A network administrator wants to increase network security by preventing client devices from communicating directly with each other on the same subnet. Which of the following technologies should be…

The correct answer is D. Private VLAN. Private VLANs (PVLANs) are used to segment devices on the same subnet and switch so they cannot communicate with each other, while still accessing a shared resource like a router or gateway. This is often used in shared hosting or DMZ environments.

Submitted by satoshi_tk· Mar 6, 2026Network Security

Question

A network administrator wants to increase network security by preventing client devices from communicating directly with each other on the same subnet. Which of the following technologies should be implemented?

Options

AACL
BTrunking
CPort security
DPrivate VLAN

How the community answered

(52 responses)

A
2% (1)
B
4% (2)
C
2% (1)
D
92% (48)

Explanation

Private VLANs (PVLANs) are used to segment devices on the same subnet and switch so they cannot communicate with each other, while still accessing a shared resource like a router or gateway. This is often used in shared hosting or DMZ environments.

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