What is being configured when a VLAN 1 interface is assigned an IP address and brought up with no shutdown?

What is being configured when a VLAN 1 interface is assigned an IP address and brought up with no shutdown?

• A. Telnet access
• B. SVI
• C. password encryption
• D. physical switchport access

Answer: (B)

Configuring an IP address on a VLAN interface and bringing it up creates a Switch Virtual Interface, or SVI. An SVI is a logical Layer 3 interface tied to a specific VLAN, used to provide a management IP for the switch and, on multilayer switches, to route between VLANs. By assigning an IP to the VLAN 1 interface, you give the switch a reachable address for management traffic (SSH, Telnet, or ping), and bringing the interface up with no shutdown activates that IP so it can respond. This is distinct from configuring a physical switchport as an access port, which is a data-plane setting for user traffic, and from password encryption or other unrelated features.

Configuring an IP address on a VLAN interface and bringing it up creates a Switch Virtual Interface, or SVI. An SVI is a logical Layer 3 interface tied to a specific VLAN, used to provide a management IP for the switch and, on multilayer switches, to route between VLANs. By assigning an IP to the VLAN 1 interface, you give the switch a reachable address for management traffic (SSH, Telnet, or ping), and bringing the interface up with no shutdown activates that IP so it can respond. This is distinct from configuring a physical switchport as an access port, which is a data-plane setting for user traffic, and from password encryption or other unrelated features.