eZee Technosys Senior Software Engineer Interview Questions and Answers

Q1. Use of model in laravel
Ans. 
Models in Laravel are used to interact with the database and represent data.
• Models in Laravel are used to perform database operations such as retrieving, inserting, updating, and deleting data.

• Models help in organizing and structuring the data in the application.

• Models in Laravel follow the MVC (Model-View-Controller) pattern.

• Example: Creating a User model in Laravel to interact with the users table in the database.
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Q2. SQL get highest salary for employee
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Q1. SQL joins and types of joins
Ans. 
SQL joins are used to combine rows from two or more tables based on a related column between them.
• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• INNER JOIN returns rows when there is at least one match in both tables.

• LEFT JOIN returns all rows from the left table and the matched rows from the right table.

• RIGHT JOIN returns all rows from the right table and the matched rows from the left table.

• F...read more
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Q2. What is self join and realted question
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Q1. Previous projects and contributions
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Q1. Why should we hire you Do you want to do Post graduation
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Q2. Why should we hire you Do you want to do Post graduation Do want to reallocate
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DSA , medium n easy leetcode question was there

Q1. Low level design
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Q2. DSA and computer fundamental
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Q1. Basic Php ,Oops
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Q1. Security questions
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DSA questions:
1. Replace array of 1s and 0s with 0s in all rows and cols
2. Kandane's algo question

Q1. What is db cluster
Ans. 
A db cluster is a group of databases that work together to provide high availability and scalability.
• Consists of multiple database instances working together

• Provides redundancy and fault tolerance

• Allows for load balancing and scaling

• Examples: Amazon Aurora, Google Cloud Spanner
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Q2. Java collections, filters vs interceptors
Ans. 
Filters and interceptors are used in Java collections to manipulate or control the flow of data.
• Filters are used to selectively include or exclude elements from a collection based on certain criteria.

• Interceptors are used to perform actions before or after certain operations on a collection.

• Examples: Java 8 Stream API filters, Servlet filters for HTTP requests, Hibernate interceptors for database operations.
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Polyfills,html,css basics,js intermediate level

Leetcode medium to hard

Q1. Rain water trapping
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Q2. Bricks and ladder
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