Study Guide Cisco Certified Network Associate 3.0 CCNA 3.0 Version 1
Study Guide Cisco Certified Network Associate 3.0 CCNA 3.0 Version 1
One of the keys to understanding Cisco is the OSI model. The OSI model permits people to understand how internetwork works and it serves as a guideline or framework for creating and implementing network standards, devices, and internetworking schemes. Some of the advantages of the OSI model include: • It allows for the breaking down of complex operation into simple elements; • Enables engineers to specialize the design and development of modular elements; and • It provides standards for plug and