300-115 question 102 discussion

answered

What does the command vlan dot1q tag native accomplish when configured under global
configuration?

  • A. All frames within the native VLAN are tagged, except when the native VLAN is set to 1.
  • B. It allows control traffic to pass using the non-default VLAN.
  • C. It removes the 4-byte dot1q tag from every frame that traverses the trunk interface(s).
  • D. Control traffic is tagged.
Created 4 months ago by n.warnakula@gmail.com

n.warnakula@gmail.com

D seems to be the wrong answer. A seems to be more plausible

weyden

I think D is the correct answer. Control traffic passes in the native vlan, which gets tagged by the command, making D the only 100% true statement. A is true as far as 'all frames in the native vlan are tagged', but there is not exception when native vlan is 1.

behruzhuseyn

http://www.cisco.com/c/m/en_us/techdoc/dc/reference/cli/nxos/commands/l2/vlan-dot1q-tag-native.html

mthomas01

D: To enable dot1q (IEEE 802.1Q) tagging for all native VLANs on all trunked ports on the switch, use the vlan dot1Q tag native command.