What is the effect of entering the ip dhcp snooping limit rate 6 configuration command on a switch?

What is the effect of entering the ip dhcp snooping limit rate 6 configuration command on a switch?

• A. It disables DHCP snooping on all interfaces
• B. It restricts the number of discovery messages, per second, to be received on the interface
• C. It enables DHCP server functionalities on the switch
• D. It allows unlimited DHCP requests from the interface

Answer: (B)

Entering the command to configure a rate limit for DHCP snooping, such as "ip dhcp snooping limit rate 6," is meant to enhance network security by controlling the amount of DHCP discovery messages handled by a switch interface. Specifically, this command restricts the number of DHCP discovery messages that can be received on the interface to six messages per second. This is important because it helps mitigate the risk of DHCP spoofing attacks, where a malicious device could overwhelm the legitimate DHCP server with a flood of requests to disrupt network service. By setting a limit, the switch can help maintain better performance and stability by preventing excessive traffic and ensuring that only a controlled number of requests are processed. Other options do not align with the intended functionality of this command, as they either imply disabling features or enabling functionalities not related to the limitation of DHCP messages.

Entering the command to configure a rate limit for DHCP snooping, such as "ip dhcp snooping limit rate 6," is meant to enhance network security by controlling the amount of DHCP discovery messages handled by a switch interface. Specifically, this command restricts the number of DHCP discovery messages that can be received on the interface to six messages per second.

This is important because it helps mitigate the risk of DHCP spoofing attacks, where a malicious device could overwhelm the legitimate DHCP server with a flood of requests to disrupt network service. By setting a limit, the switch can help maintain better performance and stability by preventing excessive traffic and ensuring that only a controlled number of requests are processed.

Other options do not align with the intended functionality of this command, as they either imply disabling features or enabling functionalities not related to the limitation of DHCP messages.