Reliance Retail Network Engineer Interview Questions and Answers

Q1. Do you have any Technical Knowledge?
Ans. I have Technical Knowledge about Server & Computer Troubleshooting.
Answered by Manoj Namdev
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Q2. Can you travel for Job
Ans. I can visit any part of India.
Answered by Manoj Namdev
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The coding test was on hackerearth with 2 coding questions and Java based output questions.

Q1. 3 DSA questions on DP, binary search
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Q1. Prepare for Java, SQL & Unix and if you are experienced, you should know what your roles and responsibilities are
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Q1. Need to have an in depth knowledge of SQL concepts
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Basic Java Program

Q1. Find longest substring
Ans. 
Find the longest substring in an array of strings.
• Iterate through each string and compare with all other strings to find common substrings.

• Use a hash table to keep track of the frequency of each substring.

• Return the substring with the highest frequency.
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Q1. Tell about yourself
Ans. 
I am a software engineer with 5 years of experience in developing web applications using Java, Spring Boot, and Angular.
• Graduated with a degree in Computer Science from XYZ University

• Worked at ABC Company as a full-stack developer

• Proficient in Java, Spring Boot, Angular, and SQL

• Developed a customer management system for XYZ client

• Passionate about learning new technologies and problem-solving
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Q2. What is sap security
Ans. 
SAP security refers to the measures taken to protect SAP systems and data from unauthorized access and misuse.
• SAP security involves setting up user roles and authorizations to control access to sensitive data

• It includes implementing encryption, authentication, and audit trails to ensure data integrity

• Regular security assessments and updates are necessary to protect against vulnerabilities

• Examples of SAP security tools ...read more
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Coding test based on DP and 25 mcqs

Q1. Explanation of the projects done
Ans. 
Developed a web application for tracking inventory and sales data
• Used React.js for front-end development

• Implemented RESTful APIs using Node.js and Express

• Utilized MongoDB for database management
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Q2. Css related questions
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Q1. LRU Cache implementation
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Q2. Diameter of the tree
Ans. 
The diameter of a tree is the longest path between two nodes in a tree.
• The diameter of a tree can be calculated by finding the longest path between two nodes in the tree.

• It is not necessarily the path between the root and a leaf node.

• The diameter of a tree can be calculated using Depth First Search (DFS) or Breadth First Search (BFS) algorithms.
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Q1. Write a for loop in cpp to print n natural numbers without using semicolon (;)
Ans. 
Use recursion to print n natural numbers in C++ without semicolon.
• Define a function to print natural numbers recursively.

• Call the function inside main function with n as argument.

• Base case: if n is less than 1, return.

• Print n and call the function with n-1 as argument.
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Q2. A complex SQL query.
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Questions will be on data structures.

Q1. System design of web apps
Ans. 
System design of web apps involves planning the architecture, components, and interactions of a web application.
• Understand the requirements and constraints of the web app

• Identify the key components such as frontend, backend, database, and APIs

• Design the architecture considering scalability, performance, security, and maintainability

• Choose appropriate technologies and frameworks for each component

• Consider factors like l...read more
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