Once you have successfully passed one of the many CISCO networking courses, then you would be able to start working. There are plenty of jobs that you would be able to take on, including IT manager and other positions that are entry level.
Think about what area you want to work in so that you can excel in that during the CISCO networking courses. You should be aware of what type of job you want so that you can figure out where to apply afterward. Thus, make a wise decision while choosing the course.