CCNA certification is passing a 90-minute written test. CISCO doesn’t place any prerequisites for taking up the exam. However, there are various institutions that offer formal training to students appearing for the examCISCO also provides specialized certifications like CCNA Voice, CCNA Wireless and CCNA Security. These recognize the individual’s specific expertise in the corresponding area of computer networking.
The onetime CCNA certification is valid for three years after which candidates need to re-establish their qualification. This is in view of the constantly changing technology and software upgrades. Furthermore, candidates can also sit for advanced CCNA Exam devised for networking professionals and includes the CCIE (Cisco Certified Internetwork Expert).
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