Perfex Technologies Interview Questions, Process, and Tips

Exam done in Aptitude and Reasoning

Q1. Tell me about yourself
Ans. 
I am a software developer with 5 years of experience in web development and a passion for creating innovative solutions.
• 5 years of experience in web development

• Proficient in programming languages such as Java, JavaScript, and Python

• Strong problem-solving skills and ability to work in a team environment

• Passionate about creating innovative solutions and staying up-to-date with industry trends
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Q2. Skills you have learned
Ans. 
I have learned various programming languages, frameworks, and tools to develop software applications.
• Proficient in programming languages such as Java, Python, and JavaScript

• Experience with frameworks like Spring, Django, and React

• Familiarity with tools such as Git, Docker, and Jenkins
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Q3. Any Experience or Internships
Ans. 
Yes, I have completed a 6-month internship at XYZ company where I worked on developing a web application.
• Completed a 6-month internship at XYZ company

• Worked on developing a web application

• Gained hands-on experience in software development
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Q4. Any Projects done
Ans. 
Developed a web application for tracking personal expenses and generating reports.
• Used HTML, CSS, and JavaScript for front-end development

• Implemented backend using Node.js and MongoDB for database management

• Incorporated chart.js library for visualizing expense data
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Q5. Weakness and Strengths
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Q1. OOPs Principles
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Q2. Technologies you learned
Ans. 
I have learned technologies such as Java, Python, SQL, HTML, CSS, JavaScript, and Git.
• Java

• Python

• SQL

• HTML

• CSS

• JavaScript

• Git
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Q3. Projects you have done and concepts that have been implemented in the project. Any problems felt while programming
Ans. 
Developed a web application for tracking personal expenses using React and Node.js
• Implemented user authentication using JWT tokens

• Utilized MongoDB for storing expense data

• Integrated chart.js for visualizing expense trends
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Q1. HOW DO YOU WORK UNDER PRESSURE ?
Ans. 
I work well under pressure by prioritizing tasks, staying organized, and maintaining a positive attitude.
• I prioritize tasks based on urgency and importance

• I stay organized by creating to-do lists and breaking down tasks into smaller steps

• I maintain a positive attitude by focusing on solutions rather than problems

• I communicate effectively with my team and ask for help when needed

• I take breaks when necessary to avoid bur
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Q2. WHAT'S YOUR GOAL ?
Ans. 
My goal is to continuously learn and grow both personally and professionally.
• To acquire new skills and knowledge through training and development programs

• To take on challenging projects that push me out of my comfort zone

• To seek feedback and constructive criticism to improve my performance

• To build strong relationships with colleagues and mentors for guidance and support

• To contribute to the success of the organization b
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Q3. ONBOARDING PROCESS?
Ans. 
Onboarding process is the process of integrating new employees into an organization.
• It includes orientation, training, and socialization.

• Effective onboarding can improve employee retention and productivity.

• Examples of onboarding activities include introducing new hires to company culture, providing job-specific training, and assigning a mentor or buddy.

• Onboarding should be a continuous process, not just a one-time even
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Q4. TARGET ORIENTED
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Q1. Tell me about yourself
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Q2. Programming Languages and Technologies you know
Ans. 
Proficient in Java, Python, JavaScript, and SQL. Familiar with HTML, CSS, and Git.
• Java

• Python

• JavaScript

• SQL

• HTML

• CSS

• Git
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Q3. Database you learnt
Ans. 
I have learnt SQL and NoSQL databases such as MySQL, PostgreSQL, MongoDB, and Redis.
• SQL databases include MySQL and PostgreSQL

• NoSQL databases include MongoDB and Redis

• Have experience with writing queries, creating tables, and optimizing database performance
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Q1. What is a data
Ans. 
Data is information that is stored and can be manipulated by a computer system.
• Data can be in the form of text, numbers, images, videos, etc.

• Data is typically organized into databases for easy retrieval and manipulation.

• Examples of data include customer information, sales figures, and website traffic statistics.
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Q2. OOP's principles and explain them
Ans. 
OOP principles are fundamental concepts in object-oriented programming that guide the design and implementation of software.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class). Example: class Car with properties like make, model, and methods like start(), stop().

• Inheritance: Allowing a class to inherit properties and behavior from another class. Example: class Truck inheriting f...read more
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Q3. Method Overloading vs Method Over riding
Ans. 
Method overloading is having multiple methods in the same class with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in the superclass.
• Method overloading is resolved at compile time based on the method signature.

• Method overriding is resolved at runtime based on the object type.

• Method overloading is used to provide different impleme...read more
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Q4. What is Microservices, MVC Pattern
Ans. 
Microservices are a software development technique where applications are composed of small, independent services. MVC Pattern is a design pattern used in software engineering for separating concerns in an application.
• Microservices involve breaking down a large application into smaller, independent services that communicate with each other through APIs.

• Each microservice is responsible for a specific function and can be...read more
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Q5. Heap Memory vs Stack Memory
Ans. 
Heap memory is used for dynamic memory allocation, while stack memory is used for static memory allocation.
• Heap memory is allocated at runtime and can be accessed globally.

• Stack memory is allocated at compile time and is limited in size.

• Examples of heap memory usage include dynamic arrays and objects created with 'new'.

• Examples of stack memory usage include local variables and function call stack.
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1. Create a Login Page.
2. After login register a employee (CURD operations).
3. Enable JWT for login and show the user name logged and Auto logout after 1min session.

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