Have you seen job advertisements requiring Java candidates to work in low latency, high throughput, real-time and distributed systems with share-nothing architectures? Wondering what questions you will be asked? If you are an experienced Java developer targeting high paying skills then it pays to get a good handle on Java low latency interview questions &
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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...
Java interview questions & answers on multithreading scenarios to judge your experience in building applications with concurrency in mind. Q1. Can you give some scenarios where you built concurrent systems? A1. In a concurrent system different threads run concurrently, … Read more ›...
This post extends the 01: Networking basics interview Q&As on ip address, subnet mask, DNS & gateway with some of the key networking concepts that we face as software engineers & architects. VPN Q1. What is a VPN? A1. … Read more ›...
A software application is built by coupling various classes, modules, and components. Without coupling, you can’t build a software system. But, the software applications are always subject to changes and enhancements. So, you need to build your applications such a way that they can not only adapt to growing requirements,...
The scenario based questions are very popular with the job interviewers, and some scenario based questions are related to decoupling and asynchronous (aka non-blocking) processing in Java with message queues/topics, database tables where one process inserts data and another process consumes the inserted data, and Future objects in Java multi-threading....
Q01. Can you describe a business domain of a Telecom company offering multiple services to its customers? A01. A Telecom company will have entities such as Customer, Account, Subscriptions & Products representing a business domain. 1) Each customer entity has a name, … Read more ›...
Q1. In your Java experience, what are some of the common dilemmas you face when writing unit tests? A1. Whether to fix the code or the test. When you write unit tests, sometimes you feel compelled to change your code just to facilitate the test. … Read more ›...
This extends Q1. Can you give some scenarios where you had used multi-threading in Java applications? Q2. Can you give some scenarios where you used the synchronized keyword in Java? A2. Firstly, you need to assume that your code is always going to be accessed by multiple threads. … Read...
Let’s look at scenarios or problem statements & how would you go about handling those scenarios in Java. These scenarios interview questions will judge your Java experience. Full list of Java scenarios based interview questions are covered at Judging your Java experience via scenarios based interview Q&As.
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This extends 18 Java scenarios based interview Q&As for the experienced – Part 1 #9 Single Sign-On Q09. Scenario: You have a number of applications like cash, mortgages, investments, etc where a user has to login separately into each system. For example, … Read more ›...
Production issues seek the attention of middle and top level management. Often these are intermittent issues that are harder to reproduce in lower environments without the right know-hows & tools. Some will shrug it off as “Cannot be reproduced“, whilst others will seize the opportunity to showcase their technical strengths...
Extends: 1. Asynchronous processing in Java real life examples – part-1. Example 3: Trade execution reports are received & processed asynchronously If you are working in an online trading application, you may want the functionality to queue trades and process them when the stock market opens. … Read more ›...
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