RKIT Software Full Stack Software Developer Interview Questions and Answers

Q1. 1.diffrence between javaScript and nodejs
Ans. 
JavaScript is a programming language used for web development, while Node.js is a runtime environment for executing JavaScript code outside of a web browser.
• JavaScript is primarily used for client-side scripting, while Node.js is used for server-side scripting.

• JavaScript is executed in a web browser, while Node.js is executed on a server.

• Node.js provides additional modules and libraries for server-side development, suc...read more
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Q2. 2.Tell me the angular lifecycle
Ans. 
Angular lifecycle consists of eight different phases.
• The first phase is ngOnChanges() which is called when a component receives data-bound input properties.

• The second phase is ngOnInit() which is called once the component is initialized.

• The third phase is ngDoCheck() which is called during every change detection run.

• The fourth phase is ngAfterContentInit() which is called after the component's content has been projecte...read more
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Q3. 3. what is the use of ORM Tool
Ans. 
ORM tool is used to map object-oriented programming language to a relational database management system.
• ORM tool helps in reducing the amount of code required to interact with the database.

• It provides an abstraction layer between the application and the database.

• ORM tool helps in managing the database schema and relationships between tables.

• It allows developers to work with objects instead of SQL statements.

• Examples of...read more
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Q4. 4. What is form control build.
Ans. 
Form control build refers to the process of creating and customizing form controls in web development.
• Form controls are elements like text boxes, radio buttons, and dropdown menus that allow users to input data on a website.

• Developers can use HTML, CSS, and JavaScript to build and style form controls to fit the needs of their website or application.

• Form control build also involves adding validation and error handling t
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Q1. What is closure
Ans. 
Closure is a feature in programming languages that allows a function to access variables from its outer scope even after it has finished executing.
• Closure is created when a nested function references variables from its parent function.

• It allows for data encapsulation and privacy in JavaScript.

• Closures are commonly used in event handlers, callbacks, and asynchronous programming.

• They can be used to create private variabl...read more
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Q2. How JS handles hoisting
Ans. 
JS hoisting is a mechanism where variable and function declarations are moved to the top of their scope during compilation.
• Variable declarations are hoisted but not their initializations.

• Function declarations are fully hoisted, including their definitions.

• Hoisting can lead to unexpected behavior if not understood properly.

• Example: console.log(x); var x = 5; // Output: undefined
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Q3. What are the different CSS position properties
Ans. 
CSS position properties determine how an element is positioned on a web page.
• static: default position, elements flow in document order

• relative: positioned relative to its normal position

• absolute: positioned relative to its nearest positioned ancestor

• fixed: positioned relative to the browser window

• sticky: positioned based on scroll position
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Q1. What are the different component lifecycles in react
Ans. 
React has several component lifecycles, including mounting, updating, and unmounting.
• Mounting: when a component is being created and inserted into the DOM

• Updating: when a component is being re-rendered due to changes in props or state

• Unmounting: when a component is being removed from the DOM
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Q2. What is the use of ref in react
Ans. 
Ref is used in React to access and manipulate the DOM directly.
• Ref provides a way to access and modify DOM elements or React components.

• It is commonly used for focusing input fields, triggering animations, or integrating with third-party libraries.

• Ref can be created using the useRef() hook or by using the ref attribute in class components.

• Example: const inputRef = useRef();

• Example: const button
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Q1. Design the DB for slack
Ans. 
Designing the database for Slack
• Create tables for users, channels, messages, and teams

• Use foreign keys to establish relationships between tables

• Include columns for user details, channel details, message content, and timestamps

• Consider indexing frequently queried columns for performance optimization
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Q2. How will you improve the db performanc
Ans. 
To improve db performance, optimize queries, use indexing, cache data, and scale horizontally.
• Optimize queries by using appropriate indexes and avoiding unnecessary joins

• Cache frequently accessed data to reduce database load

• Scale horizontally by distributing the database across multiple servers

• Use database monitoring tools to identify and resolve performance bottlenecks
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Q1. Explain the projects that you worked on
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Q2. What is CDN and list its uses
Ans. 
CDN stands for Content Delivery Network. It is a distributed network of servers that helps deliver web content efficiently.
• CDN improves website performance by caching content closer to the user

• It reduces latency and improves page load times

• CDN helps handle high traffic loads and prevents server overload

• It provides global coverage and ensures content availability worldwide

• CDN can deliver various types of content like im...read more
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Q3. How will improve the api latency of a system
Ans. 
To improve API latency, optimize database queries, use caching, implement load balancing, and optimize code.
• Optimize database queries by using indexes, reducing unnecessary joins, and optimizing query execution plans.

• Implement caching to store frequently accessed data in memory, reducing the need for repeated database queries.

• Use load balancing to distribute incoming requests across multiple servers, preventing any sin...read more
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The Coding was based on DSA questions and logical reasoning. In total there were 6 questions.

The assignment for PHP was given to complete in Framework or CMS. The choice is yours.

Q1. The tech team asked about some tech questions related to the Framework , sql and Database.
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Q2. General questions how you try to enhance your skills, family, friends etc
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Q1. The technical skills and hands on experience into languages and various domains
Ans. Described about the experience into various langauges and different platform apps
Answered by Harsh Patel
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Basic questions like reverse a number, print Fibonacci series, character replacement

Q1. Basic questions on .net framework, c# coding language
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Q2. Advanced level questions on MySql and Linq.
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Q3. What is the best approach to find the missing number from set of consecutive n numbers
Ans. 
One approach is to calculate the sum of all numbers in the set and then subtract the sum of the given numbers to find the missing number.
• Calculate the sum of all numbers in the set using the formula n*(n+1)/2, where n is the total number of elements in the set.

• Calculate the sum of the given numbers in the set.

• Subtract the sum of the given numbers from the sum of all numbers to find the missing number.
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Q1. Salary negotiation and document process. No questions.
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Q1. 1.diffrence between javaScript and nodejs
Ans. 
JavaScript is a programming language used for web development, while Node.js is a runtime environment for executing JavaScript code outside of a web browser.
• JavaScript is primarily used for client-side scripting, while Node.js is used for server-side scripting.

• JavaScript is executed in a web browser, while Node.js is executed on a server.

• Node.js provides additional modules and libraries for server-side development, suc...read more
Answered by AI
View 1 more answer
Q2. 2.Tell me the angular lifecycle
Ans. 
Angular lifecycle consists of eight different phases.
• The first phase is ngOnChanges() which is called when a component receives data-bound input properties.

• The second phase is ngOnInit() which is called once the component is initialized.

• The third phase is ngDoCheck() which is called during every change detection run.

• The fourth phase is ngAfterContentInit() which is called after the component's content has been projecte...read more
Answered by AI
Add your answer
Q3. 3. what is the use of ORM Tool
Ans. 
ORM tool is used to map object-oriented programming language to a relational database management system.
• ORM tool helps in reducing the amount of code required to interact with the database.

• It provides an abstraction layer between the application and the database.

• ORM tool helps in managing the database schema and relationships between tables.

• It allows developers to work with objects instead of SQL statements.

• Examples of...read more
Answered by AI
Add your answer
Q4. 4. What is form control build.
Ans. 
Form control build refers to the process of creating and customizing form controls in web development.
• Form controls are elements like text boxes, radio buttons, and dropdown menus that allow users to input data on a website.

• Developers can use HTML, CSS, and JavaScript to build and style form controls to fit the needs of their website or application.

• Form control build also involves adding validation and error handling t
Answered by AI
Add your answer

The Coding was based on DSA questions and logical reasoning. In total there were 6 questions.

The assignment for PHP was given to complete in Framework or CMS. The choice is yours.

Q1. The tech team asked about some tech questions related to the Framework , sql and Database.
Add your answer
Q2. General questions how you try to enhance your skills, family, friends etc
Add your answer

Q1. They questioned me about backend-to-front-end connections.
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Q1. We discussed the fundamentals like my experience, resume, my future plans, and then the compensation package.
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