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Docker Exam DCA Topic 3 Question 103 Discussion

Actual exam question for Docker's DCA exam
Question #: 103
Topic #: 3
[All DCA Questions]

Is this a type of Linux kernel namespace that provides container isolation?

Solution. Host

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Suggested Answer: B

= Host is not a type of Linux kernel namespace that provides container isolation.Linux namespaces are a feature of the Linux kernel that partitions kernel resources such that one set of processes sees one set of resources while another set of processes sees a different set of resources1.There are eight kinds of namespaces available: Mount, Process, User, Network, UTS, IPC, Cgroup, and Time1.Host is a parameter that can be used to run a container in the host's network namespace, which means the container shares the same network interfaces and configuration as the host2.Reference:

Linux namespaces - Wikipedia

Network settings | Docker Documentation


by Jannette at Nov 13, 2024, 10:37 PM

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Ma
12 days ago
I agree with Elke, the solution Host is indeed a type of Linux kernel namespace for container isolation.
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Lemuel
20 days ago
Hmm, I'm not sure. Containers are tricky, but I think the 'Host' answer might be right.
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Paris
21 days ago
I think it's No, because the solution provided is Host, not a type of Linux kernel namespace.
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Susana
21 days ago
Of course this is a type of Linux kernel namespace, that's the whole point of containers!
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Elke
25 days ago
Yes, it is a type of Linux kernel namespace that provides container isolation.
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