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800+ Java & Big Data interview questions answered in detail with code & diagrams to be useful beyond job interviews. Prepare to fast-track & go places
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Archive for Big Data – 00: Roadmap
Blog Archives
A roadmap to become a Big Data Engineer – What skills are required?
Data Engineer road map
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
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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
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Architecture - ERD
Architecture - ETL
Architecture - Low Latency
Architecture - UML
100+ Companion Tech Q&As
16: Angular JS interview Q&As
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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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