Accenture Senior Software Engineer Interview Questions and Answers

Q1. Difference between Interface and Abstraction
Ans. 
Interface defines a contract for a class to implement while Abstraction hides the implementation details.
• Interface is a blueprint of a class that defines what methods a class must implement.

• Abstraction is a concept where only relevant information is shown and irrelevant details are hidden.

• Interfaces can have multiple inheritance while Abstraction can be achieved through abstract classes or interfaces.

• Example: Interface...read more
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Q2. How data flows from frontend to backend in Asp.net core
Ans. 
Data flows from frontend to backend in Asp.net core through HTTP requests and responses.
• Frontend sends HTTP requests to backend API endpoints

• Backend processes the requests and sends back HTTP responses

• Data can be passed in the request body, query parameters, or headers

• Example: Frontend sends a POST request to create a new user, backend receives the request, processes it, and sends a success response
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Q3. Functions vs Stored Procedure
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Functions are reusable code blocks that return a value, while stored procedures are precompiled SQL statements that can perform multiple operations.
• Functions return a value, while stored procedures do not necessarily return a value.

• Functions can be used in SQL queries, while stored procedures are called using EXECUTE statement.

• Functions are easier to test and debug compared to stored procedures.

• Stored procedures can co...read more
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Q1. Sql join query related questions
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Q2. Sql find duplicate
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Use SQL query with GROUP BY and HAVING clause to find duplicates in a table.
• Use GROUP BY clause to group rows with same values

• Use HAVING clause to filter out groups with count greater than 1

• Example: SELECT column_name, COUNT(*) FROM table_name GROUP BY column_name HAVING COUNT(*) > 1
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Q1. Package discussion
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Q2. Company policies
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Q1. What are the new features of Spring Boot 3.
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Spring Boot 3 introduces new features like improved performance, enhanced security, and support for the latest Java versions.
• Improved performance with faster startup times and reduced memory consumption

• Enhanced security features such as built-in support for OAuth 2.0 and JWT

• Support for the latest Java versions like Java 17

• Introduction of new modules and APIs for easier development and integration
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Q2. How do you use Spring Security
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Spring Security is used for authentication and authorization in Java applications.
• Configuring security settings in XML or Java configuration

• Defining authentication providers and user roles

• Securing endpoints with annotations like @PreAuthorize

• Customizing login and logout pages
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Create Crud API to find employees based on employee id given
Use JUnit5 and mockito to write its tests to cover all possible scenarios.