CORRECT TEXT
The task is to identify the fault(s) and correct the router configuration(s) to provide full connectivity between the routers.

Answer: See the explanation

Explanation:
On the MGT Router:
Config t
Router eigrp 12
Network 192.168.77.0
Note: With this question, the topology and IP addressing is subject to change but the main
problem is that one of the networks listed on the central router under the EIGRP process is
missing. Issue a “show ip int brief” and ensure that all of the needed networks are included in the
networks listed under the EIGRP process.