Worldline Global Services Programmer Interview Questions and Answers

Q1. Was asked to explain about projects
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Q1. Asked about reasons for job change,etc , and was very kind.
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Q1. All general questions regarding day to day activities of BA
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Q1. Package discussion in hr round
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Q1. Java 8 questions, Kubernates, Jira and Devops, Jboss configuration Jvm performance
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Q2. Streams in java 11 Collections handling with streams
Ans. 
Streams in Java 11 provide a concise and efficient way to handle collections.
• Streams allow for functional-style operations on collections.

• They can be used to filter, map, and reduce data.

• Parallel streams can improve performance on large collections.

• Example: List<String> names = Arrays.asList("John", "Jane", "Bob"); long count = names.stream().filter(name -> name.startsWith("J")).count();

• Example: List<Integer&g...read more
Answered by AI
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Two question was asked to solve using PySpark.
Word Count Coding Question was asked with Test Cases.

Q1. Question on PySpark Architecture
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Q2. PySpark Coding Question
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Q1. Java basics- abstraction, interface, multithreading, garbabge collector etc..
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Q2. Knowledge about design patters, microservices pattern- circuit breaker, distributed training.. etc.
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Q3. Framework like spring boot- basics like autowire, beans, annomations, internal spring working.
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Q1. Two PySpark based question: 1) Count of words in para 2) Creating a flow of pipeline.
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