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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Home › 800+ Java & Big Data Interview Q&As › 16+ Java Key Areas › Archive for Key Area – Performance
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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 ›...
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Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQs4 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...
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Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQs6 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 ›...
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Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQs9 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 high throughput &
…
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...
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Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQsMonitoring/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 ›...
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Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQsProcessing 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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Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQsProcessing large files efficiently in Java – multi-threaded code – part 2
If you want to process medium sized data (e.g. 2 GB to 100 GB in multiple files) in Java, consider writing a batch job with Spring batch or Java EE...
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Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQsTop 10 causes of performance issues in Java
Cause #1: The JVM spends more time performing garbage collection due to improper Garbage Collection (GC) configuration. E.g. Young generation being too small. … Read more ›...
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Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQsUnderstanding service and socket timeouts in Java enterprise applications
Q. Why is it important to set proper timeout values in your applications?
A. Security and performance.
Security reason: it is often necessary to control how long a Web Service client or other valuable clients invoking valuable resources like database connections,
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