Business Labs Interview Questions and Answers

About the wireframes

Q1. Regarding SDLC phases
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Q2. Regarding requirement gathering
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Q1. What types of projects have you worked on?
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Q2. They asked questions specific to technology.
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They give me a set of 68 questions. It was McQ and not related to my BA domain.

This was a Normal Interview. I was interviewed by a panel of BA, Developers and one PM

Q1. Oops Concept in c#
Ans. 
Oops concept in C# refers to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation hides the internal state of an object and only exposes necessary information.

• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• Abstraction focuses on...read more
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Q2. Manage and unmanaged code
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Q3. Dependency injection
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Q4. Filter and its type
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A filter is a tool used to select specific data from a larger set based on certain criteria.
• Filters can be used in various programming languages and databases to narrow down results.

• Types of filters include text filters, numeric filters, date filters, and custom filters.

• Examples of filters include WHERE clause in SQL, filter() function in Python, and filter() method in JavaScript.
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Q5. View in sql server
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A view in SQL Server is a virtual table that contains the result set of a SELECT statement.
• Views are used to simplify complex queries by storing them as a virtual table.

• Views can be used to restrict access to specific columns or rows of a table.

• Views can be created using the CREATE VIEW statement.

• Example: CREATE VIEW vwEmployee AS SELECT FirstName, LastName FROM Employees;
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Q6. Primary key vs unique key
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Primary key uniquely identifies a record in a table, while unique key ensures uniqueness but allows null values.
• Primary key enforces uniqueness and not null constraint on a column

• Primary key can consist of multiple columns

• Unique key enforces uniqueness but allows null values

• Unique key can be applied to multiple columns as well
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Q7. Procedure vs function
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Procedures are a set of instructions that perform a specific task, while functions return a value after performing a task.
• Procedures do not return a value, while functions do.

• Functions can be called within expressions, while procedures cannot.

• Functions are more versatile and reusable compared to procedures.
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Q8. Trigger in sql server
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A trigger in SQL Server is a special type of stored procedure that automatically executes when certain events occur in a database.
• Triggers can be used to enforce business rules, audit changes, or replicate data.

• There are two main types of triggers in SQL Server: DML triggers and DDL triggers.

• DML triggers fire in response to data manipulation language (DML) events like INSERT, UPDATE, and DELETE.

• DDL triggers fire in res...read more
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Q9. Interface in c#
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Interface in C# is a reference type that defines a contract for classes to implement certain methods and properties.
• Interfaces cannot have implementation, only method signatures and properties.

• Classes can implement multiple interfaces in C#.

• Interfaces are used to achieve abstraction and multiple inheritance in C#.

• Example: public interface IShape { void Draw(); }

• Example: public class Circle : IShape { public void Draw()...read more
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Q10. Abstract class vs interface
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Abstract class is a class that can have both abstract and non-abstract methods, while interface is a contract that defines methods that must be implemented by a class.
• Abstract class can have constructor, fields, and methods, while interface cannot have any implementation.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract classes are used when some common functionality needs ...read more
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Q11. Partial view in.det
Ans. 
Partial view in ASP.NET MVC allows reusing common UI elements across multiple views.
• Partial views are like reusable components that can be included in multiple views

• They help in reducing code duplication and improving maintainability

• Partial views are rendered using Html.Partial or Html.RenderPartial methods
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Q12. Method overloading vs overriding
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Method overloading is having multiple methods in the same class with the same name but different parameters. Method overriding is redefining a method in a subclass with the same name and parameters as in the superclass.
• Method overloading involves multiple methods with the same name but different parameters.

• Method overriding involves redefining a method in a subclass with the same name and parameters as in the superclas...read more
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Q13. Union vs union all
Ans. 
Union combines and removes duplicates, while union all combines all rows including duplicates.
• Union removes duplicates, while union all includes duplicates.

• Union is slower as it has to remove duplicates, while union all is faster.

• Use union when you want to remove duplicates, use union all when duplicates are acceptable.
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Q14. Foreign key In sql
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Foreign key in SQL is a field in a table that links to a primary key in another table, enforcing referential integrity.
• Foreign key constraints ensure data consistency between related tables

• Foreign key values must exist in the referenced table's primary key column

• Foreign key can be used to establish relationships between tables
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Q15. Constructor in c#
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Constructor in C# is a special type of method that is automatically called when an instance of a class is created.
• Constructors have the same name as the class and do not have a return type.

• They can be used to initialize the data members of the class.

• Constructors can be overloaded to have multiple versions with different parameters.

• Example: public class Person { public Person(string name) { this.Name = name; } }
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Q1. Tell me about your project
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Q2. Salary discussion
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Q1. What is the diffrences between methlogies.
Ans. 
Different methodologies in business analysis include Agile, Waterfall, and Lean.
• Agile focuses on flexibility and collaboration, with iterative development cycles.

• Waterfall follows a linear approach with distinct phases like requirements, design, development, testing, and deployment.

• Lean aims to eliminate waste and improve efficiency by continuously improving processes.

• Each methodology has its own strengths and weakness...read more
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Q2. Have you worked with govt. client.
Ans. 
Yes, I have worked with government clients in the past.
• I have experience working with government agencies on various projects.

• I am familiar with the unique requirements and processes involved in government projects.

• I have successfully delivered solutions that met the specific needs of government clients.

• For example, I worked on a project for a government agency to improve their data analysis capabilities.
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