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Docker Exam DCA Topic 1 Question 93 Discussion

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

Will this configuration achieve fault tolerance for managers in a swarm?

Solution: one manager node for two worker nodes

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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Alyce
2 months ago
Yes, I think having more manager nodes is the way to go for better fault tolerance.
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Nan
2 months ago
So, should we go with option B) No then?
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Sanjuana
2 months ago
I agree with Alyce, having redundancy in manager nodes can help with fault tolerance.
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Mari
2 months ago
I'm not sure about that. Wouldn't it be better to have at least three manager nodes to ensure true fault tolerance? I think the 'one manager, two worker' setup is a bit risky.
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Lisha
15 days ago
No, I don't think this configuration will achieve fault tolerance. We should consider adding more manager nodes.
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Ashlyn
16 days ago
Yes, I agree. It would be better to have at least three manager nodes for true fault tolerance.
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Heike
19 days ago
I think you're right. Having only one manager node for two worker nodes seems risky.
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Vicki
21 days ago
I agree, more manager nodes would provide better fault tolerance.
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Veronika
22 days ago
Yes, having one manager for two workers might not be enough.
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Fannie
1 months ago
I think having three manager nodes would be safer.
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Malinda
2 months ago
Yes, this configuration seems reasonable for achieving fault tolerance. Having one manager node for two worker nodes should provide some redundancy in case the manager node fails.
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Lorenza
2 months ago
No, this configuration may not be enough to ensure fault tolerance for managers in a swarm.
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Virgina
2 months ago
Yes, having one manager node for two worker nodes should help achieve fault tolerance.
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Alyce
3 months ago
I'm not sure, but having multiple manager nodes might be better for fault tolerance.
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Nan
3 months ago
Do you think one manager node for two worker nodes will achieve fault tolerance in a swarm?
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