220-802 · Question #664
A technician, Joe, has a wired switch in a conference room for guests. In which of the following ways could Joe restrict the network to only six devices at a time, with minimum management effort?…
The correct answer is A. Disable the extra Ethernet ports on the switch B. Configure DHCP for six addresses maximum. Physically disabling unused switch ports and limiting the DHCP scope to six addresses together enforce a six-device maximum with minimal ongoing management.
Question
A technician, Joe, has a wired switch in a conference room for guests. In which of the following ways could Joe restrict the network to only six devices at a time, with minimum management effort? (Select TWO).
Options
- ADisable the extra Ethernet ports on the switch
- BConfigure DHCP for six addresses maximum
- CEnable Spanning Tree protocol
- DCreate an access control list for each new PC
- EConfigure DNS to only resolve six IP addresses
- FAdd each guest to the MAC filter list
How the community answered
(60 responses)- A72% (43)
- C17% (10)
- D7% (4)
- E2% (1)
- F3% (2)
Why each option
Physically disabling unused switch ports and limiting the DHCP scope to six addresses together enforce a six-device maximum with minimal ongoing management.
Disabling the extra Ethernet ports on the switch at the hardware level prevents any physical connection beyond the allowed number, requiring no per-device configuration.
Configuring the DHCP server to issue a maximum of six leases ensures that even if additional devices are plugged in, they cannot obtain an IP address and therefore cannot communicate on the network.
Spanning Tree Protocol prevents network loops and has no function in limiting the number of connected devices.
Creating an ACL for each new PC requires individual configuration per device, which is high management effort and contradicts the 'minimum management' requirement.
DNS resolves hostnames to IP addresses and cannot cap the number of devices on a network segment.
Adding each guest to a MAC filter list requires manual entry for every device, making it a high-management solution.
Concept tested: Limiting switch connections via port control and DHCP scope
Source: https://learn.microsoft.com/en-us/windows-server/networking/technologies/dhcp/dhcp-top
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