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Docker DCA Exam - Topic 3 Question 103 Discussion

Is this a type of Linux kernel namespace that provides container isolation?Solution. Host
B) No
A) Yes

Docker DCA Exam - 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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Catrice
7 months ago
No, it’s not the host namespace.
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Herminia
8 months ago
Wait, are we sure about that? Seems off to me.
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Carolynn
8 months ago
Totally agree, it’s all about isolation!
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Veda
8 months ago
I thought it was just for process isolation, not containers.
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Jovita
8 months ago
Yes, that's definitely a type of namespace!
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Margart
9 months ago
I practiced a similar question, and I think "No" makes sense since "Host" usually refers to the physical machine, not a namespace.
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Crissy
9 months ago
This feels familiar, but I can't recall if "Host" is a specific type of namespace. Could it be a trick question?
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Armanda
9 months ago
I remember studying namespaces, and I thought they were all about isolation. Maybe "Yes" is correct?
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Avery
9 months ago
I think the answer might be "No," but I'm not entirely sure if "Host" refers to a namespace.
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Julio
9 months ago
Hmm, I'm not totally confident on this. I'll make an educated guess and go with A, but I'll double-check my understanding later.
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Jaclyn
9 months ago
I'm a bit unsure about this one. I'll need to review my notes on Linux kernel namespaces to make sure I understand how they work with containers.
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Bette
9 months ago
I've got this! The Host namespace is used for container isolation, so the answer is A.
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Sherell
9 months ago
Okay, let's see. I know containers use namespaces for isolation, so I'll need to recall which specific namespace is responsible for that.
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Jaclyn
9 months ago
Hmm, this seems like a tricky one. I'll need to think through the Linux kernel namespaces and how they relate to container isolation.
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Miss
2 years 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
1 year ago
Yes
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Jolene
1 year ago
No
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Sage
1 year ago
Yes
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Eveline
2 years 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
2 years 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
2 years ago
B) No
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Viki
2 years ago
A) Yes
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Ma
2 years ago
I agree with Elke, the solution Host is indeed a type of Linux kernel namespace for container isolation.
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Lemuel
2 years ago
Hmm, I'm not sure. Containers are tricky, but I think the 'Host' answer might be right.
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Paris
2 years ago
I think it's No, because the solution provided is Host, not a type of Linux kernel namespace.
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Susana
2 years ago
Of course this is a type of Linux kernel namespace, that's the whole point of containers!
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Tish
2 years ago
No problem, happy to help!
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Jeanice
2 years ago
I knew it! Thanks for confirming.
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Antione
2 years ago
Exactly, the host namespace provides container isolation.
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Nieves
2 years ago
Yes
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Elke
2 years ago
Yes, it is a type of Linux kernel namespace that provides container isolation.
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