[Solved] What will be the output of this command if the pod db-pod has a container named mysql running and you execute: kubectl exec db-pod -c mysql -- ls /var/lib/mysql? | Kubernetes

Kubernetes - kubectl Essential Commands

What will be the output of this command if the pod db-pod has a container named mysql running and you execute:
kubectl exec db-pod -c mysql -- ls /var/lib/mysql?

ALists files and directories inside /var/lib/mysql in the mysql container

BShows an error: container mysql not found

CLists files in the host machine's /var/lib/mysql directory

DStarts an interactive shell inside the mysql container

Step-by-Step Solution

Solution:

Step 1: Understand the command
The command runs ls /var/lib/mysql inside the mysql container of the db-pod pod. It lists files in that directory inside the container.
Step 2: Eliminate wrong options
Shows an error: container mysql not found is wrong because the container exists. Lists files in the host machine's /var/lib/mysql directory is wrong because kubectl exec runs inside container, not host. Starts an interactive shell inside the mysql container is wrong because no shell is started; only ls runs.
Final Answer:
Lists files and directories inside /var/lib/mysql in the mysql container -> Option A
Quick Check:
kubectl exec runs command inside container = Lists files and directories inside /var/lib/mysql in the mysql container [OK]

Quick Trick: kubectl exec runs command inside container, not host [OK]

Common Mistakes:

Thinking command runs on host machine
Confusing exec with shell start
Assuming container does not exist

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What will be the output of this command if the pod db-pod has a container named mysql running and you execute:

Step 1: Understand the command

Step 2: Eliminate wrong options

Final Answer:

Quick Check:

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