Rakuten Symphony Technical Lead Interview Questions and Answers

Q1. Team handling or distributor secondary
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Simple aptitude test

Window slider on a stack/queue

General aptitude questions on Cocubes Platform of 60 minutes

Q1. DSA question on strings and linked list
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Q2. Projects and Resume Discussion
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Q3. Puzzle (Two bulbs)
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Q4. OOP concepts - pillars of OOP
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The pillars of OOP are encapsulation, inheritance, and polymorphism.
• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Inheritance: Allowing a new class to inherit properties and behavior from an existing class.

• Polymorphism: The ability for objects of different classes to respond to the same message in different ways.
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Q1. Techno-Managerial Round (Discussion on Projects and Resume)
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Q2. Details of previous internships and about the offered role
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Q1. General HR questions about introduction and compensation discussion
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Q1. Coin change problem and loop in linked list
Ans. 
Coin change problem involves finding the minimum number of coins required to make a given amount of change. Loop in linked list is a traversal technique.
• Coin change problem can be solved using dynamic programming approach

• Loop in linked list can be implemented using a while loop or a for loop

• Coin change problem can be extended to include finding the actual coins used to make the change

• Loop in linked list can be used to ...read more
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Q1. Valid parenthesis and min stack problem
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Valid parenthesis and min stack problem
• Valid Parenthesis problem involves checking if a given string of parentheses is valid or not

• Min Stack problem involves designing a stack that supports push, pop, top, and retrieving the minimum element in constant time

• Both problems can be solved using stack data structure

• Valid Parenthesis problem can be solved by pushing opening brackets onto the stack and popping them when a clos...read more
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Q1. Show your confidence about tech skills.
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Q1. Salary discussion and Normal HR questions
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Basi aptitude and coding mcq

Q1. What is hashmap
Ans. 
HashMap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
• HashMap is part of the Java Collections framework.

• It uses hashing to store and retrieve elements efficiently.

• Keys in a HashMap must be unique, but values can be duplicated.

• Example: HashMap<String, Integer> map = new HashMap<>();
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Fibonacci series coding q

Q1. Sql basics ,oops concepts
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Q2. Projects and other stuff
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Basic Servicenow questions.
Client side server side best practices.

Basic serivicenow knowledge check.

Hands on PDI. Or on any instance.
Fixing the existing code.
Detailed discussion on technical experience

Q1. Techno managerial.
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Q2. Why telstra and preferred location
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2 Coding Questions. Easy- medium level questions.

Q1. 1. Program to find a perfect Number 2. Sql query on joins
Ans. 
Program to find a perfect number and SQL query on joins.
• A perfect number is a positive integer that is equal to the sum of its proper divisors.

• To find a perfect number, iterate through all numbers and check if the sum of its divisors is equal to the number itself.

• SQL joins are used to combine data from two or more tables based on a related column.

• Common types of joins include inner join, left join, right join, and full
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