Publicis Sapient Senior Associate Technology L1 Interview Questions, Process, and Tips

Java8 MCQ, Springboot MCQ, MCQ on coding question and database

Q1. 1. Springboot basic questions on annotations 2. Join query
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Q2. Multithreading Java8 Coding question
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It was a MCQ test consist of 40 questions.

Full Project regarding product catalogue

Q1. It was a 2 hour long technical interview.
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Q1. Only Salary discussion happened.
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Q1. Missing number in sequence(choose the best algorithm)
Ans. 
Algorithm to find missing number in a sequence
• Use mathematical formula for arithmetic or geometric sequence

• For random sequence, use sorting and iteration

• Consider edge cases like empty sequence or multiple missing numbers
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Q2. Sorting the list of strings based on the count of their occurrences/
Ans. 
Sorting a list of strings based on their occurrence count.
• Create a dictionary to store the count of each string.

• Use the dictionary to sort the list based on the count of occurrences.

• If two strings have the same count, sort them alphabetically.

• Return the sorted list.
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Q3. Basic core java questions and Java 8 streams importantly
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Q4. Multithreading scenarios and locks related(Not too much in depth)
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Q5. Discussion about immutable class and it's purposes
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1 Hour MCQ based online coding test on java and design patterns.

Q1. Write Lambda expression for Sorting , PartitionBy in Java 8.
Ans. 
Lambda expressions in Java 8 for Sorting and PartitionBy
• Use Comparator interface with lambda expression for sorting

• Use Collectors.partitioningBy() method with lambda expression for PartitionBy
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Q2. Design Patterns? Types which all worked on
Ans. 
Design patterns are reusable solutions to common problems in software design. Some types include Singleton, Factory, Observer, and Strategy patterns.
• Singleton pattern ensures a class has only one instance and provides a global point of access to it.

• Factory pattern creates objects without specifying the exact class of object that will be created.

• Observer pattern defines a one-to-many dependency between objects so that w...read more
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Q3. Securing a REST API
Ans. 
Securing a REST API involves implementing authentication, authorization, encryption, and rate limiting.
• Implement authentication using tokens or API keys

• Use HTTPS to encrypt data transmitted over the network

• Implement authorization to control access to resources

• Implement rate limiting to prevent abuse or DoS attacks
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Q4. Indexes in Database. Normalisation. SQL Queries for groupby.
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Q1. Preferred Job Location
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Q2. Salary negotiation
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MCQ's based on Technologies. For me, it was Java, Spring,Rest.

Q1. Need to perform coding for every concept you say.
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Q2. Java Patterns Java String Java Array
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