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I applied via Job Portal and was interviewed in Jun 2021. There were 5 interview rounds.
Oops concepts are fundamental to object-oriented programming. They help in creating modular and reusable code.
Encapsulation - hiding implementation details of an object from the outside world
Inheritance - creating new classes from existing ones, inheriting their properties and methods
Polymorphism - ability of objects to take on many forms, depending on the context
Abstraction - focusing on essential features of an objec
Multiple inheritance is not allowed in Java to avoid the diamond problem.
Java supports multiple interface inheritance to achieve the same functionality.
Diamond problem occurs when a class inherits from two classes with a common method.
Java prioritizes single inheritance to maintain simplicity and avoid ambiguity.
Arrays are fixed in size while ArrayLists can dynamically grow and shrink.
Arrays are of fixed size while ArrayLists can be resized dynamically.
Arrays can hold primitive data types and objects while ArrayLists can only hold objects.
Arrays are faster for accessing elements while ArrayLists are faster for adding and removing elements.
Arrays use square brackets [] to declare while ArrayLists use angle brackets <>.
Example: ...
Java collections are classes and interfaces that provide a way to store and manipulate groups of objects.
Java collections include List, Set, Map, Queue, and their respective implementations
They provide methods for adding, removing, and accessing elements
Examples include ArrayList, HashSet, TreeMap, and PriorityQueue
Time theta is a measure of the worst-case time complexity of an algorithm.
It is used to analyze the performance of algorithms.
It represents the maximum amount of time an algorithm takes to complete.
It is denoted by the symbol Θ(n).
Bubble sorting is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.
Bubble sort is a comparison-based algorithm
It works by comparing each pair of adjacent elements and swapping them if they are in the wrong order
The algorithm repeats this process until no more swaps are needed
It has a worst-case and average-case complexity of O(n^...
Code to generate a random number between 15-25
Use Math.random() to generate a random number between 0-1
Multiply the result with the range (25-15) and add the minimum value (15)
Use Math.floor() to round down the result to an integer
I was interviewed in Feb 2025.
Passion for developing others and creating impactful training programs.
Passion for helping others succeed and reach their full potential
Enjoy designing and implementing engaging training programs
Belief in the power of continuous learning and development
Previous experience in mentoring and coaching individuals to achieve their goals
I was interviewed in Jan 2025.
Providing work freedom to employees can lead to increased motivation and productivity.
Encourage open communication and collaboration
Allow employees to make decisions and take ownership of their work
Provide opportunities for professional development and growth
Set clear expectations and goals
Recognize and reward employees for their contributions
What people are saying about Jio
Return Test given at office
Jio interview questions for popular designations
I was interviewed in Jan 2025.
I am a dedicated and experienced FTTX and JC Construction Engineer with a strong background in project management and network infrastructure.
Over 5 years of experience in FTTX and JC construction projects
Proficient in project management and network infrastructure design
Skilled in coordinating with cross-functional teams and stakeholders
Certified in relevant industry standards and regulations
Strong problem-solving and a
I have over 5 years of experience in FTTX and JC construction engineering, working on various projects for telecommunications companies.
Managed the design and implementation of fiber optic networks for FTTX projects
Collaborated with cross-functional teams to ensure project deadlines were met
Performed site surveys and inspections to assess construction requirements
Utilized AutoCAD and other software for design and docum
I will ensure efficient and timely completion of the project while maintaining high quality standards.
Implementing best practices to optimize project timelines
Ensuring adherence to quality control measures
Regularly monitoring progress and addressing any issues promptly
Collaborating effectively with team members and stakeholders
Providing innovative solutions to challenges
Get interview-ready with Top Jio Interview Questions
In general aptitude tests measure ones competence in logical reasoing numerical values ability
I was interviewed in Jan 2025.
I was interviewed in Feb 2025.
About company products
I applied via Naukri.com and was interviewed in Dec 2024. There were 3 interview rounds.
1. Know Your Audience: Understand their expectations and tailor your speech accordingly.
2. Be Confident: Maintain good posture, make eye contact, and speak clearly.
3. Structure Your Talk: Start with an engaging introduction, deliver a clear message, and end with a strong conclusion.
4. Practice: Rehearse to improve your flow and timing.
1. Core Topics: Arrays, strings, recursion, and algorithms (sorting, searching).
2. Problem-Solving: Practice coding on LeetCode or HackerRank.
3. Efficiency: Optimize for time and space complexity.
4. Languages: Be proficient in one (like Python, Java, or C++).
5. Debugging: Test for edge cases and fix errors quickly
1. Core Topics: Arrays, strings, recursion, and algorithms (sorting, searching).
2. Problem-Solving: Practice coding on LeetCode or HackerRank.
3. Efficiency: Optimize for time and space complexity.
4. Languages: Be proficient in one (like Python, Java, or C++).
5. Debugging: Test for edge cases and fix errors quickly
The duration of Jio interview process can vary, but typically it takes about less than 2 weeks to complete.
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