Senior Performance Engineer Interview Questions and Answers

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

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