Refer to the exhibit. A network engineer is implementing QoS services. Which two statements about the qos- group keyword on Cisco IOS XR are true? (Choose two.)

Refer to the exhibit.

A network operator needs to shut down interface Gi0/0/0/2 for maintenance. What occurs to the interface states of Gi0/0/0/0 and Gi0/0/0/1?

Refer to the exhibit.

An engineer is updating this network to meet these conditions:
* Area 10 will receive inter-area routes and support mutual redistribution of external routes with the extranet.
* The ::/0 route is prohibited in Area 10.
* Area 11 will receive only the ::/0 route from the ABR.
* External route redistribution is not supported in Area 11.
* The ABR in Area 11 will advertise no interarea routes.
Which two configurations must be performed to meet the requirements? (Choose two.)

A regional MPLS VPN provider operates m two regions and wants to provide MPLS L 3VPN service for a customer with two sites in these separate locations. The VPN provider approaches another organization to provide backbone carrier services so that the provider can connect to these two locations.
Which statement about this scenario is true?

Refer to the exhibit.

Which type of DDoS attack will be mitigated by this configuration?