Remote Management SVI Setup — Switch CLI

You racked a new managed access switch in the Brightwater Outfitters distribution annex. The NOC lives on 10.42.10.0/24; this switch belongs to management VLAN 90 on 10.42.90.0/24. Give the switch an in-band management identity so the NOC can reach it remotely, then make it survive a reboot. Type ? at any prompt for available commands.

• 1. This is a Layer 2 access switch with no routing table. Why does its management interface still need a default gateway?
  To create the management VLAN on the switch. So management traffic can reach hosts on other subnets (e.g., the NOC). To enable Spanning Tree Protocol on the uplink. To convert access ports into trunk ports.
• 2. Type the command that writes the active configuration to non-volatile memory so it persists across a reboot.
• 3. On this switch, what is interface vlan 90?
  A single access port assigned to VLAN 90. A trunk link carrying VLAN 90 traffic. A switch virtual interface (SVI) giving VLAN 90 a Layer 3 IP for management. The native VLAN of every trunk.