Cognizant Senior Front end Developer Interview Questions and Answers

Q1. How are you doing?
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Q2. What do you do in your life?
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Q1. No problem with this
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Q2. The only way you could be
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Q1. General intro to the hr person
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Q1. JS related questions
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Q1. JS related questions
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Q1. JS related questions
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Q1. What is Hositing
Ans. 
Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their containing scope during the compilation phase.
• Variable declarations are hoisted but not their initializations

• Function declarations are fully hoisted

• Hoisting can lead to unexpected behavior if not understood properly
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Q2. What is closure
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Closure is the combination of a function bundled together with references to its surrounding state.
• Closure allows a function to access variables from its outer scope even after the outer function has finished executing.

• It is created whenever a function is defined within another function.

• Closure helps in maintaining the state of a function and allows for data encapsulation.
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They asked JS basics and Promises, hoisting

Just asked about my work culture, as I worked in startup and product based company, they except me work in Agile and how u will adopt to MNC / service based company culture

Q1. Basic components communication
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Q2. Forms based questions
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First round is online assessment. Where we have multiple choice questions related to angular, css. Html, javascript

Q1. AOT. JIT compilers, Pipes, Services, Singleton component
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Q2. Have you developed website for physically challenged ppl, accessibility
Ans. 
Yes, I have experience developing websites for physically challenged individuals with a focus on accessibility.
• Implemented keyboard navigation for users with mobility impairments

• Utilized ARIA roles and attributes to improve screen reader compatibility

• Ensured color contrast and text size met WCAG standards

• Tested websites with assistive technologies like screen readers and voice recognition software
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Q1. Interviewer asked about depth in React Js and JavaScript. JavaScript questions - Hoisting, implementation of closure, difference between call, bind & apply. Logic implementation of suggestions list in sea...read more
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Q1. He asked about both technical and non technical related questions. Previous organisation works. What i have faced difficult y in previous organisation. And some scenario based questions.
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Q1. Output questions on JavaScript.(Array, hoisting, event)
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Q2. Questions on React and Redux
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