Excellon Software Interview Questions, Process, and Tips

Q1. What is MVC? What is MVC page Life Cycle?
Ans. 
MVC stands for Model-View-Controller. It is a software architectural pattern for implementing user interfaces.
• MVC separates the application into three main components: Model (data), View (UI), and Controller (logic)

• MVC page life cycle involves the following stages: Routing, Controller Initialization, Action Execution, Result Execution, and Rendering
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Q2. What is IEnumerable?
Ans. 
IEnumerable is an interface in C# that represents a collection of objects that can be enumerated.
• It is used to iterate over a collection of objects.

• It is part of the System.Collections namespace.

• It is the base interface for all non-generic collections in C#.

• It is commonly used with LINQ queries to query data from collections.

• Example: IEnumerable numbers = new List { 1, 2, 3 };
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Q3. Can we have multiple Layout page?
Ans. 
Yes, we can have multiple Layout pages in ASP.NET MVC.
• Multiple Layout pages can be created in ASP.NET MVC to provide different layouts for different sections of the website.

• Each View can specify which Layout page to use by setting the Layout property in the View file.

• Layout pages can be nested, allowing for a hierarchy of layouts to be used.

• Example: _Layout.cshtml, _AdminLayout.cshtml, _UserLayout.cshtml
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Q4. How to change layout page during runtime?
Ans. 
You can change the layout page during runtime by dynamically setting the layout property in the code behind.
• Set the layout property in the code behind based on certain conditions or user input.

• Use conditional statements to determine which layout page to use.

• Example: if(userRole == 'admin') { Layout = '~/Views/Shared/_AdminLayout.cshtml'; } else { Layout = '~/Views/Shared/_UserLayout.cshtml'; }
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Q5. What are types of filters in MVC?
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Types of filters in MVC include Authorization filters, Action filters, Result filters, and Exception filters.
• Authorization filters restrict access to actions based on user roles or permissions.

• Action filters execute code before and after an action method is called.

• Result filters execute code before and after the result of an action method is executed.

• Exception filters handle exceptions thrown during the execution of an
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Q6. What is Authentication?
Ans. 
Authentication is the process of verifying the identity of a user or system.
• Authentication ensures that the user is who they claim to be before granting access to resources.

• Common authentication methods include passwords, biometrics, security tokens, and multi-factor authentication.

• Examples of authentication protocols include OAuth, SAML, and OpenID Connect.
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Q7. What is Authorization?
Ans. 
Authorization is the process of determining if a user has the necessary permissions to access a resource or perform an action.
• Authorization involves verifying the identity of a user and checking if they have the required permissions.

• It is different from authentication, which is the process of verifying the identity of a user.

• Authorization can be role-based, where permissions are assigned based on roles, or attribute-ba...read more
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Q8. What is Partial View and View?
Ans. 
Partial View is a reusable view component in ASP.NET MVC, while View is a complete page or layout.
• Partial View is a smaller, reusable view component that can be rendered within a View or another Partial View.

• View is a complete page or layout that can contain multiple Partial Views and is typically returned by a controller action.

• Partial Views are useful for rendering common elements like headers, footers, or sidebars a...read more
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Q9. What is View_Start class?
Ans. 
View_Start class is used to define common settings for all views in an ASP.NET MVC application.
• View_Start class is a special class in ASP.NET MVC that is used to define common settings for all views in the application.

• It is typically used to set properties like layout, master page, and other view-related settings.

• By defining these settings in View_Start class, they are automatically applied to all views in the applicat...read more
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Q10. Coding Question: Variable 1 = 10; Variable 2 = 20; Variable 3 = 0; Variable 3 = Variable 1 * Variable 2; Do Calculation without using Multiplication
Ans. 
Use bitwise operations to perform multiplication without using the * operator.
• Use bitwise left shift operator to multiply Variable 1 by 2^n where n is the value of Variable 2.

• Add the result of each left shift operation to get the final result.
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Q11. Find the second highest salary employee names in Employee table?
Ans. 
Use SQL query to find the second highest salary employee names in Employee table.
• Use ORDER BY clause to sort the salaries in descending order.

• Use LIMIT 1 OFFSET 1 to get the second highest salary.

• Join the Employee table with itself to get the employee names corresponding to the second highest salary.
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Q12. What is collections?
Ans. 
Collections are classes in .NET that allow you to store and manage groups of objects.
• Collections provide various data structures like lists, queues, stacks, dictionaries, etc.

• They allow for easy manipulation and retrieval of data.

• Examples include List, Queue, Stack, Dictionary.
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Q13. What is method overloading and method overriding?
Ans. 
Method overloading is when multiple methods have the same name but different parameters. Method overriding is when a subclass provides a specific implementation of a method that is already provided by its parent class.
• Method overloading allows a class to have multiple methods with the same name but different parameters.

• Method overriding occurs in a subclass when a method has the same name and parameters as a method in ...read more
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Q14. What is String and StringBuilder?
Ans. 
String is a sequence of characters, while StringBuilder is a mutable sequence of characters used for efficient string manipulation.
• String is immutable, meaning once created, it cannot be changed. StringBuilder is mutable, allowing for efficient modifications.

• String concatenation creates a new string object each time, while StringBuilder allows for efficient appending of characters.

• String is used for constant strings, w...read more
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Q15. What are HTML helpers? Can we create custom HTML Helpers?
Ans. 
HTML helpers are methods that help in rendering HTML in a view. Yes, we can create custom HTML helpers.
• HTML helpers are methods that generate HTML markup in a view.

• They help in reducing the amount of HTML code that needs to be written in a view.

• Custom HTML helpers can be created by defining extension methods on the HtmlHelper class.

• Custom HTML helpers can be useful for generating reusable HTML components or complex HTM...read more
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Q16. What is Solid Principles?
Ans. 
SOLID principles are a set of five design principles that help developers create more maintainable, flexible, and scalable software.
• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subc...read more
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Q17. What is ViewBag and ViewData?
Ans. 
ViewBag and ViewData are used in ASP.NET MVC to pass data from controller to view.
• ViewBag is a dynamic property that allows you to pass data from controller to view.

• ViewData is a dictionary object that allows you to pass data from controller to view.

• ViewBag is a dynamic object while ViewData is a dictionary object.

• ViewBag is easier to use but ViewData is type-safe.
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Easy Apptitude round But its on pen and paper

Q1. Introduce yourself
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Q2. SMOKE AND SANITY,REGRESSION,VARIOUS SDLC STEPS
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Q3. WHAT IS TESTING
Ans. 
Testing is the process of evaluating a system or software to identify defects or errors.
• Testing involves executing a system or software with the intention of finding defects.

• It is done to ensure that the system meets the specified requirements and functions as expected.

• Testing can be performed at various levels such as unit testing, integration testing, and system testing.

• Different testing techniques like functional te...read more
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Basic maths and aptitude like percentage, profit loss, distance, speed, average, age.

Q1. Use of c language, write code on array, which language is better c or java, write another code in HTML
Ans. 
C language is low-level and efficient, Java is high-level and platform-independent, HTML is used for web development.
• C language is better for system programming due to its low-level nature and efficiency.

• Java is better for cross-platform development and has a larger standard library.

• Example C code: int numbers[] = {1, 2, 3, 4, 5};

• Example Java code: String[] names = {"Alice", "Bob", "Charlie"};

• HTML is used for creating ...read more
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Q1. Basic information , why do you want to join, Strengths
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Q1. About domain knowledge and overall experience including process.
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Q1. Behavioral interview including situational questions and domain knowledge with process knowledge etc.
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Q1. About experience and further discussions.
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Q1. All the finance related questions
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Q2. Types of accounts, What is CRM, What is Lead, prospect etc.
Ans. 
Accounts in CRM can be of different types such as customer, partner, vendor, etc. A lead is a potential customer who has shown interest in your product or service.
• Types of accounts in CRM include customer, partner, vendor, and competitor

• CRM stands for Customer Relationship Management and is a software used to manage interactions with customers and potential customers

• A lead is a potential customer who has shown interest...read more
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Q1. Brief introduction and past experience.
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Topic will be given to speak.

Q1. Past experience, Salary discussion and confirmation of documents.
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