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Docker DCA Exam - Topic 4 Question 88 Discussion

Actual exam question for Docker's DCA exam
Question #: 88
Topic #: 4
[All DCA Questions]

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

Solution. Process ID

Show Suggested Answer Hide Answer
Suggested Answer: B

The command 'docker ps http' is not the correct command to view the list of historical tasks for a service in Docker1. The 'docker ps' command is used to list containers1. If you want to view the list of historical tasks for a service, you should use the 'docker service ps' command2. This command lists the tasks that are running as part of the specified services and also shows the task history2. Therefore, to view the list of historical tasks for the 'http' service, you should use the command 'docker service ps http'2.


by Davida at May 17, 2024, 08:08 PM

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Carmelina
3 months ago
Definitely a type of namespace, good call!
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Dolores
4 months ago
No way, I thought it was something else!
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Junita
4 months ago
Wait, are we sure about that?
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Annelle
4 months ago
Totally agree, PID namespaces are key for isolation.
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Xuan
4 months ago
Yes, that's correct!
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Jamey
4 months ago
I'm pretty confident that process ID namespaces help with isolation in containers, but I wonder if there are other namespaces that do the same thing.
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Lacresha
5 months ago
This question seems similar to one we practiced on network namespaces. I think process ID is correct, but I might be mixing it up with another type.
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Edwin
5 months ago
I remember studying about different namespaces, and I feel like process ID is one of them, but I can't recall if it provides full isolation.
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Annmarie
5 months ago
I think process ID namespaces are definitely related to container isolation, but I'm not entirely sure if they are the only type.
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Keshia
5 months ago
Ugh, I'm drawing a blank on the different Linux namespaces and their use cases. Let me think this through step-by-step. Containers need isolation, and namespaces provide that... Okay, I'll go with A and hope for the best.
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Sommer
5 months ago
Ah, I've seen questions like this before. Process ID namespaces are definitely the way to go for container isolation. I'm confident that A is the correct answer here.
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Virgina
5 months ago
Hmm, I'm not totally sure about this one. I know namespaces are used for isolation, but I can't quite recall which specific namespace is used for containers. I'll have to think this through carefully.
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Lorean
5 months ago
This looks like a pretty straightforward question. The key is to remember that process ID namespaces are used for container isolation, so I'll go with option A.
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Truman
5 months ago
Measure and Dimension seem like the logical choices here. The chart is showing sales totals, so we need a measure to quantify that. And breaking it down by region requires a dimension. I feel good about this selection.
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Elin
5 months ago
This seems like a tricky one. I'll need to think carefully about the different data source options and which one would provide the transparent failover that the question is asking for.
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Celia
10 months ago
If Process ID could contain a container, it would be a Pandora's box. I'm going with B) for sure.
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Dorothea
10 months ago
Process ID? More like Process ID-iocy! This question is making me question my life choices.
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Oliva
10 months ago
Ha! Process ID? That's like trying to contain a hurricane with a paper bag. Definitely B) for this one.
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Rodolfo
9 months ago
B) No
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Cory
9 months ago
B) No
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Silva
9 months ago
A) Yes
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Mabelle
10 months ago
Hmm, I'm pretty sure containers use a different namespace to isolate their processes. Process ID doesn't sound right to me.
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Kristin
10 months ago
No way! Process ID namespace is for isolating processes, not containers. I think B) is the correct answer here.
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Lorean
9 months ago
Definitely, B) No is the correct answer. Process ID namespace is for isolating processes.
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Aretha
9 months ago
I agree, B) No is the correct answer. Process ID namespace is not for container isolation.
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Annita
9 months ago
Yes, I think you are right. Process ID namespace is for isolating processes, not containers.
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Maynard
10 months ago
B) No
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Delsie
10 months ago
No, you're right. Process ID namespace is for isolating processes, not containers.
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Levi
10 months ago
A) Yes
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Julene
11 months ago
A) Yes, because the Linux kernel namespace that provides container isolation is the Process ID namespace.
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Gail
11 months ago
B) No
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Reena
11 months ago
A) Yes
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