N10-009 Domain 4: Network Security

Which segmentation limits east-west malware spread?

Multiple choice — select one answer

Answer choices

  1. a. SPF/DKIM/DMARC
  2. b. Next-generation firewall (NGFW)
  3. c. WIPS scanning and ACL on wired uplinks
  4. d. Micro-segmentation / VLAN ACLs

Architectural breakdown & explanation

Segmentation contains lateral movement.

Correct answer(s): d. Micro-segmentation / VLAN ACLs

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

Official documentation & study links

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