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10+ Prolifics Corporation Interview Questions and Answers

Updated 4 Mar 2025

Q1. how to print greter number without using while loop.explain code while writing

Ans.

To print the greater number without using a while loop, compare two numbers and print the larger one.

  • Take two numbers as input

  • Compare the two numbers

  • Print the greater number

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Q2. Second highest salary of the employee in sql

Ans.

Use SQL query with ORDER BY and LIMIT to find the second highest salary of an employee.

  • Use ORDER BY clause to sort the salaries in descending order.

  • Use LIMIT 1,1 to skip the first highest salary and get the second highest salary.

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Q3. what is oops concepts

Ans.

Object-oriented programming concepts that focus on objects and classes for code organization and reusability.

  • Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

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

  • Polymorphism: Ability for objects of different classes to respond to the same message in different ways.

  • Abstraction: Hiding the complex implementation details and showing only the necessary f...read more

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Q4. factors of the number,

Ans.

Factors of a number are the numbers that can be multiplied together to get the original number.

  • Factors of a number are all the numbers that divide the number without leaving a remainder.

  • Every number has at least two factors: 1 and the number itself.

  • Example: Factors of 12 are 1, 2, 3, 4, 6, and 12.

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Q5. Find the maximum of two numbers without if else

Ans.

Use bitwise operations to find the maximum of two numbers

  • Use bitwise operations like XOR and AND to compare and find the maximum of two numbers

  • Example: int max = b ^ ((a ^ b) & -(a < b));

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Q6. What is API and why do we use it.

Ans.

API stands for Application Programming Interface. It is used to define the methods for communication between different software components.

  • API allows different software systems to communicate with each other

  • It defines the methods and protocols for data exchange

  • APIs can be used to access services or data from external sources

  • Examples include Google Maps API for location services and Twitter API for social media integration

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Q7. Explain about oops concept

Ans.

OOPs (Object-Oriented Programming) is a programming paradigm that uses objects to represent and manipulate data.

  • OOPs focuses on creating reusable code by organizing data and behavior into objects.

  • It follows the principles of encapsulation, inheritance, and polymorphism.

  • Encapsulation hides the internal details of an object and provides a public interface.

  • Inheritance allows the creation of new classes based on existing ones, inheriting their properties and behaviors.

  • Polymorphis...read more

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Q8. String reverse program

Ans.

A program to reverse an array of strings

  • Iterate through the array of strings

  • For each string, reverse the characters

  • Store the reversed strings in a new array

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Q9. Architectural patterns and prior experience in solutioning

Ans.

Architectural patterns guide the design of systems, ensuring scalability, maintainability, and performance based on prior experiences.

  • Microservices architecture allows for independent deployment and scaling of services, e.g., Netflix uses this for its streaming service.

  • Event-driven architecture enhances responsiveness and decouples components, as seen in systems like Amazon's order processing.

  • Layered architecture separates concerns, making it easier to manage, e.g., the tradi...read more

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Q10. radius of a circle

Ans.

The radius of a circle is the distance from the center of the circle to any point on its circumference.

  • The radius is half the diameter of the circle.

  • The formula to calculate the circumference of a circle is 2 * π * radius.

  • The formula to calculate the area of a circle is π * radius^2.

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Q11. What are the Parts of jwt

Ans.

Parts of JWT include header, payload, and signature.

  • Header: Contains metadata about the token such as the type and hashing algorithm.

  • Payload: Contains claims or information about the user.

  • Signature: Used to verify that the sender of the JWT is who it says it is and that the message has not been tampered with.

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Q12. Explain Security model in salesforce

Ans.

Salesforce security model ensures data protection through various features like profiles, roles, sharing rules, and permission sets.

  • Salesforce security model is based on the principle of least privilege, where users are only given access to the data they need to perform their job.

  • Profiles define what a user can do in Salesforce, such as read, create, edit, or delete records.

  • Roles determine the level of access a user has to records owned by other users.

  • Sharing rules can be use...read more

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