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” … Read more ›...
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10: 8 Java Maps & Caching Data in Java Interview Q&As
Q1. What is the purpose of a Map interface in Java collection API? A1. A map is a set of associations between pairs of objects. … Read more ›...
4 FAQ Performance tuning in Java interview Q&As
Q1. In your experience, what are some of the major causes of performance bottlenecks in Java applications? A1. Cause #1: The JVM spends more time performing garbage collection due to...
6 Key considerations in processing large files in Java
Q1. What are the key considerations in processing large files?
A1. Before jumping into coding, get the requirements.
#1 Trade-offs among CPU, Memory Usage &…
8+ JMeter performance testing interview Q&As
Performance testing is an important process of any software development. You can bring this up yourself to many open-ended questions like — … Read more ›...
9 Java Garbage Collection interview questions & answers
Java Garbage Collection interview questions & answers to ascertain your depth of Java knowledge in building industry strength Java applications. Determining optimal Garbage Collection (GC) settings is critical to achieve...
javap, jps, jmap, and jvisualvm tutorial – analyzing the heap histogram
Q1. Is there anything wrong with the code snippet shown below?
A1. The above code creates too many “Integer” objects due to auto boxing.
…
JMeter for performance testing REST services with BeanShell
This post extends 8 JMeter Performance testing Interview Q&As to cover JSON HTTP post. Now a days, a single page interactive web sites are very popular, and they post JSON...
Monitoring/Profiling Java applications interview Q&A
Q1 How will you go about monitoring your Java application for potential performance or memory issues? A1 1. Visual VM for monitoring Java memory,… Read more ›...
Processing large files efficiently – BigData & Hadoop – part 3
Q1. What are the different data sizes, and what technologies can be used to process them? A1. In general, data sizes can be classified as shown below. … Read more...
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