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Cisco Networking Academy's Introduction to VLANs

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This chapter will cover how to configure, manage, and troubleshoot VLANs and VLAN trunks. It will also examine security considerations and strategies relating to VLANs and trunks, and best practices for VLAN design.
This chapter is from the book


Upon completion of this chapter, you will be able to answer the following questions:

  • What is a VLAN and what benefits are provided by implementing VLANs?
  • What are the different types of VLANs?
  • When would you use a trunk?
  • How does a trunk work?
  • What is the purpose of the native VLAN?
  • How do you configure VLANs and trunks?
  • What is DTP and when should you use it?
  • What commands would be used to troubleshoot VLANs and trunks?
  • What types of security issues are related to VLANs and trunks and how would you mitigate these issues?
  • What are the best practices to use when implementing VLANs and trunks?
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