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Docker Exam DCA Topic 1 Question 93 Discussion

Actual exam question for Docker's DCA exam
Question #: 93
Topic #: 1
[All DCA Questions]

Will this action upgrade Docker Engine CE to Docker Engine EE?

Solution. Disable the Docker service via 'chkconfig' or 'systemctl'.

Show Suggested Answer Hide Answer
Suggested Answer: B

Docker Swarm requires more than one manager node to achieve fault tolerance12. A single manager node is not fault tolerant because if it goes down, the entire cluster goes down3. For a swarm to be fault-tolerant, it needs to have an odd number of manager nodes2. For example, a three-manager swarm tolerates a maximum loss of one manager2. Therefore, a configuration with one manager node for two worker nodes will not achieve fault tolerance for managers in a swarm12.


by Brittni at Jul 12, 2024, 11:03 PM

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Lorrine
3 days ago
B) No, this will only disable the Docker service, not upgrade it. I'm not sure if that's the solution they're looking for, but it's definitely not an upgrade.
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Jerrod
7 days ago
No, this action will just make my Docker disappear entirely. And I thought I was the one taking the certification exam, not Docker!
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Kindra
8 days ago
I agree with Billye. Disabling the service just stops it, it doesn't upgrade it.
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Billye
10 days ago
No, I don't think so. Disabling the service won't upgrade it.
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Ciara
12 days ago
Disabling Docker CE to upgrade to EE? That's like trying to upgrade from a bicycle to a Ferrari by taking the wheels off.
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Annice
14 days ago
Do you think disabling the Docker service will upgrade it to EE?
upvoted 0 times
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