Senior Performance Engineer

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Senior Performance Engineer Interview Questions and Answers

Updated 27 Aug 2024

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Q1. Explain JVM architecture and Tuning options

Ans.

JVM is the virtual machine that executes Java bytecode. It has various components and tuning options to optimize performance.

  • JVM consists of class loader, memory management, bytecode verifier, and execution engine

  • Tuning options include heap size, garbage collection algorithm, and thread stack size

  • JVM performance can be improved by optimizing code, reducing object creation, and using appropriate data structures

Q2. what is correlation

Ans.

Correlation is a statistical measure that describes the relationship between two variables.

  • Correlation can range from -1 to 1, with 1 indicating a perfect positive correlation, -1 indicating a perfect negative correlation, and 0 indicating no correlation.

  • Correlation does not imply causation, meaning just because two variables are correlated does not mean that one causes the other.

  • For example, if there is a positive correlation between studying hours and exam scores, it means ...read more

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Informatica - Senior Performance Engineer - Java Enterprise Applications (4-7 yrs) 4-7 years
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