What is CCNA?

CCNA (Cisco Certified Network Associate)

The CCNA validates the ability to install, configure, operate, and troubleshoot enterprise level router and switched networks. This includes design implementation and verification of connections to remote sites in a WAN. New CCNA training includes basic mitigation of security threats, introduction to wireless networking and Voice. Cisco Career Certifications are IT professional certifications for Cisco products. The tests are administered by Pearson VUE. There are five levels of certification: Entry, Associate, Professional, Expert, and Specialist. For more information on Cisco Certifications, visit the Cisco Learning Network.
The first stage of Cisco’s certification system is the entry level and begins with CCENT (Cisco Certified Entry Networking Technician) certification as an interim step to CCNA (Cisco Certified Network Associate) and CCDA (Cisco Certified Design Associate) credentials. While the CCENT covers basic networking knowledge, and does not get involved with the more intricate technical aspects of the Cisco security, wireless, or voice curriculum, it does validate the skills essential for entry-level network support positions. CCENT qualified individuals have the knowledge and skill to install, manage, maintain and troubleshoot a small enterprise branch network, including network security. If you are looking to establish your credentials and expertise in networking, then a Cisco certification is what you need. Cisco CCNA training classes offered today covers different courses such as Cisco Data Center Training, Cisco Security Training, Cisco Network Management Training, Cisco Switching and Routing Training and many others. The first thing you need to do to get Cisco CCNA training is to choose a Cisco training center you want to join. There are several organizations on the internet which offers complete Cisco training courses so make sure you do your research and read the terms of the Cisco Career Trainings and Confidentiality Agreement. You need to know these because sometimes Cisco will prevent you from sharing the information you learn for their trainings. Cisco trainings will teach you a better understanding of the operations and functions of LAN, WAN, VPN, SAN and Cisco IOS fundamentals.

It is very necessary to learn and understand the various codecs that are supported by the cisco IP phones and the bandwidth that they each use:-

Various codecs are supported on Cisco IP Phones including:

-G711

-G729

-G729a

-ILBC

For more details, cLiCk hErE