Cognizant Associate Interview Questions, Process, and Tips

Medium level test to attend

Q1. Pattern pyramid
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Q2. Programming lang
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Q1. Introduce yourself
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I am a dedicated and experienced professional with a background in marketing and sales.
• Over 5 years of experience in marketing and sales roles

• Strong communication and interpersonal skills

• Proven track record of exceeding sales targets

• Proficient in digital marketing strategies
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Q2. Project Skillset
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Q1. Js basics, React basics
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Q2. Closure, hoisting
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Q3. What is Virtual DOM
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Virtual DOM is a concept in React where a lightweight copy of the actual DOM is created to improve performance by minimizing actual DOM manipulations.
• Virtual DOM is a representation of the actual DOM in memory.

• When changes are made to the virtual DOM, React compares it with the actual DOM and only updates the necessary parts.

• This helps in improving performance by reducing the number of actual DOM manipulations.

• Example:...read more
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Q1. JS Code snippets
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Basic aptitude questions from beginners level

Simple coding programs in c or c++ or java

Q1. Internal working of concurrenthashmap
Ans. 
ConcurrentHashMap is a thread-safe implementation of Map interface in Java.
• It uses a hash table to store key-value pairs.

• It allows multiple threads to read and write concurrently.

• It uses a technique called lock striping to achieve concurrency.

• It provides better performance than Hashtable and synchronizedMap.

• It supports atomic operations like putIfAbsent() and replace().
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Q2. Find duplicate word from list of string
Ans. 
Find duplicate word from list of string
• Split the string into words

• Use a hash table to keep track of word occurrences

• Return the duplicate word(s)
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