[Solved] Given this pod spec snippet, what happens if the container tries to use 1 CPU but the limit is 500m? resources: requests: cpu: "250m" limits: cpu: "500m" | Kubernetes

Kubernetes - Resource Management

Given this pod spec snippet, what happens if the container tries to use 1 CPU but the limit is 500m?

resources:
  requests:
    cpu: "250m"
  limits:
    cpu: "500m"

AThe container can use up to 1 CPU without restrictions.

BThe container ignores limits and uses requested CPU only.

CThe container is limited to 500m CPU and cannot exceed it.

DThe container will be killed immediately for exceeding requests.

Step-by-Step Solution

Solution:

Step 1: Understand CPU requests vs limits
Requests are guaranteed CPU; limits are the max CPU allowed. Here, request is 250m, limit is 500m.
Step 2: Analyze container CPU usage behavior
If container tries to use 1 CPU, it exceeds the 500m limit, so Kubernetes restricts it to 500m CPU max.
Final Answer:
The container is limited to 500m CPU and cannot exceed it. -> Option C
Quick Check:
CPU limit caps usage at 500m [OK]

Quick Trick: Limits cap max usage; requests guarantee minimum [OK]

Common Mistakes:

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Given this pod spec snippet, what happens if the container tries to use 1 CPU but the limit is 500m?