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01: 7+ Java architectural patterns interview Q&As – Part 1

One of the very frequently asked open-ended interview questions for anyone experienced is:

Can you describe the high-level architecture of a recent application you had worked on?

⏯ Java based high-level architecture & Integration Styles Interview Q&As Video.

You will be asked:

1) to draw an architectural diagram on a white board and

2) to provide a brief description of the architecture,

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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 AWS account. It is logically isolated from other virtual networks in the AWS Cloud. … Read more ›...



01: Q07 – Q12 Java Micro & Web services Interview Q&As

Covers “Debugging & troubleshooting a complex distributed system” & “Low latency between fine-grained services“, which are popular interview questions. Extends Java Web Services Basics Interview Q&As – Q01 – Q06. Q7. What is a microservice architecture (aka MSA)? … Read more ›...



01: Q13 “12 Rules” for REST API design & development

These are more like rules to develop RESTFul web services as opposed to being the best practices. REST is an architectural style without any contracts or specifications. So, it is imperative to apply the following rules for better REST API design. #1. Write stateless RESTFul services This means each request...



02: 15 key considerations for low latency Java

Extends Writing low latency applications in Java interview Q&As. If the job description says “low latency” application, then be prepared. Even if “low latency” experience is not a requirement, all employers like candidates who can not only build systems that perform well, but also can stress test (e.g. … Read...



02: 7+ Java architectural patterns interview Q&As – Part 2

This extends Q01: 7+ Java Architectural Patterns Interview Q&As – Part 1. Q2. How does a Java EE application integrate with other systems? A2. Using various protocols like HTTP(S), WebSocket, SOAP, AMQP, RMI, SFTP, TCP, SSH, FIX, proprietary protocols, … Read more ›...



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

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 resources. You use IAM to control who is authenticated (i.e. … Read more ›...



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Java Interview FAQs

800+ Java Interview Q&As

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