IBM Interview Questions, Process, and Tips for Experienced

It was the test held on hackerrank platform. It consist of 1 java basic coding question and multiple choice questions from java 8, react, html, javascript, devops and microservice architecture.

Q1. Find duplicates from integer list using java 8 stream
Ans. 
Using Java 8 stream to find duplicates in an integer list
• Convert the integer list to a stream using stream() method

• Use Collectors.groupingBy() to group elements by their occurrences

• Filter the map entries to find duplicates by checking for values greater than 1
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Q2. What is default methods in spring
Ans. 
Default methods in Spring allow interfaces to have method implementations.
• Default methods were introduced in Java 8 to allow interfaces to have method implementations.

• In Spring, default methods can be used in interfaces to provide a default implementation for a method.

• Default methods can be overridden by classes that implement the interface if needed.
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Q1. Redux and hooks concepts
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Q2. Html5 and css3 concepts
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Q1. Azile methodology and javascript and react advanced concepts
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Q1. What are Agile principals
Ans. 
Agile principles are a set of values and beliefs that guide the Agile methodology in software development.
• Customer satisfaction through early and continuous delivery of valuable software

• Welcome changing requirements, even late in development

• Deliver working software frequently, with a preference for shorter timescales

• Collaboration between business people and developers throughout the project

• Supportive and trusting envir...read more
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Q1. What is data lake
Ans. 
A data lake is a centralized repository that allows you to store all your structured and unstructured data at any scale.
• Data lakes store raw data in its native format without the need to structure it beforehand

• Data lakes can store a variety of data types such as logs, images, videos, and more

• Data lakes enable data scientists and analysts to explore and analyze data without predefined schemas
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Q2. What is data sharing
Ans. 
Data sharing is the process of allowing multiple users or systems to access and use the same data.
• Data sharing involves granting permissions to users or systems to access specific datasets.

• It can be done through APIs, databases, file sharing, or cloud storage.

• Examples include sharing customer data between different departments in a company or sharing research data with collaborators.
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