Rakuten Interview Questions, Process, and Tips

Linked list and string related

Q1. Why do you want to join
Ans. 
I am passionate about testing and quality assurance, and I believe joining your team will allow me to further develop my skills and contribute to innovative projects.
• Passionate about testing and quality assurance

• Desire to develop skills and contribute to innovative projects

• Belief that joining the team will be a valuable opportunity for growth
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Q2. How fast can you join
Ans. 
I can join within 2 weeks, depending on the notice period at my current job.
• I can start within 2 weeks, pending any notice period at my current job

• I am available to start immediately if needed

• I can adjust my start date based on the company's requirements
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Q1. Print All subset of an array of integers
Ans. 
Print all subsets of an array of integers
• Use recursion to generate all possible subsets

• For each element, include or exclude it in the subset

• Base case: when all elements have been considered, print the subset
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Q2. Print length longest subsequence from two given strings
Ans. 
Find and print the length of the longest subsequence from two given strings.
• Iterate through both strings and compare characters to find matching subsequences

• Use dynamic programming to keep track of longest common subsequence

• Return the length of the longest subsequence found
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Q3. Deep Basic Questions on C++ and golang, its comparisions
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Hacker earth - arrays, string and trees concept question

Q1. Question on Spring Boot, Hibernate and Spring Cloud
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Q2. DS Algo, binary search tree
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Q3. Docker/kubernetes concept
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Q1. All possible permutations of string
Ans. 
Generate all possible permutations of a given string
• Use recursion to generate permutations

• Swap characters to create different permutations

• Store permutations in an array of strings
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Q2. SQL query to get employees coming to office
Ans. 
Use SQL query with WHERE clause to filter employees coming to office.
• Use SELECT statement to retrieve data from the database.

• Use WHERE clause to filter employees based on coming to office.

• Consider using a column in the database that indicates whether an employee is coming to office or not.
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Market size assessment market for a new product

Q1. Current trends of Indsutry
Ans. 
Current trends in the industry include digital transformation, sustainability, and remote work.
• Digital transformation is driving innovation and efficiency in processes and operations.

• Sustainability is becoming a key focus with companies implementing eco-friendly practices and products.

• Remote work is on the rise, leading to changes in workplace dynamics and collaboration.

• Increased use of data analytics and AI for decisi...read more
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