Chapter Review– Cisco Basic Network Hardware

Users tend to think of “the network” as a sort of virtual thing: it exists “out there,” but where “there” is, and how bits are translated into signals, signals are carried from place to place, and data is processed are all something of a mystery. Network engineers, however, know that while networks can be described in virtual terms, networks are built out of physical cables, servers, racks, and cooling systems.

Understanding these components and how to use them to build a network is critical to network engineering. Thisunderstanding combines wiring diagrams with knowledge of ports, lights, racks, cable management, and cooling to build a physical network.

One key to doing well on the exams is to perform repetitive-spaced review sessions. Review this chapter’s material using either the tools in the book or interactive tools for the same material found on the book’s companion website. Refer to the online Appendix D, “Study Planner,” element for more details.

Table 10-2 outlines the key review elements and where you can find them. To better track your study progress, record when you completed these activities in the second column.

Table 10-2 Chapter Review Tracking

Review All the Key Topics

Table 10-3 lists the key topics for this chapter.

Table 10-3 Key Topics for Chapter 10

Key Terms You Should Know

Key terms in this chapter include rack unit (RU) management port auxiliary port console port NIM chassis device line card letters in a port number numbers in a port number solid green status light flashing green status light yellow status light red status light physical network diagram logical network diagram rack-mounted cable organizers CRAC hot aisle cold aisle Concepts and Actions Review the concepts considered in this chapter using Table 10- 4. You can cover the right side of this table and describe each concept or action in your own words to verify your understanding.

Table 10-4 Concepts and Actions