O2H Group Researcher Interview Questions and Answers

English, Quantitative Ability, Data Interpretation

Multiple guesstimates, questions on resume and work experience

Calculation and Logics

Q1. Programming and problem solving
Add your answer

Aptitude test with Quants, DI etc

Q1. Guesstimates and puzzles
Add your answer

Amcat test and logical and english are the main qn

Q1. Asked about project, resume
Add your answer
Q2. Database and how to connect database with the backend
Ans. 
Connecting a database with the backend involves establishing a connection, configuring the database settings, and using appropriate APIs or libraries.
• Establish a connection to the database using connection strings or configuration files

• Configure the database settings such as host, port, username, and password

• Use appropriate APIs or libraries to interact with the database, such as JDBC for Java or SQLAlchemy for Python

• E...read more
Answered by AI
Add your answer
Q3. Sql qn and join
Add your answer
Q4. Inner join and type of join
Ans. 
An inner join is a type of join that returns only the matching records from both tables involved in the join.
• Inner join combines rows from two tables based on a related column between them.

• It returns only the records that have matching values in both tables.

• The result set of an inner join includes only the columns that are common to both tables.

• Inner join is commonly used to retrieve data that exists in both tables.

• Exa...read more
Answered by AI
Add your answer

Q1. They will ask simple qn
Add your answer

Q1. Good experience
Add your answer
Q2. Case study based interview
Add your answer