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Refer lo lhe exhibit. The Customer Edge rouler wants to use AS 100 as the preferred ISP for all external routes and ISP-2 as a backup. 

After this configuration, all the backup routes have disappeared from the BGP table on the Customer Edge router. Which set of configurations resolves the issue on the Customer Edge router? 

A :

B :

C :

D :

Refer to the exhibit. The DHCP client is unable to receive an IP address from the DHCP server RouterB is

configured as follows:

Interface fastethernet 0/0

description Client DHCP ID 394482431

Ip address 172 31 11 255 255.255 0

!

ip route 172.16.1.0 255 255 255.0 10.1.1.2

Which command is required on the fastethernet 0/0 interface of RouterB to resolve this issue?

Which action resolves the authentication problem? 

Refer to the exhibit.

A network administrator is discovering a Cisco Catalyst 9300 and a Cisco WLC 3504 in Cisco DNA Center. The Catalyst 9300 is added successfully However the WLC is showing [ error "uncontactable" when the administrator tries to add it in Cisco DNA Center. Which action discovers WLC in Cisco DNA Center successfully?