AmbitionBox
Interview Questions
- Reviews
- Salaries
- Interview Questions
- About Company
- Benefits
- Jobs
- Office Photos
- Community
Add office photos
i
Cognizant
Compare
Proud winner of ABECA 2024 - AmbitionBox Employee Choice Awards
Filter interviews by
Cognizant UI Developer Interview Questions and Answers
Cognizant UI Developer Interview Experiences
3 interviews found
Anonymous
I applied via Approached by Company and was interviewed before Nov 2023. There was 1 interview round.
(2 Questions)
- Q1. WHat is event loop?
- Ans.
Event loop is a mechanism in JavaScript that allows for asynchronous operations to be executed in a non-blocking way.
Event loop is responsible for handling asynchronous operations in JavaScript.
It allows for non-blocking execution of code by continuously checking the call stack and the task queue.
When the call stack is empty, the event loop moves tasks from the task queue to the call stack for execution.
Example: setTim...
- Q2. What is DOM ?
- Ans.
DOM stands for Document Object Model, a programming interface for web documents.
DOM is a tree-like structure that represents the elements of a web page.
It allows developers to manipulate the content, structure, and style of a web page using scripting languages like JavaScript.
DOM provides methods and properties to interact with HTML elements, such as selecting, adding, removing, or modifying them.
Example: document.getE...
Skills evaluated in this interview
Interview Questionnaire
1 Question
- Q1. Questions on routing concepts, advanced html,css and javascript
Interview Questionnaire
2 Questions
- Q1. I joined cognizant as a fresher, so jat be confident about one programing language and try to solve basic fundamental programming and oops concept along with sql knowledge
- Q2. I was asked for the Armstrong that l did and about hierarchy and structure
Interview Preparation Tips
What people are saying about Cognizant
Interview questions from similar companies
I appeared for an interview in Aug 2017.
Interview Preparation Tips
Experience: All questions related to HTML, CSS, Bootstrap, Javascript, JQuery and Angular jS
Duration: 30 minutes
Total Questions: 20
Round: Technical Interview
Experience: They ask all Technical Questions which are based on our skills mentioned in CV.
I applied via Walk-in and was interviewed in Mar 2022. There were 2 interview rounds.
(2 Questions)
- Q1. For loop fine the array value
- Ans.
Using a for loop to find a specific value in an array of strings.
Use a for loop to iterate through the array
Check each element to see if it matches the desired value
Return the index of the matching element or -1 if not found
- Q2. For loop fine the array valu
- Ans.
To find array values using for loop
Declare a variable to store the sum of array values
Use a for loop to iterate through the array
Access each element using array[index] syntax
Add the element value to the sum variable
Return the sum variable
Interview Preparation Tips
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Nov 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Related JavaSript and react
Interview Preparation Tips
Interview Questionnaire
4 Questions
- Q1. How to handle performance issues in angular
- Ans.
Performance issues in Angular can be handled by optimizing code, reducing HTTP requests, and using lazy loading.
Optimize code by using trackBy in ngFor loops
Reduce HTTP requests by using caching and pagination
Use lazy loading to load only necessary components
Use AOT compilation to reduce load time
Avoid using ngIf with heavy computations
Use ChangeDetectionStrategy.OnPush to reduce change detection cycles
- Q2. How to create and use custom directive
- Ans.
Custom directives in AngularJS allow you to create reusable components.
Create a new directive using the directive() method
Specify the directive's behavior using the link() method
Use the directive in HTML using its name as an attribute
Pass data to the directive using attributes
Example:
- Q3. How angular works , architecture
- Ans.
Angular is a JavaScript framework for building web applications with a modular architecture.
Angular uses a component-based architecture to build reusable UI components
It uses a declarative approach to define UI elements and their behavior
Angular provides a powerful set of tools for data binding, dependency injection, and routing
It follows the MVC (Model-View-Controller) pattern to separate concerns and improve maintain...
- Q4. ES6 features
Skills evaluated in this interview
Selected
I applied via Naukri.com and was interviewed in Jan 2023. There were 2 interview rounds.
(2 Questions)
- Q1. What is lazy loading? What is routing and how to implement it? How to implement observables? What is promise? How to achieve asynchronous call in javascript?
- Ans.
Lazy loading is a technique to defer loading of non-critical resources until they are needed.
Lazy loading improves page load time and performance.
It is commonly used for images, videos, and other media files.
Lazy loading can be implemented using JavaScript libraries like LazyLoad or by using the Intersection Observer API.
Lazy loading can also be implemented in frameworks like Angular and React.
- Q2. What is HTML5? What is css3? How to achieve media queries?
- Ans.
HTML5 is the latest version of the HTML standard, CSS3 is the latest version of the CSS standard, and media queries are used in CSS to apply different styles based on device characteristics.
HTML5 is the fifth and latest version of the HTML standard used for structuring content on the web.
CSS3 is the latest version of the CSS standard used for styling web pages.
Media queries in CSS allow for responsive design by applyin...
Interview Preparation Tips
Have proper revision.
Be ready for proper explanation on your current role and responsibilities.
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Aug 2021. There were 3 interview rounds.
(4 Questions)
- Q1. About all lifecycle,hooks, virtual Dom questions on react js
- Q2. Explain about Jwt and related token based questions.
- Q3. Redux work flow kind of questions.
- Q4. Java class , interface, abstraction kind of questions.
JavaScript coding questions using map, filter, reduce.
React hooks coding example s.
(3 Questions)
- Q1. What were ur leaning in ur last project?
- Q2. How was ur role and responsibilities. Questions about development process and testing methods.
- Q3. Are u willing to learn new skills?
Interview Preparation Tips
(1 Question)
- Q1. Angular core concepts and Js questions
Cognizant Interview FAQs
Tell us how to improve this page.
Cognizant Interviews By Designations
- Cognizant Programmer Analyst Interview Questions
- Cognizant Programmer Analyst Trainee Interview Questions
- Cognizant Associate Interview Questions
- Cognizant Senior Associate Interview Questions
- Cognizant Processing Executive Interview Questions
- Cognizant Software Engineer Interview Questions
- Cognizant Senior Processing Executive Interview Questions
- Cognizant Software Developer Interview Questions
- Show more
Interview Questions for Popular Designations
- UI UX Developer Interview Questions
- Front end Developer Interview Questions
- Web Developer Interview Questions
- Backend Developer Interview Questions
- Software Developer Intern Interview Questions
- Senior UI Developer Interview Questions
- Junior Software Developer Interview Questions
- Full Stack Software Developer Interview Questions
- Show more
Cognizant UI Developer Interview Process
based on 3 interviews
Interview experience
UI Developer Interview Questions from Similar Companies
Fast track your campus placements
Cognizant UI Developer Reviews and Ratings
based on 22 reviews
Rating in categories
|
Associate
72.1k
salaries
|  ₹5.1 L/yr - ₹16 L/yr |
|
Programmer Analyst
55.5k
salaries
| ₹2.4 L/yr - ₹9.4 L/yr |
|
Senior Associate
49.3k
salaries
| ₹9 L/yr - ₹28 L/yr |
|
Senior Processing Executive
29k
salaries
| ₹1.8 L/yr - ₹9 L/yr |
|
Technical Lead
17.6k
salaries
| ₹5.9 L/yr - ₹25 L/yr |
TCS
Infosys
Wipro
Accenture
- Home >
- Interviews >
- Cognizant Interview Questions >
- Cognizant UI Developer Interview Questions
