Tests, links, undocumented commands, magazines, standard bodies which help for lab exam preparation.
Cisco Trainings and CCIE Preparation Bootcamps by Heinz Ulm
Cisco Trainings, CCIE and CCNP Preparation Bootcamps and moreclasses by Heinz Ulm
2024-06-16
More than 10 years a CCIE and more than 10 years conducting boot camps