Chapter Eleven. Troubleshooting
This chapter covers the following official CCNA Routing and Switching 200-120 exam topics:
► Troubleshoot and resolve Layer 1 problems.
► Troubleshoot and resolve VLAN problems.
► Troubleshoot and resolve trunking problems on Cisco switches.
► Troubleshoot and correct common problems associated with IP addressing and host configurations.
► Troubleshoot and resolve ACL issues.
Troubleshoot Layer 1 Problems
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