LTIMindtree Interview Questions, Process, and Tips

Hashmap is a data structure that stores key-value pairs using a hash function.

• Hashmap uses a hash function to map keys to their corresponding values.

• It has constant time complexity for insertion, deletion, and retrieval.

• Collisions can occur when two keys map to the same index, which is resolved using separate chaining or open addressing.

• Load factor determines the threshold for resizing the hashmap.

• Java's implementation...read more

Concurrent hashmap allows multiple threads to access and modify the map concurrently without causing data inconsistency.

• Concurrent hashmap is thread-safe and allows multiple threads to access and modify the map concurrently.

• It uses a technique called lock striping to divide the map into segments and apply locks to each segment instead of the entire map.

• This allows multiple threads to access different segments of the ma...read more

Different scopes of beans refer to their visibility and accessibility within an application.

• Beans can have different scopes such as singleton, prototype, request, session, and global session.

• Singleton scope means only one instance of the bean is created and shared throughout the application.

• Prototype scope means a new instance of the bean is created every time it is requested.

• Request scope means a new instance of the b...read more

Hibernate framework provides ORM capabilities, simplifies database access, and improves performance.

• Hibernate reduces boilerplate code by providing ORM capabilities.

• It simplifies database access by abstracting away the underlying SQL.

• Hibernate improves performance by caching data and reducing database round trips.

• It supports lazy loading, which improves performance by loading data only when needed.

• Hibernate supports mu...read more

.NET Core is a cross-platform framework while MVC is a design pattern for building web applications.

• MVC is a design pattern that can be used with .NET Core or other frameworks

• .NET Core is a lightweight and modular framework for building web applications

• MVC provides a structured approach to building web applications

• Both can be used together to build scalable and maintainable web applications

Power BI is a business analytics service by Microsoft that provides interactive visualizations and business intelligence capabilities.

• Power BI allows users to connect to various data sources and create interactive reports and dashboards.

• It provides a wide range of visualization options such as charts, graphs, maps, and tables.

• Users can also create custom visuals using the Power BI developer tools.

• Power BI integrates wi...read more

Drill down is navigating from summary data to detailed data, while drill through is navigating from one report to another.

• Drill down allows users to see more detailed information by clicking on a summary data point.

• Drill through allows users to navigate from one report to another, typically by clicking on a hyperlink.

• Drill down is used to explore data within a single report, while drill through is used to navigate betw...read more