Jio Application Developer Interview Questions and Answers

Q1. COBOL, DB2 - Restart logic, Cursor life cycle
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Q1. Technical discussion
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Q1. Process flow of my work
Ans. 
My work involves analyzing requirements, designing solutions, coding, testing, and deploying applications.
• Analyze requirements provided by stakeholders

• Design solutions based on requirements

• Code the application using appropriate programming languages

• Test the application for bugs and errors

• Deploy the application to production environment
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Q1. All concept need to clear
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Q2. Explain max to max answer to them
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Q1. General Hr questions like self intro preivious experience,
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Genral and english aptitude test

Q1. Operations round with managers questions based on apps
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Q2. How does apps work in our daily life
Ans. 
Apps have become an integral part of our daily lives, helping us with various tasks and activities.
• Apps help us stay organized by managing our schedules and to-do lists.

• They provide entertainment through games, music, and video streaming services.

• Apps facilitate communication through social media platforms and messaging apps.

• They assist in navigation with GPS and mapping apps.

• Apps enable online shopping and banking, ma...read more
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Q3. Category in apps we use in our day to day life
Ans. 
Categories in apps include social media, productivity, entertainment, health & fitness, education, finance, and communication.
• Social media apps (e.g. Facebook, Instagram, Twitter)

• Productivity apps (e.g. Microsoft Office, Trello, Evernote)

• Entertainment apps (e.g. Netflix, Spotify, YouTube)

• Health & fitness apps (e.g. Fitbit, MyFitnessPal, Headspace)

• Education apps (e.g. Duolingo, Khan Academy, Quizlet)

• Finance apps (e.g. M...read more
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Q4. What are sub categories in apps and how do they work?
Ans. 
Sub categories in apps are smaller categories within a main category that help organize and navigate content more efficiently.
• Sub categories help users easily find specific content within an app

• They can be used to group similar features or functions together

• Examples include sub categories like 'Settings', 'Notifications', 'Profile' within a main category like 'Account'
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Round duration - 60 Minutes
Round difficulty - Medium

This was a proctured online coding test where we had 2 questions to solve under 60 minutes.

Q1. 
Minimum Cost to Connect All Points Problem Statement
Given an array COORDINATES representing the integer coordinates of some points on a 2D plane, determine the minimum cost required to connect all points...read more
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Q2. 
Count Inversions Problem Statement
Given an integer array ARR of size N, your task is to find the total number of inversions that exist in the array.
An inversion is defined for a pair of integers in the...read more
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Round duration - 60 Minutes
Round difficulty - Medium

This round had 1 question of DSA followed by some questions from DBMS and Java. I was also made to execute a SQL query at the end.

Q1. 
Remove the Kth Node from the End of a Linked List
You are given a singly Linked List with 'N' nodes containing integer data and an integer 'K'. Your task is to delete the Kth node from the end of this Lin...read more
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Q2. Can you explain the different types of normalization forms in a DBMS?
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Q3. Can you write a SQL query that joins two tables A and B on the common attribute ID and selects records (ID_NAME) that have matching ID values in both tables?
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Q4. Why is Java considered platform independent, while the Java Virtual Machine (JVM) is platform dependent?
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Round duration - 60 Minutes
Round difficulty - Medium

This round had two preety straight forward questions related to DSA and then there were 2 puzzles.

Q1. 
Find All Occurrences in Matrix
You are provided with a matrix of characters, CHARACTER_MATRIX of size M x N, and a string WORD. Your goal is to locate and display all occurrences of the string within the ...read more
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Q2. 
Greatest Common Divisor Problem Statement
You are tasked with finding the greatest common divisor (GCD) of two given numbers 'X' and 'Y'. The GCD is defined as the largest integer that divides both of the...read more
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Round duration - 30 Minutes
Round difficulty - Easy

This was a typical HR round with some standard Behavioral questions.

Q1. Why do you want to be a part of Oracle?
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Code programming skills and latest technology knowledge

Q1. Even more coding and work application and more of management knowledge
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