Multiple choice general knowledge science & technology WSO2 ESB is uses the following Web Services Framework? Apache CXF Apache Axis Apache Axis 2 JBoss Web Services Metro Web Services Reveal answer Fill a bubble to check yourself C Correct answer Explanation WSO2 ESB is built on Apache Axis2 as its underlying Web Services framework. Axis2 provides the core messaging and SOAP processing capabilities that power WSO2's integration middleware.