What is the effect of entering the switchport mode access configuration command on a switch?

What is the effect of entering the switchport mode access configuration command on a switch?

• A. It enables VLAN trunking on the interface
• B. It disables DTP on a non-trunking interface
• C. It allows the interface to receive management traffic
• D. It restricts the interface to a single IP address

Answer: (B)

Entering the switchport mode access configuration command on a switch specifically puts the switch port into access mode. This means that it will be configured as a non-trunking interface, which is primarily intended to connect to end devices such as computers or printers rather than connecting to other switches or network devices. By setting the port to access mode, Dynamic Trunking Protocol (DTP), which is responsible for negotiating trunk links dynamically, is effectively disabled. This helps to ensure that the port will not try to negotiate a trunking link, thereby preventing the possibility of inadvertently allowing multiple VLANs to be carried across that port. As a result, any traffic that comes in and goes out of that access port will belong to a single VLAN, making it simpler to manage and secure. This versatility in controlling whether a port can function as a trunk or an access port is crucial in network design for ensuring that appropriate segregation of traffic occurs in a LAN environment.

Entering the switchport mode access configuration command on a switch specifically puts the switch port into access mode. This means that it will be configured as a non-trunking interface, which is primarily intended to connect to end devices such as computers or printers rather than connecting to other switches or network devices.

By setting the port to access mode, Dynamic Trunking Protocol (DTP), which is responsible for negotiating trunk links dynamically, is effectively disabled. This helps to ensure that the port will not try to negotiate a trunking link, thereby preventing the possibility of inadvertently allowing multiple VLANs to be carried across that port. As a result, any traffic that comes in and goes out of that access port will belong to a single VLAN, making it simpler to manage and secure.

This versatility in controlling whether a port can function as a trunk or an access port is crucial in network design for ensuring that appropriate segregation of traffic occurs in a LAN environment.