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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

Show Suggested Answer Hide Answer
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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Miss
3 months ago
Ah, the age-old debate: 'Host' or 'No'. I'll just consult my Magic 8-Ball on this one.
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Tanesha
2 months ago
Yes
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Jolene
2 months ago
No
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Sage
3 months ago
Yes
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Eveline
4 months ago
Containers? Namespaces? What is this, a tech support hotline? I'm just going to pick 'B' and move on.
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Lashon
4 months ago
This is a trick question, isn't it? 'Host' can't be the answer, that's way too obvious.
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Idella
3 months ago
B) No
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Viki
3 months ago
A) Yes
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Ma
4 months ago
I agree with Elke, the solution Host is indeed a type of Linux kernel namespace for container isolation.
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Lemuel
5 months ago
Hmm, I'm not sure. Containers are tricky, but I think the 'Host' answer might be right.
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Paris
5 months ago
I think it's No, because the solution provided is Host, not a type of Linux kernel namespace.
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Susana
5 months ago
Of course this is a type of Linux kernel namespace, that's the whole point of containers!
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Tish
3 months ago
No problem, happy to help!
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Jeanice
3 months ago
I knew it! Thanks for confirming.
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Antione
4 months ago
Exactly, the host namespace provides container isolation.
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Nieves
4 months ago
Yes
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Elke
5 months ago
Yes, it is a type of Linux kernel namespace that provides container isolation.
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