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01: AWS Q&As on VPC, Subnets, Availability Zones, VPN, Route tables, NACLs & Security Groups

The above diagram addresses many of the questions that follow. Q1. What is a VPC in AWS? A1. A virtual private cloud (VPC) is a virtual network dedicated to your…

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02: AWS Identity & Access Management (i.e. IAM) interview Q&As

AWS - IAM

Q1. What is IAM? A1. IAM stands for Identity & Access Management. AWS Identity and Access Management (IAM) is a web service that helps you securely control access to AWS…

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12 Amazon Redshift interview Q&As

Q1. What is Amazon Redshift? A1. Amazon Redshift is a fully managed, petabyte-scale data warehouse service in the cloud. You can start with just a few hundred gigabytes of data…

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15 EC2 instances interview Q&As

Q01. What is an Amazon EC2 Service ? A01. EC2 stands for Elastic Cloud Computing that provides resizable (i.e. scalable) computing capacity in the cloud. You can use Amazon EC2…

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15+ AWS Services overview interview Q&As

Below questions are based on the above diagram, and extends AWS Q&As on VPC, Subnets, Availability Zones, VPN, Route tables, NACLs & Security Groups: Q1. What is the difference between…

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18 Amazon S3 interview Q&As

Q01. What is Amazon S3 storage? A01. S3 stands for Simple Storage Service, which provides storage through web service interfaces. Unlike the other storage systems like Unix file system, HDFS…

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18: Q121 – Q124 Choosing between HDFS & AWS S3 for BigData projects interview Q&As

More and more organisations are adopting the policy of “Cloud first architecture” where Cloud based storages like AWS S3 plays a major role. A data lake is a storage repository…

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21: Q138 – Q142 AWS data lakes overview Interview Q&As

Q138. What are the basic considerations when building a data lake on an AWS platform?
A138.

1. Ingestion into S3 (i.e. Simple Storage Service) from different source systems. E.g. csv/xml/json files extracted from source systems, streamed data from source systems via message queues/topics, etc.

2. Catalog & Search ingested data by building a metadata.…


5 Amazon EMR Vs. Cloudera interview Q&As

Amazon EMR & S3 buckets

Q1. What is Amazon EMR? A1. EMR stands for Elastic Map Reduce, which is an Amazon Web Services (AWS) tool for big data processing and analysis. Amazon EMR offers elastic,…

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Amazon Athena, Redshift, Redshift spectrum & Presto Q&As

Q1. What is AWS Athena? What are its capabilities? A1. Amazon Athena is an interactive query service that makes it easy to analyse data in Amazon S3 buckets using standard…

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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
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Key Area - Debug Hibernate
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Key Area - Microservices patterns
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300+ Core Java Interview Q&As
Core Java - Overview
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Core Java - Constructors
Core Java - Reserved Key Words
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Core Java - Objects
Core Java - OOP
Core Java - GC
Core Java - Generics
Core Java - FP
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Core Java - Java 7
Core Java - Java 8
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Core Java - Swing & AWT
Core Java - Understanding
300+ Enterprise Java Interview Q&As
JEE - Overview
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JEE - Web Services
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JEE - JTA
JEE - API Design
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150+ Spring & Hibernate FAQs
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150+ Java Architect interview FAQs
Architecture - Patterns
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Architecture - AWS
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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
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Code Quality - FAQs
Code Quality - Profiling
Code Quality - Performance Test
Code Quality - Unit Testing
Code Quality - BDD
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Code Quality – JUnit, Mockito & Spring
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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
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Coding - Pointer Algorithms
Coding - Queue Structure
Coding - Searching Algo
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Coding - Stack Structure
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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
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TUT - Spark on Docker
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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
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TUT - Akka Scala
TUT - Akka Java
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