A user attempts to remote into their machine at night but cannot connect. The user believes that someone is unplugging their computer from the network at night and plugging in a personal machine…

The correct answer is A. Limit the port to a specific MAC address. Limiting a switch port to a specific MAC address (port security) ensures that only the authorized machine-identified by its unique hardware address-can communicate on that port. If an unauthorized device is plugged in, the switch will detect the MAC address mismatch and block…

Networking

Question

A user attempts to remote into their machine at night but cannot connect. The user believes that someone is unplugging their computer from the network at night and plugging in a personal machine. Which of the following security measures would BEST prevent this behavior from continuing?

Options

ALimit the port to a specific MAC address.
BSet the port to only activate during business hours.
CDisable DHCP on the network router.
DDeactivate the port that is being used from the switch.

How the community answered

(57 responses)

A
75% (43)
B
14% (8)
C
7% (4)
D
4% (2)

Explanation

Limiting a switch port to a specific MAC address (port security) ensures that only the authorized machine-identified by its unique hardware address-can communicate on that port. If an unauthorized device is plugged in, the switch will detect the MAC address mismatch and block the connection. Setting business-hours activation would prevent the legitimate user from connecting at night too. Disabling DHCP only affects dynamic IP assignment and can be bypassed with a static IP. Deactivating the port entirely would also block the legitimate user.

Topics

#MAC address filtering#port security#switch access control#network access control

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