We are often asked what is the recommended sequence of classes.  Here is our recommended sequence of classes for Cisco

First get your CCNA

N-205 ICND 1

exam: 640-822 (CCENT)

Arrowright

N-305 ICND 2

exam: 640-816 -or-
640-802(CCNA) single exam covering icnd1 and icnd2

For CCNP

N-405- Implement Cisco IP route:

exam: 640-902

Arrowright

N-415-implementing cisco switched networks

exam: 640-813

Arrowright

N-435 Troubleshooting and Maintaining cisco ip Networks

exam: 640-832