DCA · Question #150
In the context of a swarm mode cluster, does this describe a node? Solution: a virtual machine participating in the swarm
The correct answer is B. No. A Docker Swarm node encompasses both virtual and physical machines, so describing it solely as a virtual machine is not a complete definition.
Question
In the context of a swarm mode cluster, does this describe a node? Solution: a virtual machine participating in the swarm
Options
- AYes
- BNo
How the community answered
(39 responses)- A5% (2)
- B95% (37)
Why each option
A Docker Swarm node encompasses both virtual and physical machines, so describing it solely as a virtual machine is not a complete definition.
This description is incomplete because physical machines are also commonly used as Docker Swarm nodes.
While a virtual machine can certainly be a Docker Swarm node, this statement alone does not fully define a node, as a physical machine also qualifies as a node. A Docker Swarm node is broadly any machine (physical or virtual) running Docker Engine and participating in the swarm.
Concept tested: Docker Swarm node definition scope
Source: https://docs.docker.com/engine/swarm/key-concepts/
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