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I applied via Naukri.com and was interviewed before May 2023. There were 2 interview rounds.
I follow normalization rules to avoid data redundancy and ensure data integrity.
Follow normalization rules to organize data efficiently
Avoid data redundancy by breaking down tables into smaller, related tables
Ensure data integrity by defining relationships between tables
Use primary keys to uniquely identify each record
Utilize foreign keys to establish relationships between tables
I follow clean coding practices such as writing readable and maintainable code, using meaningful variable names, following coding standards, and writing unit tests.
Use meaningful variable and function names
Follow coding standards and conventions
Write clean and readable code
Write unit tests for code coverage
The current CTC is confidential and not disclosed during interviews.
CTC is confidential information between the employee and employer
It is not appropriate to discuss salary details during interviews
Focus on discussing skills, experience, and qualifications relevant to the job
I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.
Custom hooks in React are reusable functions that allow you to extract component logic into separate functions for better code organization and reusability.
Custom hooks are created using the 'use' prefix and can be used to share logic between components.
Use cases for custom hooks include fetching data from an API, handling form state, managing local storage, and more.
Example of a custom hook for API call: const useFetc...
useMemo is used to memoize a value, while useCallback is used to memoize a function.
useMemo is used to memoize a value and recompute it only when its dependencies change.
useCallback is used to memoize a callback function and prevent unnecessary re-renders.
Example: useMemo can be used to memoize the result of a complex computation, while useCallback can be used to memoize an event handler function.
Class-based components use ES6 classes and have lifecycle methods, while functional components are simpler and use functions.
Class-based components use ES6 classes to create components, while functional components are created using functions.
Class-based components have lifecycle methods like componentDidMount and componentDidUpdate, while functional components do not.
Functional components are simpler and more lightweig...
Implementing the lifecycle of a React component in a functional component
Use the useEffect hook to replicate lifecycle methods like componentDidMount, componentDidUpdate, and componentWillUnmount
Pass an empty array as the second argument to useEffect to mimic componentDidMount
Pass a variable or state as the second argument to useEffect to mimic componentDidUpdate
Return a cleanup function inside useEffect to mimic compo
Various state management techniques in React include Context API, Redux, and local state.
Context API: React's built-in solution for passing data through the component tree without having to pass props down manually at every level.
Redux: A popular state management library for React applications, allowing for a centralized store to manage application state.
Local state: Managing state within individual components using us
Redux is a predictable state container for JavaScript apps. Middlewares are functions that intercept actions before they reach the reducer.
Redux follows a unidirectional data flow architecture.
Middlewares in Redux are functions that can intercept, modify, or dispatch actions.
Common use cases for middlewares include logging, asynchronous API calls, and handling side effects.
Examples of popular Redux middlewares are Redu...
Hoisting in JavaScript is the behavior where variable and function declarations are moved to the top of their containing scope during the compilation phase.
Variable declarations are hoisted to the top of their scope, but not their initializations.
Function declarations are fully hoisted, meaning they can be called before they are declared.
Hoisting can lead to unexpected behavior if not understood properly.
Event bubbling is the propagation of events from the target element up through its ancestors in the DOM tree.
Events triggered on a child element will 'bubble up' and trigger on parent elements.
Event listeners can be attached to parent elements to handle events from multiple child elements.
Stopping event propagation can be done using event.stopPropagation() or event.stopImmediatePropagation().
Block scope and function scope are two types of scopes in JavaScript that determine the visibility and accessibility of variables.
Block scope refers to the visibility of variables within a block of code enclosed by curly braces. Variables declared with 'let' and 'const' have block scope.
Function scope refers to the visibility of variables within a function. Variables declared with 'var' have function scope.
Variables de...
Yes, I have experience working with semantic tags in HTML.
Used semantic tags like <header>, <nav>, <main>, <section>, <article>, <aside>, <footer> for better structure and SEO.
Understand the importance of using semantic tags for accessibility and search engine optimization.
Semantic tags help in organizing content and making it more readable for developers and browsers.
Various methods for creating an object in JavaScript include object literals, constructor functions, ES6 classes, and Object.create() method.
Object literals: var obj = { key: value };
Constructor functions: function ObjectName() { this.key = value; } var obj = new ObjectName();
ES6 classes: class ClassName { constructor() { this.key = value; } } var obj = new ClassName();
Object.create() method: var obj = Object.create(pr
Shallow copy only copies the references of nested objects, while deep copy creates new copies of nested objects.
Shallow copy creates a new object but does not create copies of nested objects, only copies their references.
Deep copy creates a new object and also creates new copies of all nested objects.
Shallow copy can be achieved using Object.assign() or spread operator, while deep copy can be achieved using JSON.parse(
The code will throw an error because 'a' is declared but not initialized.
The code will result in a ReferenceError because 'a' is declared but not assigned a value.
Variables declared with 'const' must be initialized at the time of declaration.
Initializing 'a' with a value before calling test() will prevent the error.
CSS can be used to arrange elements in a row and column layout using flexbox or grid layout properties.
Use display: flex; for a row layout and display: flex; flex-direction: column; for a column layout
Use justify-content and align-items properties to align items in the main axis and cross axis respectively
For grid layout, use display: grid; and grid-template-columns or grid-template-rows to define the layout
Yes, I have utilized CSS preprocessors such as SASS and LESS.
I have experience using SASS to streamline my CSS workflow by utilizing variables, mixins, and nesting.
I have also worked with LESS to improve code organization and maintainability through features like variables and functions.
The color applied will be based on the specificity of the selector, with ID having higher specificity than class.
ID has higher specificity than class in CSS
Color applied will be based on the selector with higher specificity
Example: If ID selector has color red and class selector has color blue, the color applied will be red
I applied via Job Portal and was interviewed in Nov 2024. There were 2 interview rounds.
posted on 24 Dec 2024
I applied via Indeed and was interviewed in Nov 2024. There was 1 interview round.
I applied via Referral and was interviewed in Oct 2024. There was 1 interview round.
Java 8 introduced several new features including lambda expressions, streams, and functional interfaces.
Lambda expressions: Allow for more concise and readable code by enabling functional programming.
Streams: Provide a way to work with collections of objects in a more functional style.
Functional interfaces: Interfaces with a single abstract method, used to enable lambda expressions.
Optional class: Helps to avoid null p...
Spring boot annotations are used to simplify the development process by providing metadata to the Spring framework.
1. @SpringBootApplication - Main annotation to indicate the main class of a Spring Boot application.
2. @RestController - Annotation for RESTful web services.
3. @Autowired - Dependency injection annotation.
4. @GetMapping, @PostMapping, @PutMapping, @DeleteMapping - Annotations for mapping HTTP requests to c...
String Builder is not synchronized and faster, while String Buffer is synchronized and slower.
String Builder is not thread-safe, while String Buffer is thread-safe.
String Builder is faster due to lack of synchronization, while String Buffer is slower due to synchronization.
String Builder is recommended for single-threaded operations, while String Buffer is recommended for multi-threaded operations.
String pool is a storage area in memory where strings are stored to optimize memory usage by reusing common strings.
String pool helps in reducing memory usage by storing only one copy of each unique string.
Strings created using double quotes are stored in the string pool.
Strings created using new keyword are not stored in the string pool.
There are two main types of memory in a computer system: stack memory and heap memory.
Stack memory is used for static memory allocation and is managed by the compiler. It is typically faster but limited in size.
Heap memory is used for dynamic memory allocation and is managed by the programmer. It is slower but has a larger size.
Examples: C programming language uses stack memory for function calls and heap memory for dy
I applied via Company Website and was interviewed in Oct 2024. There were 2 interview rounds.
Projects are specific tasks or assignments that require a team to work together to achieve a common goal.
Projects involve a defined scope, timeline, and budget.
They require a team of individuals with different skills and expertise.
Examples include developing a new software application, implementing a new system, or conducting a research study.
I have worked on a variety of tech stacks including Java Spring, React, Node.js, and MongoDB.
Java Spring
React
Node.js
MongoDB
posted on 25 Oct 2024
Docker is a platform for developing, shipping, and running applications in containers. Kubernetes is a container orchestration tool for managing containerized applications across a cluster of nodes.
Docker allows developers to package applications and dependencies into containers for easy deployment.
Kubernetes automates the deployment, scaling, and management of containerized applications.
Docker containers are lightweig...
Deploying an app in Kubernetes involves creating a deployment configuration, defining pods, services, and managing resources.
Create a deployment configuration file specifying the app's image, ports, and replicas
Define pods to run the app containers
Create services to expose the app internally or externally
Manage resources such as CPU and memory limits for optimal performance
Interfaces in Golang allow for defining behavior without specifying implementation details.
Interfaces are a collection of method signatures.
A type satisfies an interface if it implements all the methods in the interface.
Interfaces allow for polymorphism in Golang.
Example: type Writer interface { Write([]byte) (int, error) }
Example: type MyWriter struct {} func (mw MyWriter) Write(data []byte) (int, error) { return len(
Goroutines are lightweight threads managed by Go runtime, allowing concurrent execution of functions.
Goroutines are created using the 'go' keyword followed by a function call.
They are multiplexed onto multiple OS threads by the Go runtime.
Example: go func() { fmt.Println('Hello, goroutine!') }
Goroutines are used for concurrent programming in Go, enabling parallelism.
I applied via Naukri.com and was interviewed in Oct 2024. There was 1 interview round.
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...
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
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...
I applied via Job Portal and was interviewed in Nov 2024. There was 1 interview round.
Angular is a popular open-source front-end web application framework developed by Google.
Angular is used for building dynamic web applications.
It allows for the creation of single-page applications.
Angular uses TypeScript for building applications.
It provides features like data binding, dependency injection, and routing.
Angular has a large community and ecosystem of libraries and tools.
Examples: AngularJS, Angular 2, A
Routing is the process of selecting a path for network traffic to travel from source to destination.
Routing involves determining the best path for data packets to travel through a network
Routers use routing tables to make decisions on where to send data packets
Routing protocols like OSPF and BGP help routers communicate and update routing information
There are various types of forms, such as physical forms, digital forms, legal forms, etc.
Physical forms: Paper-based forms that are filled out by hand.
Digital forms: Electronic forms that are filled out online or through software.
Legal forms: Forms used for legal purposes, such as contracts or agreements.
Lazy loading in Angular is a technique used to load modules only when they are needed, improving performance by reducing initial load time.
Lazy loading helps in reducing the initial bundle size of the application by loading modules asynchronously.
It improves the performance of the application by only loading the modules that are required at a particular time.
Lazy loading is achieved by using the loadChildren property i...
The rxjs operator in Angular is used for reactive programming and handling asynchronous data streams.
RxJS operators are functions that build on the observables foundation to enable sophisticated manipulation of asynchronous data streams.
Operators can be used to filter, transform, combine, and more on observables.
Example: map(), filter(), mergeMap(), switchMap()
Testing frameworks are tools that help automate the process of testing software applications.
Testing frameworks provide a structure for writing and executing test cases.
They offer features like test data management, test case organization, and reporting.
Examples include JUnit for Java, NUnit for .NET, and pytest for Python.
To load an Angular application, you can use the Angular CLI command 'ng serve' to start a development server.
Use the Angular CLI command 'ng serve' to start a development server
Navigate to the project directory in the terminal and run 'ng serve'
Open a web browser and go to 'http://localhost:4200/' to view the application
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Junior Software Engineer
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