Zefo Interview Questions and Answers

Q1. Why would you like to join us
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Q2. Why would u like to join us
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Q1. Easy opps and java
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Q1. Puzzles , above myself and sql
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Core Java, Spring boot, Hibernate, MySQL

Q1. Technical Questions
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Q2. Logic Problems
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Q1. Logic Problems solving (face to face interview)
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Q2. Personality check
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A Google Form-based Aptitude Test with Basic Questions

Q1. Asked Basic Time Complexity and DSA Questions like Time Complexity Of quick sort use of stack Data Structure etc
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It was the final round asked to do a medium-level coding Question to convert a number such as 244 to word i.e Two Hundred and Forty four

Q1. Difference between Drop and Truncate ?
Ans. 
Drop deletes the table structure and data, while truncate only deletes the data.
• Drop is a DDL (Data Definition Language) command, while truncate is a DML (Data Manipulation Language) command.

• Drop removes the table from the database, while truncate only removes the rows from the table.

• Drop is slower and requires more permissions than truncate.

• Example: DROP TABLE table_name; TRUNCATE TABLE table_name;
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Q2. To write SQL queries
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Q1. Why you are switching to non-core?
Ans. 
I am switching to non-core because I want to explore new opportunities and challenges outside of my current field.
• Seeking new challenges and opportunities

• Exploring different industries and roles

• Developing new skills and gaining diverse experience
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Q2. What are your expected salary?
Ans. 
I am looking for a competitive salary that reflects my skills and experience in the data analysis field.
• Research the average salary for Data Analysts in your area to have a realistic expectation

• Consider your level of experience, education, and any specialized skills you bring to the table

• Be prepared to negotiate based on the company's budget and benefits package
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It was good , 2 questions are there to code.

Q1. Cs fundamental, Projects, coding.
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Q2. A simple coding question of string using map
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Q1. What is React router. what does it do.
Ans. 
React Router is a popular routing library for React applications.
• React Router is used for handling navigation in React applications.

• It allows defining multiple routes in the application and rendering different components based on the URL.

• React Router provides components like BrowserRouter, Route, Switch, and Link for routing.

• Example: will render the About component when the URL
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Q2. Questions based on react basics.
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