Tech Mahindra Project Engineer Interview Questions and Answers

Q1. How to enable data factory
Ans. 
To enable data factory, you need to create a data factory resource in Azure and configure it with linked services, datasets, and pipelines.
• Create a data factory resource in Azure portal

• Configure linked services to connect to data sources and destinations

• Define datasets to represent the data you want to process

• Create pipelines to orchestrate the movement and transformation of data

• Monitor and manage the data factory usin
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Q2. How to disable data factory
Ans. 
To disable data factory, you can stop or delete the data factory resources.
• Stop or delete the data factory pipelines and triggers

• Deallocate or delete the data factory linked services

• Disable or delete the data factory datasets and data flows
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Q1. Salary discussand discussion
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Q2. How much your expecting
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Q1. Explain OOPs concept in JAVA
Ans. 
OOPs concept in JAVA refers to Object-Oriented Programming principles like encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (object).

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Polymorphism: Ability of a method to do different things based on the object it is acting upon.

• Abstraction: Hidin...read more
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Q2. Explain Memory management in JAVA
Ans. 
Memory management in JAVA involves allocation, usage, and deallocation of memory for objects and variables.
• Java uses automatic memory management through garbage collection

• Memory is allocated on the heap for objects and on the stack for local variables

• Java Virtual Machine (JVM) manages memory allocation and deallocation

• Memory leaks can occur if objects are not properly dereferenced
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Q3. Explain Reflection in JAVA
Ans. 
Reflection in Java allows programs to inspect or modify their own structure at runtime.
• Reflection allows access to class information, fields, methods, and constructors at runtime.

• It is commonly used in frameworks like Spring and Hibernate for dependency injection and ORM.

• Example: Using reflection to dynamically load classes or invoke methods based on user input.
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Q1. What is the purpose of the test.startTest() and test.stopTest() methods in programming?
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Q1. For 6 years java experienced. Basic oops concepts with examples, exception handling, collections concepts
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Good and tricky questions

Q1. Explain oops concepts in java with real time examples?
Ans. 
OOPs concepts in Java are fundamental principles of object-oriented programming, including inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class. Example: Car class inheriting from Vehicle class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: Using private variables and public methods in ...read more
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Q2. What java is platform indepenedent?
Ans. 
Java is platform independent because of its 'write once, run anywhere' principle.
• Java programs are compiled into bytecode which can run on any Java Virtual Machine (JVM) regardless of the underlying platform.

• This allows Java programs to be executed on different operating systems without any modifications.

• Examples of platform independent Java applications include web applications, mobile apps, and enterprise software.
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Q3. Difference between abtract and interface key words?
Ans. 
Abstract classes can have both abstract and non-abstract methods, while interfaces can only have abstract methods.
• Abstract classes can have constructors, fields, and non-abstract methods, while interfaces cannot.

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

• Abstract classes are used to define common characteristics of subclasses, while interfaces are used to define contracts for c...read more
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Q1. Why do you think you fit for this role in this company?
Ans. 
I have a strong background in project management and engineering, with a proven track record of successfully leading and completing projects.
• Extensive experience in project management and engineering

• Proven track record of successfully leading and completing projects

• Strong problem-solving and analytical skills

• Excellent communication and teamwork abilities
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Q2. What is your dream role for any company?
Ans. 
My dream role for any company is to lead a team of innovative engineers in developing cutting-edge technology that positively impacts society.
• Leading a team of engineers in developing innovative solutions

• Working on projects that have a positive impact on society

• Collaborating with cross-functional teams to achieve goals

• Continuous learning and growth opportunities

• Contributing to the company's success and growth
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