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Exam 200-105 All Questions

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Exam 200-105 topic 1 question 7 discussion

Actual exam question from Cisco's 200-105
Question #: 7
Topic #: 1
[All 200-105 Questions]

Which spanning-tree feature places a port immediately into a forwarding state?

  • A. BPDU guard
  • B. PortFast
  • C. loop guard
  • D. UDLD
  • E. UplinkFast
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Suggested Answer: B 🗳️
by YR at Nov. 18, 2019, 4:38 p.m.

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YR
5 years, 7 months ago
PortFast works on Access Ports where you connect end devices. However, enabling it on trunk ports could cause temporary loops on Layer 2, but that's not to say that you shouldn't do it, but that is a limitation of PortFast if/when enabled on trunk ports, and it may be worth avoiding if this causes issues on the network. https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4000/8-2glx/configuration/guide/stp_enha.html#wp1033890
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