Oracle Cloud Infrastructure Developer 2021 Associate: 1Z0-1084-21

Correct Answer: C

https://docs.cloud.oracle.com/en-us/iaas/Content/API/Concepts/sdks.htm

Software Development Kits (SDKs) Build and deploy apps that integrate with Oracle Cloud Infrastructure services. Each SDK provides the tools you need to develop an app, including code samples and documentation to create, test, and troubleshoot. In addition, if you want to contribute to the development of the SDKs, they are all open source and available on GitHub. SDK for Java Python SDK Ruby SDK Go SDK

Correct Answer: C

Application and systems logs can help you understand what is happening inside your cluster. The logs are particularly useful for debugging problems and monitoring cluster activity. Most modern applications have some kind of logging mechanism; as such, most container engines are likewise designed to support some kind of logging. The easiest and most embraced logging method for containerized applications is to write to the standard output and standard error streams.

https://kubernetes.io/docs/concepts/cluster-administration/logging/ https://blogs.oracle.com/developers/5-best-practices-for-kubernetes-security

Correct Answer: B

Debugging Pods

The first step in debugging a pod is taking a look at it. Check the current state of the pod and recent events

with the following command:

kubectl describe pods ${POD_NAME}

Look at the state of the containers in the pod. Are they all Running? Have there been recent restarts?

Continue debugging depending on the state of the pods.

My pod stays pending

If a pod is stuck in Pending it means that it can not be scheduled onto a node. Generally this is because

there are insufficient resources of one type or another that prevent scheduling. Look at the output of the kubectl describe ... command above. There should be messages from the scheduler about why it can not schedule your pod. https://kubernetes.io/docs/tasks/debug-application-cluster/debug-pod-replication-controller/