Test your knowledge

Before moving on to the next chapter, test your knowledge with the following questions:

1. Assume on top of default EMR configurations, you need to install a few additional libraries and, post-installation, execute a few scripts. This process will be repeated every time a new instance is added to the cluster. How will you implement this while launching your cluster?
2. You have a running EMR cluster, where you have one Hive and one Spark job configured to be executed in a sequence as EMR steps. You have noticed that step 2, which is a Spark job, is failing. With further analysis, you have identified that all tasks of that Spark job are completed but one task is running for a long period of time, which makes the whole process slow. How will you resolve this problem?
3. Your organization has compliance policies that say all the application logs need to be persistent at least for a year. You are going to integrate EMR for one of your transient cluster use...