N10-009 Domain 4: Network Security

Which TWO mitigate VLAN hopping? (Select TWO.)

Multiple response — select two or more answers

Answer choices

  1. a. Disable DTP/auto-trunk on access ports
  2. b. Enable native VLAN tagging best practices
  3. c. Use default VLAN 1 for all user traffic
  4. d. Publish SNMP community
  5. e. Prune unused VLANs from trunks

Architectural breakdown & explanation

Secure trunk/access port settings and VLAN pruning reduce hopping.

Correct answer(s): a. Disable DTP/auto-trunk on access ports, e. Prune unused VLANs from trunks

Exam domain: Domain 4: Network Security (19% weight on the official guide).

Official documentation & study links

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