Assuming that"client1" and "client2" are directly-connected networks, what is the result of executing the following BGP export policy?

AnNokia7750 SR receives a route from an eBGP peer without a MED. What MED value is sent to iBGP peers?
A confederated AS is comprised of three members. One member is comprised of 4 routers, while the other two members are comprised of 3 routers each. Assuming member ASs are fully meshed and use full mesh iBGP, what is the required number of BGP sessions within the confederation?
What is the function of the Cluster_List attribute?