A security engineer is troubleshooting a Kubernetes sensor deployment for runtime protection. The sensor fails to start, and the following error is observed in the logs: 1. Failed to pull image…

Question

Options

• AThe Kubernetes cluster lacks sufficient memory; increase node resources to resolve the issue.
• BThe Kubernetes cluster is running an unsupported version, requiring a downgrade to a known
• CThe sensor image is missing from the container registry; ensure the correct image exists and is
• DThe sensor container does not have the required privileges; restart the sensor with the --privileged

• A
  13% (2)
• B
  6% (1)
• C
  56% (9)
• D
  25% (4)

Explanation

Option A: Insufficient memory can cause container crashes (OOMKilled), but it does not lead to an ImagePullBackOff error. Option B: While an unsupported Kubernetes version might cause compatibility issues, it is not a direct cause of an image pull failure. Downgrading is not a general solution to this issue. Option C: The "ImagePullBackOff" error occurs when Kubernetes repeatedly fails to pull an image from a container registry. Common causes include: ?The image does not exist or has been deleted. ?The image tag is incorrect or mismatched. ?Registry authentication is required, and the credentials are missing or incorrect. ?Network issues prevent the image from being pulled. ?Resolving this requires verifying the image existence, ensuring the node has the correct registry credentials, and confirming that the registry is accessible. Option D: While sensors often require elevated privileges, lack of privileges would not prevent image pulling--it would cause runtime permission errors instead.

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