Networks and networking have grown exponentially over the last 15 years understandably so. They have had to evolve at light speed just to keep up with huge increases in basic mission-critical user needs such as sharing data and printers as well as more advanced demands such as videoconferencing. Unless everyone who needs to share network resources is located in the same office are which is an increasingly uncommon situation, the challenge is to connect the sometimes many relevant networks together so all users can share the network’s wealth. CCNA (Cisco Certified Network Associate) is an information technology (IT) certification from Cisco Systems. CCNA certification is an associate-level Cisco Career certification.