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Exam N10-007 topic 1 question 11 discussion

Actual exam question from CompTIA's N10-007
Question #: 11
Topic #: 1
[All N10-007 Questions]

A technician wants to prevent an unauthorized host from connecting to the network via Ethernet. Which of the following is a Layer 2 access control the technician should implement?

  • A. Access control lists
  • B. Captive portal
  • C. WPA2
  • D. Port security
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by BoyuanLIU at March 6, 2021, 7:15 a.m.

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Dedony
2 years, 2 months ago
Port security enables you to electronically turn the switch port off so that connecting a cable will not even work unless enabled from the global config mode
upvoted 3 times
bogd
1 year, 9 months ago
You are confusing port security with shutting down the port...
upvoted 1 times
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b0ugi3
2 years, 9 months ago
keyword "via Ethernet" aka port
upvoted 1 times
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BoyuanLIU
3 years, 1 month ago
Why not Access control lists?
upvoted 2 times
Shamwedge
2 years, 10 months ago
They said layer 2 - layer 2 deals with mac address Port Security is done via mac addresses ACL's are done on a firewall - firewalls are layer 3
upvoted 9 times
Renfri
2 years, 3 months ago
ACLs are not only on firewalls, but most commonly on firewalls. Also, ACLs can be up to Layer 7. They prevent/allow HTTP, POP, IMAP traffic.
upvoted 1 times
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ay_caramba24
3 years, 1 month ago
They want to prevent an unauthorized host from connecting to the network via Ethernet. Anyone can hook up their laptop to an open Ethernet port. Port Security (Layer 2) would only allow certain computers to connect via a given port. ACL is associated with Layer 3 of the OSI model. Therefore, answer is D.
upvoted 10 times
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