Tata Elxsi Senior Software Engineer Interview Questions, Process, and Tips

Use C code to find the 2nd smallest and 2nd largest elements in an array.

• Sort the array in ascending order to find the 2nd smallest element.

• Sort the array in descending order to find the 2nd largest element.

Services in Android are components that run in the background to perform long-running operations.

• Services can be used to play music in the background while the user interacts with other apps.

• They can also be used to download files from the internet even when the app is not in the foreground.

• Services can run indefinitely or be scheduled to run at specific times.

• They can communicate with other components using broadcasts

SQL joins are used to combine rows from two or more tables based on a related column between them.

• Joins are used to retrieve data from multiple tables in a single query

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id

Redshift is a fully managed data warehouse service provided by Amazon Web Services (AWS).

• Redshift is designed for analytic workloads and can handle large datasets.

• It uses columnar storage to optimize query performance.

• Redshift allows users to run complex queries across multiple databases.

• It integrates with various BI tools like Tableau, Looker, and Power BI.

• Redshift Spectrum enables users to run queries against data st