Cognizant Interview Questions, Process, and Tips

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Q1. Introduction of yourself and more
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Q2. Explain opps concept in java
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Q1. Qualification and experience
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Q2. About my previous organization
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Q1. Was on team leader
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Q1. React basic,event loop, Lazy Loading, Suspense, Javascript basics
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Q2. Create counter application
Ans. 
Counter application using Reactjs
• Create a React component for the counter

• Use state to keep track of the count

• Implement functions to increment and decrement the count

• Display the count on the screen
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Q1. Introduction and past experience
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Q1. Overall growth expectations
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Aptitude test includes number series, profit and loss, percentage, train problems

Q1. About SQL queries and database
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Q2. About object oriented programming, pointers, arrays, linked list
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Q1. Java Basics -- method overloading and overriding, diff b/w interface and abstract class, Abstraction in oops concept, star program, prime no. Or not program
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Q2. Selenium BDD framework structure
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Q3. How to convert JSON file into Java object
Ans. 
Use libraries like Jackson or Gson to convert JSON file into Java object
• Use libraries like Jackson or Gson for easy conversion

• Create a POJO class that represents the structure of JSON data

• Use ObjectMapper class in Jackson or Gson.fromJson() method to convert JSON file into Java object
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Q4. Different annotations use in Junit hooks
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Different annotations used in JUnit hooks
• Annotations like @Before, @After, @BeforeClass, @AfterClass are used in JUnit hooks

• These annotations help in setting up and tearing down test fixtures before and after test methods

• Example: @Before public void setUp() { // setup code }
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Q5. One scenario based on hooks
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Q6. Background keyword in BDD
Ans. 
Background keyword in BDD is used to define preconditions for a scenario
• Background keyword is used to define steps that are common to all scenarios in a feature file

• It helps in reducing duplication of steps in scenarios

• Background keyword is placed before the first scenario in a feature file
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Q7. Different types of exceptions while executing test cases
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Different types of exceptions encountered while executing test cases
• 1. Checked exceptions: Must be caught or declared in the method signature

• 2. Unchecked exceptions: Not required to be caught or declared

• 3. Runtime exceptions: Occur during runtime due to logical errors

• 4. Assertion errors: Failures in assertions made in the test cases

• 5. Timeout exceptions: Test case takes longer than expected to complete
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Q8. Syntax of Drag and Drop
Ans. 
Drag and Drop is a common interaction in web applications where a user can click and drag an element to a new location.
• Drag and Drop is implemented using HTML5's Drag and Drop API.

• The syntax involves setting the draggable attribute to true on the element you want to drag.

• You also need to define event handlers for dragstart, dragover, and drop events.

• Example:

  Drag me!
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Q9. Syntax for Pinch and zoom
Ans. 
Pinch and zoom syntax is used to zoom in and out on touch screen devices.
• Use two fingers to pinch inwards to zoom out

• Use two fingers to pinch outwards to zoom in

• For zooming, use the 'transform' property in CSS
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