[Solved] Given this YAML snippet for a Deployment with 3 replicas, what will happen if one pod crashes? — Ans: Kubernetes will create a new pod to maintain 3 replicas | Kubernetes

Kubernetes - Advanced Deployment Patterns

Given this YAML snippet for a Deployment with 3 replicas, what will happen if one pod crashes?

AThe crashed pod will remain down until manually restarted

BKubernetes will create a new pod to maintain 3 replicas

CAll pods will be terminated and recreated

DThe Deployment will scale down to 2 replicas automatically

Step-by-Step Solution

Solution:

Step 1: Understand Deployment replica behavior
Deployments maintain the desired number of replicas by restarting pods that fail.
Step 2: Apply this to the scenario
If one pod crashes, Kubernetes will start a new pod to keep 3 replicas running.
Final Answer:
Kubernetes will create a new pod to maintain 3 replicas -> Option B
Quick Check:
Deployment replica count maintained = New pod created [OK]

Quick Trick: Deployments auto-replace crashed pods to keep replica count [OK]

Common Mistakes:

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Given this YAML snippet for a Deployment with 3 replicas, what will happen if one pod crashes?