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Exam 200-301 topic 1 question 643 discussion

Actual exam question from Cisco's 200-301
Question #: 643
Topic #: 1
[All 200-301 Questions]

What is a practice that protects a network from VLAN hopping attacks?

  • A. Enable dynamic ARP inspection
  • B. Configure an ACL to prevent traffic from changing VLANs
  • C. Change native VLAN to an unused VLAN ID
  • D. Implement port security on internet-facing VLANs
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Suggested Answer: C 🗳️
by Gauain at June 30, 2023, 1:53 a.m.

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lucasleeli
6 months, 2 weeks ago
C is correct answer, but if choose C that will cause other security potential risk, the best answer should be B? guys agree?
upvoted 1 times
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lucasleeli
6 months, 2 weeks ago
C is correct answer, but if choose B that will cause other security potential risk, the best answer should be B? guys agree?
upvoted 1 times
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[Removed]
7 months, 1 week ago
Selected Answer: C
C is correct
upvoted 1 times
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NewJeans
1 year ago
Selected Answer: C
It can be B but the first countermeasure is changing the native vlan.
upvoted 1 times
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RODCCN
1 year, 3 months ago
Selected Answer: C
VLAN Hopping is an attack where the attacker is able to send traffic from one VLAN into another, one of the attacks is the "Double Tagging". To prevent a Double Tagging attack, keep the native VLAN of all trunk ports different from user VLANs. LINK: https://cybersecurity.att.com/blogs/security-essentials/vlan-hopping-and-mitigation
upvoted 4 times
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dorf05
1 year, 3 months ago
Correct answer: B.... When using VACL
upvoted 2 times
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Gauain
1 year, 4 months ago
howwwwwwwww
upvoted 1 times
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