Real interview questions asked at Persistent Systems. Practice the most frequently asked questions and land your next role.
Persistent Systems data engineering interviews test your ability across multiple domains. These questions are sourced from real Persistent Systems interview experiences and sorted by frequency. Practice the ones that matter most.
Describe a time when you had to deal with a difficult coworker.
Data Lakehouse architecture in Azure?
Describe Amazon Athena and how it interacts with S3.
Describe step scaling policies vs. target tracking policies in AWS Auto Scaling.
Explain AWS Lake Formation and its benefits.
Explain the difference between S3 One Zone-IA and S3 Standard-IA.
How do you handle cost optimization in AWS EMR clusters?
How do you secure data at rest and in transit for AWS RDS?
How does IAM role chaining work?
How would you optimize an ADF pipeline for high performance?
In ADF, how do you handle a scenario where you need to process only new or changed files from a source?
How would you implement VPC peering between two AWS accounts?
What are provisioned throughput and auto-scaling in DynamoDB?
SQL Query for 2nd Highest Salary without Using MAX()
What are partitioning strategies in Redshift?
What are transient clusters in EMR, and when would you use them?
Download the complete interview prep bundle with expert answers. Study offline, on your commute, anywhere.