OodlesTechnologies Associate Engineer Interview Questions and Answers

Q1. What was your job role in previous company.
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Q2. How many years of experience do you have.
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Q1. Can you brief about your technical skills.
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Q2. Tell me about yourself.
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15 Min for the aptitude test and 15 Min for verbal and Quantitative Aptitude

3 coding questions were asked. Level of Difficulty is from Easy-Medium. Someone with basic knowledge in computer programming and fundamentals can easily do it.

It was quite easy to crack total 50 question was there

Three coding question was there , two was easy to execute and the third one are little bit complex

Q1. They asked almost 15 question in 10 minutes most questions are from c, java and SQL
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Q2. Class, object, thread, loop, primary key, forign key, difference between empty and null
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Q3. Array, string, some topic on data structure
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Print a specific pattern using any programming language.

Q1. What is a class in Object-Oriented Programming (OOP)?
Ans. 
A class in OOP is a blueprint for creating objects, defining their properties and behaviors.
• Classes are templates for creating objects in OOP

• They define the properties (attributes) and behaviors (methods) of objects

• Objects are instances of classes, each with its own unique data

• Inheritance allows classes to inherit properties and behaviors from other classes

• Encapsulation ensures that the data is hidden and can only be a...read more
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Q2. What is the difference between an abstract class and an interface?
Ans. 
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have constructors, fields, and methods, while interface cannot have any implementation.

• A class can only extend one abstract class, but can implement multiple interfaces.

• Abstract classes are used to define common characteristics of subclasses, while interfaces are used to define contracts for...read more
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Q3. What is joining and creating an inner join query?
Ans. 
Joining is combining data from two or more tables based on a related column, while an inner join query retrieves only the matching records.
• Joining is used to combine data from multiple tables in a database.

• Inner join query retrieves only the records that have matching values in both tables.

• Syntax for inner join: SELECT columns FROM table1 INNER JOIN table2 ON table1.column = table2.column;

• Example: SELECT orders.order_i...read more
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There were 30 questions on the aptitude test, all of which were part of the total count.

I have three questions: two related to data structures and algorithms, and one concerning SQL.

Q1. Got two questions DSA medium and Easy one
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Q1. Basic question on dot net and sql server
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Q1. Bit twisted and elaborative discussion on various technical spheres.
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Verbal, non-verbal, English and Numerical Aptitude

Q1. OOPs implementation in project
Ans. 
Implemented OOPs concepts like inheritance, encapsulation, and polymorphism in project design.
• Used inheritance to create a base class with common attributes and methods shared by subclasses.

• Implemented encapsulation by restricting access to certain data and methods within classes.

• Utilized polymorphism to allow objects of different classes to be treated as objects of a common superclass.

• Example: Created a class hierarch...read more
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Q2. React hooks like useEffect, useState
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Q3. DBMS Normalization concept like 2NF
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