Seagull is a multi-protocol traffic generator. Especially targeted towards IMS, Seagull supports Diameter (RFC3588 and all applications) over TCP/SCTP and IPv4/IPv6 , TCAP (over SS7 or Sigtran), XCAP over HTTP and Radius.
TestGuru is an Open Source educational, testing, or training software written in TCL/TK. This software allows one to create custom quizzes or sample exams to test your own knowledge and abilities. Sample exams can be created or downloaded from test sites