Hard Shell Technologies Junior Dot Net Software Developer Interview Questions and Answers

Q1. MVC vs .NET lifecycle
Ans. 
MVC is a design pattern used in .NET development, while .NET lifecycle refers to the stages of a .NET application's execution.
• MVC is a design pattern that separates an application into three main components: Model, View, and Controller.

• .NET lifecycle refers to the stages of a .NET application's execution, including initialization, execution, and termination.

• MVC helps in achieving separation of concerns and making the c...read more
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Q2. Dispose vs Finalize
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Dispose is used to release unmanaged resources immediately, while Finalize is used for cleanup operations before an object is destroyed by the garbage collector.
• Dispose is called explicitly by the developer, while Finalize is called by the garbage collector.

• Dispose should be implemented in classes that directly interact with unmanaged resources.

• Finalize should be implemented in classes that need to release resources be...read more
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Q3. Liscov Substitution
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Q4. Dom Sanitizer in Angular
Ans. 
DOM sanitizer in Angular is used to sanitize untrusted HTML to prevent XSS attacks.
• DOM sanitizer is used to sanitize HTML content before rendering it in Angular templates.

• It helps prevent Cross-Site Scripting (XSS) attacks by removing potentially harmful content.

• Angular provides a built-in DomSanitizer service for sanitizing HTML content.

• Example: Using DomSanitizer in Angular template to sanitize a URL before rendering
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Q5. Ngrx state management, how do you manage state in your current project?
Ans. 
I use Ngrx for state management in my current project by defining actions, reducers, effects, and selectors.
• Define actions to describe user events or interactions

• Create reducers to specify how state should change in response to actions

• Implement effects to manage side effects like API calls

• Use selectors to retrieve specific pieces of state for components
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Q6. Stored procedure vs Functions
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Stored procedures are precompiled SQL queries stored in the database, while functions are reusable code blocks that return a value.
• Stored procedures are used for performing specific tasks or operations on the database.

• Functions are used to encapsulate logic and can be called within SQL queries or other functions.

• Stored procedures can have input and output parameters, while functions always return a value.

• Stored procedu...read more
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Q7. Model binder in MVC
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Model binder in MVC is used to map data from HTTP requests to action method parameters in controllers.
• Model binder maps form data, query string parameters, and route data to action method parameters in MVC controllers.

• It helps in simplifying the process of extracting data from HTTP requests.

• Model binder can be customized by creating custom model binders to handle complex data binding scenarios.
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Q8. Would transaction be rolled back if innermost stored procedure throws an error ?
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Yes, the transaction will be rolled back if the innermost stored procedure throws an error.
• If an error occurs in the innermost stored procedure, it will cause the entire transaction to be rolled back.

• This ensures that the database remains in a consistent state.

• Rolling back the transaction means that any changes made by the stored procedures within the transaction will be undone.
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Q9. NgOninit vs Constructor
Ans. 
NgOnInit is a lifecycle hook in Angular that is called after the component has been initialized, while the constructor is a TypeScript feature used to initialize class properties.
• NgOnInit is specific to Angular components, while constructor is a general TypeScript feature.

• NgOnInit is used for initialization logic that relies on Angular's view and input bindings being initialized, while constructor is used for basic ini...read more
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Q10. Use of zone.js file
Ans. 
zone.js is a library for managing asynchronous operations in Angular applications.
• zone.js helps in tracking asynchronous operations and their execution context in Angular applications.

• It provides hooks for intercepting asynchronous tasks like setTimeout, setInterval, and promises.

• zone.js can be used for profiling, debugging, and error handling in Angular applications.
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Q11. Write a query to identify and remove duplicated from a table.
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Use a query with GROUP BY and HAVING clause to identify and remove duplicates from a table.
• Use GROUP BY to group rows with the same values

• Use HAVING COUNT(*) > 1 to identify duplicates

• Use DELETE statement to remove duplicates
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Q1. What is REST Framework
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Q2. What are the SQL Queries
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This is related to SQL

Q1. Ospf more deep knowledge
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Q2. Ospf scenario based question
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Q3. STP loop prevention how its working
Ans. 
STP loop prevention is achieved by blocking redundant paths in a network to prevent loops.
• STP (Spanning Tree Protocol) identifies redundant paths in a network

• STP selects a root bridge to be the central point of the network

• STP blocks certain ports to prevent loops while still allowing for redundancy

• If a link fails, STP will unblock a previously blocked port to maintain connectivity
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Q4. More info about Routing if you good any one routing just inform based on they will ask
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Good,SQL query and c# programs

Q1. Oops related questions
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Q2. Design pattern related questions
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Q1. Oop questions they will ask
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Q2. C# basic string var dymaic out ref
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Q3. Sql , dot net
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Q1. This round they will ask strategic question
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Q2. How you will handle the team , deadlines
Ans. 
I will handle the team by setting clear expectations, delegating tasks effectively, monitoring progress, and providing support as needed.
• Set clear goals and deadlines for the team to ensure everyone is on the same page

• Delegate tasks based on team members' strengths and workload

• Regularly check in with team members to monitor progress and offer assistance if needed

• Adjust deadlines or redistribute tasks as necessary to me...read more
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Q1. What is computer
Ans. 
A computer is an electronic device that processes data to perform various tasks.
• Electronic device that can store, retrieve, and process data

• Consists of hardware components like CPU, memory, storage, and input/output devices

• Runs software programs to execute specific tasks

• Examples include desktops, laptops, tablets, and smartphones
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Q2. What is hardware and software?
Ans. 
Hardware refers to physical components of a computer system, while software refers to programs and applications that run on the hardware.
• Hardware includes components like CPU, memory, motherboard, and storage devices.

• Software includes operating systems, applications, and programs that enable users to perform tasks on the computer.

• Examples of hardware: CPU - Central Processing Unit, RAM - Random Access Memory, HDD - Har...read more
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Q1. What is java programming?
Ans. 
Java programming is a high-level, object-oriented programming language used for developing applications and software.
• Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM).

• It is known for its simplicity, readability, and versatility.

• Java is used for developing web applications, mobile apps, desktop applications, and enterprise software.

• Examples of Java frameworks include Spring
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Q2. Java oops concepts?
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Q1. Why should we hire you?
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Q2. Can you relocate?
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Basic question like as time ditance

Basic of dsa sql dbms

Q1. About the SQL server basic question
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Q2. .net fundamentals
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