What is the effect of enabling DHCP snooping on a switch?

What is the effect of enabling DHCP snooping on a switch?

• A. It allows unauthorized DHCP servers to provide addresses
• B. It prevents rogue DHCP servers from providing false IP addresses
• C. It increases the speed of DHCP requests
• D. It disables DHCP requests from all clients

Answer: (B)

Enabling DHCP snooping on a switch provides a critical layer of security within the DHCP environment by preventing rogue DHCP servers from providing false IP addresses. This feature allows the switch to distinguish between trusted and untrusted ports based on the network setup. Trusted ports are typically connected to legitimate DHCP servers, while untrusted ports are used for end devices. When DHCP snooping is enabled, the switch will only allow DHCP messages from trusted ports to pass through, effectively blocking any DHCP responses from untrusted sources. This protection helps to mitigate man-in-the-middle attacks and ensures that devices on the network receive valid IP addresses assigned by authorized DHCP servers. The other options present misunderstandings of the role of DHCP snooping or its implications. Instead, by focusing on securing the DHCP process, DHCP snooping safeguards the integrity of the IP addressing scheme in the network.

Enabling DHCP snooping on a switch provides a critical layer of security within the DHCP environment by preventing rogue DHCP servers from providing false IP addresses. This feature allows the switch to distinguish between trusted and untrusted ports based on the network setup. Trusted ports are typically connected to legitimate DHCP servers, while untrusted ports are used for end devices.

When DHCP snooping is enabled, the switch will only allow DHCP messages from trusted ports to pass through, effectively blocking any DHCP responses from untrusted sources. This protection helps to mitigate man-in-the-middle attacks and ensures that devices on the network receive valid IP addresses assigned by authorized DHCP servers.

The other options present misunderstandings of the role of DHCP snooping or its implications. Instead, by focusing on securing the DHCP process, DHCP snooping safeguards the integrity of the IP addressing scheme in the network.