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01: 15 Spring Boot interview Questions & Answers

Spring Boot Key Components

15 Spring boot interview questions & answers with tutorials for easy setup of new Spring applications. Spring boot helps you get started quickly with its auto-configuration ability, and Spring Cloud…

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01: Q07 – Q12 Microservices Interview questions & answers

Microservices with Spring

60+ microservices interview questions & answers covering Spring boot, Spring cloud, and microservices design patterns. If you are an enterprise Java developer, then most likely you will be developing Microservices using Spring boot. Let’s start with the beginner microservices interview questions & then get to much needed 20+ microservices design patterns.…


02: 8 Spring Boot interview Q&As

Spring Boot Key Components

This extends 01: 15 Spring Boot interview Questions & Answers. Q1. What is a Swagger in Spring Boot? A1. Swagger is an open source set of rules, specifications and tools…

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02: Microservices Architecture design patterns & considerations interview Q&As – Part 1

Microservices Architecture Patterns & considerations

This extends 10+ Key Microservices Interview Questions Answered. The architects & developers need to know these patterns & best practices to build robust systems. Q1. Why do we need design…

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03: Kubernetes (i.e. Minikube) – deploy a spring boot microservice app

minikube-springboot app

This extends Kubernetes (i.e. Minikube) – deploy a node js service. Docker containers & Kubernetes for deploying Spring Boot microservices. As mentioned earlier in Kubernetes, Docker & Microservices interview Questions…

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03: Microservices Architecture design patterns & considerations interview Q&As – Part 2

Microservices Architecture Patterns & considerations

This extends 02: Microservices Architecture design patterns & considerations interview Q&As – Part 1. 3. Decomposition Design Patterns When decomposing the Microservices, we should avoid having tight coupling between the…

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04: Microservices Architecture design patterns & considerations interview Q&As – Part 3

Microservices Architecture Patterns & considerations

This extends 03: Microservices Architecture design patterns & considerations interview Q&As – Part 2. 4. Cross-cutting concern patterns Microservices require various cross-cutting concerns such as metrics, reporting exceptions to an…

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05: Microservices Architecture design patterns & considerations interview Q&As – Part 4

Microservices Architecture Patterns & considerations

This extends 04: Microservices Architecture design patterns & considerations interview Q&As – Part 3. 4. Observability patterns Microservices require various cross-cutting concerns such as metrics, reporting exceptions to an exception…

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10+ Domain Driven Design (i.e. DDD) Interview Q&As

Q1. What is Domain Driven Design (i.e. DDD)? What is DDD oriented microservice? A1. Domain-driven design advocates modelling based on the reality of business as relevant to your use cases….

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10+ Key Microservices Interview Questions Answered

Q1. How will you go about choosing REST vs Messaging for Microservices?
A1. Microservices can be invoked both synchronously and asynchronously. Microservices must be organized around business functionalities like Customers, Orders, Invoices, Products, etc.

Synchronous Request/Response & public facing APIs

REST is a great fit for request/response interactions as HTTP(S) network protocol itself Request/Response base.…


800+ Java & Big Data Interview Q&As

300+ Java Interview FAQs
Java FAQs - 01: Prepared?
Java FAQs - 02: Ice Breaker
Java FAQs - 03: Core Java
Java FAQs - 04: OOP & FP
Java FAQs - 05: JEE
Java FAQs - 06: Spring
Java FAQs - 07: Hibernate
Java FAQs - 08: Web Services
Java FAQs - 09: Microservices
Java FAQs - 10: Messaging
Java FAQs - 11: Architecture
Java FAQs - 12: RDBMS
Java FAQs - 13: SQL
Java FAQs - 14: Code Quality
Java FAQs - 15: Key Areas
Java FAQs - 16: UML
Java FAQs - 17: GIT
Java FAQs - 18: Unix
Java FAQs - 19: DevOps (CI/CD)
Java FAQs - 20: AWS (Cloud)
Java FAQs - 21: Maven
Java FAQs - 22: Regex
Java FAQs - 23: JSON & XML
Java FAQs - 24: JMeter
300+ Big Data Interview FAQs
Big Data - 00: Roadmap
Big Data - 01: SQL
Big Data - 02: Data Modelling
Big Data - 02: Data Warehouse
Big Data - 03: Distributed Systems
Big Data - 04: Hadoop
Big Data - 05: MapReduce
Big Data - 06: Hive
Big Data - 07: Impala
Big Data - 08: Spark
Big Data - 09: Databricks
Big Data - 09: Spark SQL
Big Data - 10: Apache Kafka
Big Data - 11: Data Governance
Big Data - 11: NoSQL
Big Data - 12: Data security
Big Data - 13: Analytics & Science
Big Data - 14: AWS
Big Data - 15: Sqoop & Nifi
Big Data - 16: Yarn, Zookeeper
16+ Java Key Areas Q&As
Key Area - Going places
Key Area - Ice Breaker
Key Area - Design Concepts
Key Area - Judging Experience
Key Area - Best Practices
Key Area - Concurrency Mgmt
Key Area - Low Latency
Key Area - CI/CD & DevOps
Key Area - Debugging
Key Area - Debug Hibernate
Key Area - Debug Java
Key Area - Debug JEE
Key Area - Debug Spark
Key Area - Debug Spring
Key Area - Design Patterns
Key Area - GoF Design
Key Area - JEE Design
Key Area - Microservices patterns
Key Area - Exception Handling
Key Area - Memory Mgmt
Key Area - Performance
Key Area - Scalability
Key Area - SDLC
Key Area - Security
Key Area - Productivity Tools
Key Area - Transaction Mgmt
Key Area - QoS & SLAs
300+ Core Java Interview Q&As
Core Java - Overview
Core Java - Data types
Core Java - Constructors
Core Java - Reserved Key Words
Core Java - Classes
Core Java - Objects
Core Java - OOP
Core Java - GC
Core Java - Generics
Core Java - FP
Core Java - OOP to FP
Core Java - I/O
Core Java - Multithreading
Core Java - Data Structures
Core Java - Annotations
Core Java - AOP
Core Java - Other
Core Java - Collection API
Core Java - Differences X & Y
Core Java - Event Driven
Core Java - Exceptions
Core Java - Java 7
Core Java - Java 8
Core Java - JVM
Core Java - Reactive Program
Core Java - Swing & AWT
Core Java - Understanding
300+ Enterprise Java Interview Q&As
JEE - Overview
JEE - Web basics
JEE - Web Services
JEE - JPA
JEE - JTA
JEE - API Design
JEE - JDBC
JEE - Microservices
JEE - JMS
JEE - JMX
JEE - JNDI and LDAP
JEE - JSF
JEE - Other
150+ Spring & Hibernate FAQs
Framework - Hibernate Q&As
Framework - Spring Core
Framework - Spring MVC
Framework - Spring Cloud
Framework - Spring boot
Framework - Spring IO
Framework - Spring Config
150+ Java Architect interview FAQs
Architecture - Patterns
Architecture - How to
Architecture - AWS
Architecture - Distributed
Architecture - Microservices
Architecture - QoS
Architecture - ERD
Architecture - ETL
Architecture - Low Latency
Architecture - UML
100+ Companion Tech Q&As
16: Angular JS interview Q&As
12: Domain Knowledge interview Q&As
13: FIX interview Q&As
03: Git & SVN interview Q&As
10: Groovy interview Q&As
04: JavaScript interview Q&As
11: JMeter interview Q&As
08: Maven interview Q&As
09: NoSQL Interview Q&As
05: Regex Interview Q&As
01: SQL Interview Q&As
02: Unix interview Q&As
07: JSON interview Q&As
06: XML Interview Q&As
15: XSD Interview Q&As
14: YAML interview Q&As
250+ Scala Interview FAQs
Scala 140+ FAQs
Scala way of coding
200+ Python interview FAQs
80+ Java code quality Q&As
Code Quality - Automation
Code Quality - Code Coverage
Code Quality - FAQs
Code Quality - Profiling
Code Quality - Performance Test
Code Quality - Unit Testing
Code Quality - BDD
Code Quality – Testing DAOs
Code Quality – JUnit, Mockito & Spring
Code Quality – JUnit Web
Code Quality - Spring TXN
100+ Java coding interview Q&As
Coding - Can you write code?
Coding - Complete the code
Coding - Converting from A to B
Coding - Designing your classes
Coding - Data Structures
Coding - Arrays
Coding - Big O notation
Coding - Graph Structure
Coding - LinkedList Structure
Coding - Map Structure
Coding - Pointer Algorithms
Coding - Queue Structure
Coding - Searching Algo
Coding - Sorting Algo
Coding - Stack Structure
Coding - Tree structure
Coding - Data Which & Why
Coding - Passing the unit tests
Coding - What is wrong?
Coding - Home Assignments
Coding - Written Test Core Java
Coding - Written Test JEE

200+ Java & Big Data Tutorials

Tutorials - Big Data
TUT - ⏯ Starting Big Data
TUT - Starting Spark & Scala
TUT - Starting with Python
TUT - Kafka
TUT - Pig
TUT - Apache Storm
TUT - Spark Scala on Zeppelin
TUT - Cloudera
TUT - Cloudera on Docker
TUT - File Formats
TUT - Spark on Docker
TUT - Flume
TUT - Hadoop (HDFS)
TUT - HBase (NoSQL)
TUT - Hive (SQL)
TUT - Hadoop & Spark
TUT - MapReduce
TUT - Spark and Scala
TUT - Spark & Java
TUT - PySpark on Databricks
TUT - Zookeeper
Tutorials - Enterprise Java
TUT - ⏯ Starting with Java
TUT - Diagnosis
TUT - Akka
TUT - Akka Scala
TUT - Akka Java
TUT - AWS EC2
TUT - CI/CD Jenkins
TUT - Core Java
TUT - Debugging
TUT - Java 8
TUT - JSON and Java
TUT - Java Beginner
TUT - XML and Java
TUT - CSV and Java
TUT - Docker
TUT - JEE
TUT - Web & Web Services
TUT - REST Client
TUT - JSF
TUT - JDBC
TUT - FIX and Java
TUT - JAXB
TUT - JMX
TUT - JPA
TUT - MySQL
TUT - Scala
TUT - Scala Actors
TUT - Spring & Hibernate
TUT - Hibernate
TUT - Spring Basics
TUT - Spring batch
TUT - Hibernate & Spring
TUT - Spring Boot
TUT - Spring IO
TUT - Spring ORM
TUT - Spring other
TUT - Spring OXM
TUT - Spring Cloud
TUT - Tools
TUT - JMeter
TUT - Maven
TUT - Maven Assembly
TUT - Maven Profiles
TUT - Productivity Tools
TUT - Kubernetes
TUT - ⏯ Videos
TUT - ⏯ Starting with Java
TUT - ⏯ Spring Core
TUT - ⏯ Spring MVC
TUT - ⏯ JDBC, Hibernate
TUT - ⏯ Spring Boot
TUT - ⏯ Angular with Spring
TUT - ⏯ Q&As
TUT - Other
TUT - SQL
TUT - Drools
TUT - Apache POI
TUT - DOS
TUT - Dozer
TUT - ESB
TUT - Groovy
TUT - Jasper Reports
TUT - Logging and auditing
TUT - Metrics
TUT - Orika Mapping
TUT - Pentaho Kettle ETL
TUT - Unix
TUT - Webspeher MQ
TUT - YAML
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