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Red Hat Software Developer Interview Questions and Answers
Red Hat Software Developer Interview Experiences
1 interview found
Anonymous
I was interviewed in Feb 2021.
(1 Question)
Round duration - 90 minutes
Round difficulty - Medium
- Q1.
String Compression Problem Statement
Implement a program that performs basic string compression. When a character is consecutively repeated more than once, replace the consecutive duplicates with the coun...
- Ans. Frequency Calculation Approach
The steps are as follows:
- Keep two indices, both starting from the initial character. Let’s say, ‘STARTINDEX’ and ‘ENDINDEX’. These indices are going to tell the start and end of the substring where the characters are the same.
- Start moving the ‘ENDINDEX’ to every character till the character at ‘STARTINDEX’ is a match.
- Whenever there is a mismatch, we can calculate the frequency of the...
(1 Question)
Round duration - 90 minutes
Round difficulty - Easy
This was my first technical round. he asked me about all my projects and the technologies used. some questions were on c and c++. what is heap , stack, memory allocation methods. Basically they covered all the concepts of c from string to pointers. Then they gave me one coding question which was on arrays. Best part was interviewers were very friendly.
- Q1.
Jumping Numbers Problem Statement
Given a positive integer
N, your task is to find and display all jumping numbers that are less than or equal toN.A number is termed a jumping number if every adjacent ...
- Ans. Brute Force
- A brute force approach could be to iterate over all the integers from 0 to N.
- For each integer check if its adjacent digits differ by 1. If yes, then the number is a jumping number.
The steps are as follows:
- Iterate over the integers, 0 to ‘N’.
- For each integer, iterate over its digits.
- Check if the current digit and the previous digit differ by 1.
- If all the adjacent digits in the current integer diff...
Round duration - 75 minutes
Round difficulty - Hard
This round was completely on data structures . he asked me all the questions related to linked list like detect a loop, remove a loop and graphs like BFS and DFS algorithms and some on trees. even on Adjacency matrix and adjacency list.
Round duration - 60 minutes
Round difficulty - Medium
Interview Preparation Tips
Tip 1 : Practice coding daily
Tip 2 : Learn new concepts everyday
Tip 3 : Know all that standard coding questions
Tip 1 : Do not bluff on ur resume.
Tip 2 : Keep relevant projects.
Skills evaluated in this interview
Interview questions from similar companies
I applied via Company Website and was interviewed in Oct 2024. There were 3 interview rounds.
It was a coding round interview along with interviewer via Virtual mode. I was given 2 coding questions on HackerRank for the interview:
1. one was an easy problem on counting minimum replacements.
2. "pat is an ordinary kid who works hard to be a great runner...." this was a challenging problem (which I managed to solve).
3. I was asked some basic Python questions, as the role was for a Python Developer.
(5 Questions)
- Q1. LLD for Parking Lot
- Q2. Which database are you going to use for Parking lot and Why ?
- Ans.
I would use a relational database like MySQL for the Parking lot as it provides structured data storage and supports complex queries.
Relational databases like MySQL offer structured data storage for parking lot information
Supports complex queries for managing parking lot data efficiently
Ability to handle large amounts of data and transactions
Provides data integrity and security features
Can easily integrate with other s
- Q3. Questions related to OOPs
- Q4. Questions related to Multi Threading
- Q5. Questions related to Projects
(2 Questions)
- Q1. I hate this since i was informed that this round was a technical.
- Q2. Usual Mangerial questions, Project Related, etc
Interview Preparation Tips
preeti parmar
Selected
I applied via Campus Placement
Question related to operating system and computer network
(1 Question)
- Q1. Traverse all child nodes in tree
- Ans.
Traverse all child nodes in a tree data structure
Use depth-first or breadth-first traversal algorithms
Recursively visit each child node starting from the root node
Consider using a stack or queue data structure for traversal
Example: Traverse all nodes in a binary tree
(1 Question)
- Q1. Question related to cloud and oops
(1 Question)
- Q1. Question related to my background and how web site work
I applied via Walk-in and was interviewed in Nov 2024. There were 2 interview rounds.
1st round is aptitude and pesudocode
(2 Questions)
- Q1. Mostly python questions
- Q2. List questions and basic to mediumprogram
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Oct 2024. There were 3 interview rounds.
In first round 4 coding question like 1 dsa 2 database and one is api and question is very simple . coding round was conducted in hackerrank
(2 Questions)
- Q1. DSA QUESTION LIKE TREE AND GRAPH
- Q2. DP AND SORTING APPROACH
Again same but dsa question and oops concept in deep level
Interview Preparation Tips
I applied via campus placement at Maharaja Agrasen Institute of Technology, Delhi and was interviewed in Jul 2024. There were 3 interview rounds.
3 questions of dsa based on dp and trees
(3 Questions)
- Q1. Valid BST leetcode question
- Q2. Common puzzles found on gfg
- Q3. Questions on object oriented programming
Optimize delivery between warehouse to the person ordered.
Interview Preparation Tips
- trees
- puzzles
- DP
Skills evaluated in this interview
Selected
I applied via Recruitment Consulltant and was interviewed in Sep 2024. There were 2 interview rounds.
(1 Question)
- Q1. Rest Apis questions
(1 Question)
- Q1. Core java and OOPS and LLD
Interview Preparation Tips
Aswini Ramachandran
(2 Questions)
- Q1. Something based on hashet
- Q2. Same with this too
Basic questions were given..bar graphs,pie charts
(1 Question)
- Q1. What is Oops concept?
- Ans.
Oops concept stands for Object-Oriented Programming concepts which include principles like inheritance, encapsulation, polymorphism, and abstraction.
Oops concept is a programming paradigm that focuses on objects and classes.
It includes principles like inheritance, where a class can inherit properties and behaviors from another class.
Encapsulation is another principle where data is wrapped within a class and can only be...
(1 Question)
- Q1. Internal working of Hash Map
- Ans.
Hash Map is a data structure that stores key-value pairs and uses a hash function to map keys to their corresponding values.
Hash Map uses a hash function to determine the index of the key-value pair in the underlying array.
Collisions can occur when multiple keys hash to the same index, which can be resolved using techniques like chaining or open addressing.
Hash Map typically has a load factor threshold to determine whe...
Skills evaluated in this interview
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