What is the temporary state that switch ports always enter immediately after the boot process when Rapid PVST+ is used?

Refer to the exhibit. IPv6 is being Implemented within the enterprise. The command Ipv6 unlcast-routing is configure. Interlace GlgO/0 on R1 must be configured to provide a dynamic assignment using the assigned IPv6 block Which command accomplishes this task?
Refer to the exhibit.

Switch AccSw2 has just been added to the network along with PC2. All VLANs have been implemented on AccSw2. How must the ports on AccSw2 be configured to establish Layer 2 connectivity between PC1 and PC2?
Which alternative to password authentication Is Implemented to allow enterprise devices to log in to the corporate network?