Skillset can help you prepare! Sign up for your free Skillset account and take the first steps towards your certification.
Describe basic steps to troubleshoot a Layer 2 LAN issue (Select ALL that apply).
No Connectivity between Switches
Duplex Mismatch
Lack of reach ability to devices in same VLAN
Spanning Tree Protection
A duplex mismatch usually does not bring link down; it just creates suboptimal performance. Duplex mismatch might be caused due to hard-coding one side of the link to full duplex but leaving other side to auto negotiates. You would suspect a duplex mismatch if you saw collision on a full-duplex link because a full-duplex link should never have collisions. Half duplex on both sides will show some error.
Check for interface shut down using “show ip interface” command”. Here is example below: R1#show ip interface fa0/0 FastEthernet0/0 is up, line protocol is up Internet protocol processing disabled R1#
Eliminate Layer 1 issue using "show ip interface “command. Verify VLAN exist on the Switch using “Show VLAN “
Study thousands of practice questions that organized by skills and ranked by difficulty.
Create a tailored training plan based on the knowledge you already possess.
Know when you’re ready for the high-stakes exam. Have the confidence that you will pass on your first attempt.