's access to host resources like CPU and memory.
Question
Will this Linux kernel facility limit a Docker container's access to host resources, such as CPU or memory? Solution: cgroups
Options
- AYes
- BNo
How the community answered
(34 responses)- A91% (31)
- B9% (3)
Why each option
Linux cgroups (control groups) are the kernel facility used by Docker to limit and manage a container's access to host resources like CPU and memory.
Linux cgroups (control groups) are specifically designed to limit, account for, and isolate resource usage such as CPU, memory, disk I/O, and network for groups of processes, including those running in Docker containers.
cgroups are the fundamental mechanism that Docker leverages to impose resource constraints on containers, making this statement incorrect.
Concept tested: Linux cgroups for resource limiting
Source: https://docs.docker.com/config/containers/resource_constraints/
Topics
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