How will you improve the performance of a program in Hive? Can we use Hive for Online Transaction Processing (OLTP) systems? How will you change the data type of a column in Hive? What is Metastore in Hive? What is SerDe in Hive? What are the components in Hive data model? What are the different […]
What are the differences between RDBMS and HBase data model? Explain what is Hbase? Explain why to use Hbase? Mention what are the key components of Hbase? Explain what does Hbase consists of? Mention how many operational commands in Hbase? Explain what is WAL and Hlog in Hbase? When you should use Hbase? In Hbase […]
What are the main components of a Hadoop Application? What is the core concept behind Apache Hadoop framework? What is Hadoop Streaming? What is the difference between Nodes in HDFS? What is the optimum hardware configuration to run Apache Hadoop? What do you know about Block and Block scanner in HDFS? What are the default […]
How does Greenplum handle data encryption for sensitive information like personally identifiable information (PII) What is the role of the Query Optimizer in Greenplum How does Greenplum handle data skew detection and mitigation How does Greenplum handle data encryption at rest and in transit How does Greenplum handle data lineage and data governance requirements Can […]
Explain the concept of dataflow in GCP Explain the use of Cloud Machine Learning Engine in GCP What is Cloud Composer in GCP Explain the use of Cloud Datalab in GCP Explain the use of Cloud Dataflow in GCP How can you manage data access and permissions in GCP Explain the use of Cloud Composer […]
FLUME What is Flume? What is Apache Flume? Which is the reliable channel in Flume to ensure that there is no Data Loss? How can Flume be used with Hbase? What is an Agent? Is it possible to Leverage Real Time Analysis on the Big Data collected by Flume directly? What is a Channel? Explain […]
Apache Flink See you using Flink, briefly introduce Flink? What are the differences between Flink and Spark Streaming? What are the Flink component stacks Does Flink need to depend on Hadoop? How big is your FLink cluster? What is the Flink programming model? What are the roles of Flink cluster? What are the functions? What […]
Data Warehousing Architecture What is the Main Difference between View and Materialized View? What is Junk Dimension? What is Data Warehouse architecture? What is an integrity constraints and what are different types of integrity constraints? Why is that Data Architect actually monitor and enforce compliance data standards? Explain the different data models that are available […]
Data Structures What is data structure? What are the goals of data structure? What does abstract data type mean? What is the difference between a stack and an array? What do you mean by recursive definition? What is sequential search? What actions are performed when a function is called? What actions are performed when a […]
Apache Cassandra Explain what is Cassandra? List the benefits of using Cassandra? What is the use of Cassandra and why to use Cassandra? Explain the concept of tunable consistency in Cassandra? Explain what is composite type in Cassandra? How does Cassandra write? How Cassandra stores data? Define the management tools in Cassandra? Mention what are […]
