Cisco Certified Network Associate (CCNA) The Cisco Certified Network Associate (CCNA) certification is the second level of Cisco's five-level career certification process. A CCNA certification certifies a technician's ability to install, set up, configure, troubleshoot and operate a medium-sized routed and switched computer network.
Freebase(0.00 / 0 votes)Rate this definition: Retraining. Vocational rehabilitation or retraining is the process of learning a new skill or trade, often in response to a change in the economic environment. Generally it reflects changes in profession rather than an upward movement in the same field.
Retarder Auxiliary Brake Systems Explained. This truck system is what provides that alternate braking capacity when needed. While coming down a mountain grade, extended application of light braking, results in overtemp of the brake drums and shoes, which reduces the braking capacity, and this situation is referred to as brake fade.