Which of the following is true about the docker swarm init command?

easy📝 Conceptual Q2 of 15

Docker - Swarm

Which of the following is true about the docker swarm init command?

AIt can only be run on a Linux host

BIt disables swarm mode

CIt automatically adds worker nodes

DIt creates a new swarm cluster if none exists

Step-by-Step Solution

Solution:

Step 1: Check what docker swarm init does
This command creates a new swarm cluster if the Docker engine is not already part of one.
Step 2: Verify other options
It does not restrict OS, does not add workers automatically, and does not disable swarm mode.
Final Answer:
It creates a new swarm cluster if none exists -> Option D
Quick Check:
Swarm init creates cluster = true [OK]

Quick Trick: Init creates cluster only if none exists [OK]

Common Mistakes:

Master "Swarm" in Docker

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