How does ADDI typically retrieve source files and other artifacts from z/OS for analysis?

Think of it like working hands-on with IBM mainframe systems — the answer here is 'Through an IBM MQ message queue configured on the mainframe'. ADDI retrieves mainframe artifacts such as COBOL source, copybooks, JCL, and load libraries using FTP or IBM Data Set Services over a standard TCP/IP network link to z/OS. On real mainframe exams, this concept comes up repeatedly so make sure you have it locked in.