Mphasis Azure Data Engineer Interview Questions and Answers

Microservices are a software development technique where applications are composed of small, independent services that communicate with each other.

• Microservices are small, independent services that focus on specific business functions.

• Each microservice runs its own process and communicates with other services through APIs.

• Microservices can be developed, deployed, and scaled independently.

• Examples of companies using mic

Containerisation is a method of packaging, distributing, and running applications in isolated environments called containers.

• Containers are lightweight, portable, and efficient units that encapsulate an application and its dependencies.

• They provide a consistent environment for applications to run across different platforms.

• Popular containerization platforms include Docker and Kubernetes.

• Containerisation helps in achiev...read more

To configure Application Gateway, create a resource group, create an application gateway, configure listeners, backend pools, and rules.

• Create a resource group

• Create an application gateway

• Configure listeners

• Configure backend pools

• Configure rules

We are using various Linux distributions based on customer requirements.

• Red Hat Enterprise Linux

• Ubuntu

• CentOS

• SUSE Linux Enterprise

• Debian

ITIL processes are a set of best practices for IT service management.

• ITIL stands for Information Technology Infrastructure Library

• ITIL processes include incident management, problem management, change management, and service level management

• ITIL processes aim to improve efficiency, effectiveness, and quality of IT services

• ITIL processes are widely adopted by organizations worldwide

Performance tuning in Azure Data Factory involves optimizing data flows and activities to improve efficiency and reduce processing time.

• Identify bottlenecks in data flows and activities

• Optimize data partitioning and distribution

• Use appropriate data integration patterns

• Leverage caching and parallel processing

• Monitor and analyze performance metrics

Types of clusters in Databricks include Standard, High Concurrency, and Single Node clusters.

• Standard cluster: Suitable for running single jobs or workflows.

• High Concurrency cluster: Designed for multiple users running concurrent jobs.

• Single Node cluster: Used for development and testing purposes.

To find the highest 2nd salary in the employee table, you need to use SQL query with the ORDER BY and LIMIT clauses.

• Use SQL query with ORDER BY clause to sort salaries in descending order

• Use LIMIT 1,1 to get the second highest salary

Use SQL query with GROUP BY and HAVING clause to find duplicate rows.

• Use GROUP BY to group rows with same values

• Use HAVING COUNT(*) > 1 to filter out duplicate rows

• Example: SELECT column1, column2, COUNT(*) FROM table_name GROUP BY column1, column2 HAVING COUNT(*) > 1

Azure Synapse is a cloud-based analytics service that brings together big data and data warehousing.

• Azure Synapse integrates big data and data warehousing capabilities in a single service

• It allows for data ingestion, preparation, management, and serving for BI and machine learning

• Supports both serverless and provisioned resources for data processing

• Offers integration with Azure Machine Learning, Power BI, and Azure Dat