Waters Corporation Product Specialist Interview Questions and Answers for Experienced

Q1. Anagram of two strings in java
Ans. 
Java program to check if two strings are anagrams
• Create a function that takes two strings as input

• Convert both strings to character arrays and sort them

• Check if the sorted arrays are equal to determine if they are anagrams
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Q2. Insert and select query in MySQL
Ans. 
Insert and select data in MySQL using SQL queries
• Use INSERT INTO table_name (column1, column2, ...) VALUES (value1, value2, ...); to insert data

• Use SELECT * FROM table_name; to select all data from a table

• Use SELECT column1, column2 FROM table_name WHERE condition; to select specific data based on a condition
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Q3. Get and Post APIs in rest
Ans. 
GET and POST are HTTP methods used in REST APIs for retrieving and sending data.
• GET method is used to retrieve data from a server

• POST method is used to send data to a server

• GET requests are idempotent, while POST requests are not

• GET requests should only be used for retrieving data, not for modifying data

• Example: GET request to retrieve a list of users - GET /users

• Example: POST request to create a new user - POST /users
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Q1. Explain yourself
Ans. 
I am a dedicated and experienced consultant with a strong background in problem-solving and client management.
• Over 5 years of experience in consulting roles

• Skilled in analyzing data and providing strategic recommendations

• Excellent communication and interpersonal skills

• Proven track record of successfully managing client relationships

• Strong ability to work under pressure and meet deadlines
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General apptitude test basis domain

GD on role applied/ current affairs etc.

Q1. TR on applied position
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Q1. Keep yourself updated with your domain knowledge
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Q1. Singleton in java code. multithreading, spring boot questions.
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Q2. SQL queries for finding highest salary
Ans. 
SQL queries to find highest salary
• Use the MAX() function to find the highest salary

• Combine with the SELECT statement to retrieve the corresponding employee details

• Use the ORDER BY clause to sort the results in descending order

• Use the LIMIT clause to limit the number of results returned
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Calculation and Logics

Q1. Programming and problem solving
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Q1. General HR questions
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Quantitative assessment of 2 markets.

Q1. Explanation of the assignment
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Q1. Discussion on the quantitative abilities
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