Companhia Brasileira de Distribuicao Interview Questions and Answers

Q1. Explain useState for managing state, useEffect for handling side effects, useMemo for performance optimization, and useCallback for memoizing functions. Understand how these hooks enhance functional compon...read more
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Explanation of useState, useEffect, useMemo, and useCallback hooks in React functional components.
• useState is used to manage state in functional components

• useEffect is used for handling side effects like data fetching, subscriptions, etc.

• useMemo is used for performance optimization by memoizing expensive calculations

• useCallback is used for memoizing functions to prevent unnecessary re-renders

• These hooks enhance functio...read more
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Q2. Describe lifecycle methods in class components and their functional equivalents with hooks. Know how to handle component mounting, updating, and unmounting.
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Q3. Understand setting up a Redux store, connecting components, and managing actions and reducers. Be familiar with middleware like Redux Thunk or Redux Saga for handling asynchronous actions.
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Setting up Redux store, connecting components, managing actions and reducers, and using middleware like Redux Thunk or Redux Saga for handling asynchronous actions.
• Setting up a Redux store involves creating a store with createStore() function from Redux, combining reducers with combineReducers(), and applying middleware like Redux Thunk or Redux Saga.

• Connecting components to the Redux store can be done using the connec...read more
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Q4. How to add and manipulate elements in arrays using JavaScript (e.g., inserting "watermelon" in the middle)?
Ans. 
To add and manipulate elements in arrays using JavaScript, you can use array methods like splice() and slice().
• Use the splice() method to insert elements into an array at a specific index. For example, arr.splice(index, 0, 'watermelon') will insert 'watermelon' at the specified index without removing any elements.

• To manipulate elements in an array, you can use methods like splice() to remove elements or slice() to extr...read more
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Q5. Use and purpose of Math.floor() in JavaScript.
Ans. 
Math.floor() is a method in JavaScript that rounds a number down to the nearest integer.
• Math.floor() returns the largest integer less than or equal to a given number.

• It is commonly used to convert a floating-point number to an integer.

• Example: Math.floor(3.9) returns 3.
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Q6. Mocking components in Jest, including handling props and named exports
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Mocking components in Jest for testing with props and named exports
• Use jest.mock() to mock components and their exports

• For handling props, use jest.fn() to create mock functions and pass them as props to the component being tested

• For named exports, use jest.mock() with a second argument to specify the module's exports
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2 DSA questions and some MCQ on Java and Spring

Q1. Longest palindromic substring
Ans. 
A palindromic substring is a string that reads the same forwards and backwards.
• Use dynamic programming to find the longest palindromic substring.

• Start by considering each character as the center of a potential palindrome.

• Expand outwards from each center to check for palindromes of odd and even lengths.
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Q2. Remove duplicates in place from a 1D array
Ans. 
Remove duplicates from a 1D array of strings in place
• Iterate through the array and use a HashSet to keep track of unique elements

• Replace duplicates with null or an empty string to remove them in place
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Q1. Project discussion
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Q2. Search min element in a rotated sorted array with duplicate elements
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Search for the minimum element in a rotated sorted array with duplicate elements.
• Use binary search to find the minimum element in the rotated sorted array.

• Handle the case where duplicate elements are present by adjusting the search conditions.

• Consider cases where the array is not rotated or contains only one element.
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Q3. Ways of declaring singleton class
Ans. 
A singleton class is a class that can only have one instance created throughout the application.
• Declare a private static instance variable of the class

• Create a private constructor to prevent external instantiation

• Provide a public static method to access the instance
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Q1. Project discussion
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Q2. Behavioural questions
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Q1. My name is ranjan kamat
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Q2. My education is M. Com completed
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Q3. I have 2years experience
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Q4. My location inBadarpur
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Q5. My Father name is rajendra kamat
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Q6. I have knowledge tally genuse gst tds
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I have been working at essae for 3 years.

Q1. I want to learn something new.
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Q2. I would love to meet someone to learn something better and I can work.
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Q1. What does the HR interview process generally consist of in the first round?
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Q2. What were the details of the final interview round?
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Q1. One on one round
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Q2. Group discussion
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Q1. Note interview round
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Q1. Not interview in
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Note interview round

Q1. Why do you want to work at Target?
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Q2. Have you had a disagreement with another employee?
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We are discussing the daily sales targets and store achievements.

Q1. Ill be go one by one connect with the staff discussing the yesterday sale and stock requirements.
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Q2. Then we see the floor standeds and hygienic
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They gave you on his company application I'd and password you have to they asking 6 to 7 questions on video you have to gave answer any questions atleast 1-2 min and if you qualify in that test they will take 2 nd round with manager

Q1. Self introduction
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Q2. Asking why you changing the
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Q1. Self introduction
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Q2. Why you're changing job
Ans. 
Seeking new challenges and opportunities for growth in a different environment.
• Desire for new challenges and experiences

• Opportunity for personal and professional growth

• Seeking a better work-life balance

• Interest in exploring different aspects of the industry
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Reasoning, writing and communication

Q1. What is the job role of store manager in Max and how you start your day
Ans. 
The job role of a store manager at Max involves overseeing daily operations, managing staff, ensuring customer satisfaction, and driving sales.
• Opening the store and conducting a walk-through to ensure everything is in order

• Reviewing sales targets and performance metrics

• Assigning tasks to staff members and providing guidance as needed

• Handling customer complaints and resolving issues

• Managing inventory levels and placing ...read more
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Q2. How to drive sale
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To drive sales, focus on customer service, product knowledge, merchandising, promotions, and staff training.
• Provide excellent customer service to build loyalty and repeat business.

• Ensure staff have thorough product knowledge to assist customers effectively.

• Implement attractive merchandising displays to draw in customers.

• Run promotions and sales to incentivize purchases.

• Regularly train and motivate staff to maximize sal
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Q3. How you improvement VM in store
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Improving visual merchandising in store involves strategic placement of products and displays to enhance the overall shopping experience.
• Regularly update window displays to attract customers

• Ensure products are well-organized and easy to find

• Utilize signage and lighting effectively to highlight key products

• Train staff on maintaining visual standards

• Monitor customer feedback and adjust displays accordingly
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Q4. How you handle attrition
Ans. 
I handle attrition by focusing on employee engagement, career development, and creating a positive work environment.
• Regularly communicate with employees to understand their needs and concerns

• Provide opportunities for career growth and development

• Create a positive work culture through team-building activities and recognition programs

• Conduct exit interviews to gather feedback and identify areas for improvement
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