200-301 ccna exam fee

200-301 ccna exam fee.b. For each interface that is in the connected (up/up) state, two other issues need to be examined: duplex mismatch and frame loss due to various port security reasons. (1) Interface Status Codes and Causes of Non-Working States Cisco switches use two different status codes: one status code is a dual code, the same as the router interface status code, and the other is a single code. Both status codes can be used to determine if an interface is working. Similar to routers, the show interfaces and show interfaces description commands can be executed on the switch to display the status of the dual codes, which are known as LineStatus and ProtocolStatus, and can be used to query whether Layer 1 and Layer 2 are working, respectively. LAN switch interfaces generally use two "up" or two "down" to show the interface status.The LAN switch interfaces generally use two "up" or two "down" to show the interface status, because all switch interfaces use the same Ethernet data link layer protocol, so there is absolutely no problem with the data link layer protocol.Tip: This double code is always abbreviated in this book, with a slash separating the two codes, such as "up/up".The show interfaces status command displays individual interface status codes, and this individual interface status code corresponds to different combinations of traditional double-word interface status codes, which can be easily related to each other. For example, the show interfaces status command displays the **connected" status of a working interface, corresponding to the up/up status shown by the show interfaces and show interfaces description commands.Any interface that is not in the connected or up/up state means that the switch cannot forward or receive frames over that interface. Each non-working interface state is the result of a series of root cause problems. Again, note that the exam often asks questions about one or the other type of status code given, so in order to respond to the exam, you should know the meaning of both interface status codes. Table 3-2 shows the status code combinations and the root causes that lead to a particular interface state.L'f. Table 3-2 LAN Switch Interface Status CodesamSJSLine Status Protocol Status Interface Status Typical Root Causeadmin. down down disabled Use the shutdown command to configure the interface