Cisco Certified Network Professional Practice Test

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Prepare for your Cisco Certified Network Professional Test with confidence. Study using flashcards and multiple choice questions, each with detailed hints and explanations. Ensure your success on the exam!

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What are the valid VLAN ranges in a Cisco network?

1-1001, 1002-1005, 1006-4094
1-4094
21-1000
1000-2000

The correct answer is: 1-1001, 1002-1005, 1006-4094

The valid VLAN ranges in a Cisco network are defined by IEEE standards and Cisco’s implementation of VLANs. Cisco uses VLAN IDs to segregate network traffic into distinct virtual networks, and the valid ranges are established to fit both standard and extended VLAN configurations. The range of 1 to 4094 is the complete set of VLAN IDs according to the IEEE 802.1Q standard. However, within this range, there are certain VLAN IDs that serve specific purposes or are reserved for management tasks. In particular, VLAN IDs 1 through 1001 represent the standard range, while VLAN IDs 1002 through 1005 are reserved for token ring and FDDI networks. VLAN IDs from 1006 to 4094 are considered the extended range and can be used for VLAN configuration as needed by user-defined setups. This makes the first option a comprehensive definition of valid Ethernet VLAN ranges, accurately reflecting the structure and limitations that Cisco has established for VLAN assignments. By understanding the validated ranges and their specific uses, network professionals can correctly implement VLANs tailored for various operational requirements in their networks.