DCA · Question #149
In the context of a swarm mode cluster, does this describe a node? Solution: a physical machine participating in the swarm
The correct answer is B. No. A Docker Swarm node is defined as any machine, either physical or virtual, that is running Docker Engine and participating in the swarm.
Question
In the context of a swarm mode cluster, does this describe a node? Solution: a physical machine participating in the swarm
Options
- AYes
- BNo
How the community answered
(35 responses)- A11% (4)
- B89% (31)
Why each option
A Docker Swarm node is defined as any machine, either physical or virtual, that is running Docker Engine and participating in the swarm.
This description is incomplete because virtual machines can also serve as Docker Swarm nodes.
A Docker Swarm node is not exclusively a physical machine; it can be either a physical machine or a virtual machine that has Docker Engine installed and is joined to the swarm. The definition encompasses any host participating in the swarm cluster.
Concept tested: Docker Swarm node definition
Source: https://docs.docker.com/engine/swarm/key-concepts/
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