EPAM Systems
10+ Capricorn Food Products Interview Questions and Answers
Q1. How can we adapt the frontend to different view of devices?
Responsive design using media queries and flexible layouts to adapt frontend to different devices.
Use media queries in CSS to apply different styles based on screen size
Utilize responsive frameworks like Bootstrap or Foundation for pre-built responsive components
Implement flexible layouts using percentage-based widths and max-width properties
Optimize images for different screen resolutions using srcset and sizes attributes
Test the frontend on various devices and screen sizes ...read more
Q2. What are the advantages of using Typescript? mention your favorite features
Typescript offers advantages like static typing, improved code quality, better tooling support, and easier refactoring.
Static typing helps catch errors at compile time
Improved code quality due to type checking
Better tooling support with features like code navigation and auto-completion
Easier refactoring with the help of type annotations
Faster development with enhanced IDE support
Q3. Can you mention some popular hacker attacks?(xxs, sql injection, etc)
Some popular hacker attacks include XSS (Cross-Site Scripting) and SQL Injection.
XSS (Cross-Site Scripting) - attackers inject malicious scripts into web pages viewed by other users
SQL Injection - attackers insert malicious SQL code into input fields to manipulate database queries
Q4. Can you describe some Architectural Patterns ?
Architectural patterns are reusable solutions to common problems in software architecture.
MVC (Model-View-Controller) - Separates an application into three main components: the model, the view, and the controller.
MVVM (Model-View-ViewModel) - Similar to MVC but with a ViewModel layer that manages the state and behavior of the view.
Flux - Unidirectional data flow pattern commonly used with React applications.
Microservices - Architectural style that structures an application as...read more
Q5. Do you configured some part of a CI/CD pipeline?
Yes, I have configured various parts of CI/CD pipelines.
I have set up automated builds using tools like Jenkins or GitLab CI.
I have configured automated testing processes within the pipeline.
I have integrated deployment scripts to automatically deploy code to different environments.
I have set up notifications for build status and deployment success/failure.
I have worked on optimizing and improving the efficiency of CI/CD pipelines.
Q6. What is a closure in Javascript?
A closure is a function that has access to its own scope, as well as the outer scope in which it was defined.
A closure allows a function to access variables from an outer function even after the outer function has finished executing.
Closures are commonly used to create private variables and functions in JavaScript.
Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { console.log(outerVar); }; }
Q7. Can you describe some Design Patterns ?
Design patterns are reusable solutions to common problems in software design.
Creational Patterns: Singleton, Factory, Builder
Structural Patterns: Adapter, Decorator, Facade
Behavioral Patterns: Observer, Strategy, Command
Q8. Describe the benefits of using SSR (server side rendering)
SSR improves SEO, performance, and initial load time of web applications.
Improves SEO by serving fully rendered HTML to search engine crawlers
Enhances performance by reducing time to first paint and time to interactive
Faster initial load time for users, especially on slower network connections
Better support for social media crawlers and web scrapers
Enables content to be visible to users even if JavaScript is disabled
Q9. Resolve a Leetcode problem -Merge two intervals.
Merge two intervals by sorting and iterating through the intervals.
Sort the intervals based on the start value.
Iterate through the intervals and merge overlapping intervals.
Return the merged intervals.
Q10. Difference between defer and async
defer loads the script after the document has been parsed, async loads the script asynchronously without blocking the document parsing
defer attribute loads the script after the document has been parsed
async attribute loads the script asynchronously without blocking the document parsing
defer scripts are executed in the order they appear in the document, async scripts are executed as soon as they are loaded
defer is better for scripts that rely on the DOM being fully loaded, asy...read more
Q11. Pseudo class vs Pseudo element
Pseudo class selects elements based on their state, while pseudo element selects parts of an element.
Pseudo class is used to style elements based on their state, such as :hover, :active, :focus.
Pseudo element is used to style specific parts of an element, such as ::before, ::after, ::first-line.
Pseudo class starts with a single colon (:), while pseudo element starts with a double colon (::).
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