Exam - Legacy DDR (BRI) - AND PRI???

in CCNA & CCENT
Hi, I understand for the exam we must be able to configure legacy DDR on ISDN i.e. BRI.
Do we need to know how to configure PRI also?
Thanks!
:P
Do we need to know how to configure PRI also?
Thanks!
:P
0
Comments
http://www.cisco.com/en/US/learning/le3/le2/le0/le9/learning_certification_type_home.html
It is hardly difficult to configure and learn - it is 4 commands off DDR Legacy configuration.....