How Long the Certification is good For?
When the certification is done one of the top things that you need to be aware of is how long it lasts. The exam and the results from the CISCO networking courses are valid for 3 years after the certification has been earned, which means you are going to have to do this every few years.
Once you have taken the basic CISCO networking courses, then you can go on for the higher certifications. If you are going to do this, then just take the next exam before the expiration date and you will continue to have a valid certification.