N10-009 Domain 4: Network Security

Which port security feature limits MAC addresses on a switch port?

Multiple choice — select one answer

Answer choices

  1. a. 802.1X with posture assessment
  2. b. DHCP starvation/spoofing (rogue server)
  3. c. Port security sticky/learned limits
  4. d. SNMPv3 authPriv

Architectural breakdown & explanation

Port security restricts learned MAC count.

Correct answer(s): c. Port security sticky/learned limits

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

Official documentation & study links

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