Question 1

What is a key feature of Airflow’s scheduler in handling ETL jobs?

Options :

A : Periodic scheduling

B : Real-time job execution

C : Immediate job execution

D : Manual job execution

Answer: A

Question 2

What configuration is essential for optimizing Spark performance on Kubernetes?

Options :

A : Kubernetes resource limits

B : Spark shuffle partitions

C : Spark application log levels

D : Kubernetes networking settings

Answer: A

Question 3

What is a key benefit of using Explain Plans for complex queries in Cloudera?

Options :

A : Enhancing data security

B : Identifying performance bottlenecks

C : Increasing data throughput

D : Simplifying data schema

Answer: B

Question 4

What configuration is essential for optimizing Spark performance on Kubernetes?

Options :

A : Kubernetes resource limits

B : Spark shuffle partitions

C : Spark application log levels

D : Kubernetes networking settings

Answer: A

Question 5

How does the spark.sql.shuffle.partitions setting affect performance in Spark SQL?

Options :

A : It sets the number of shuffle partitions

B : It sets the number of cores per executor

C : It defines the memory size for shuffle

D : It manages the number of executors

Answer: A