$1)$ Consider sending an IP datagram from Host E to Host F$.$ In the Ethernet frame containing the IP datagram, what are the source and destination IP and MAC addresses?

$2)$ Suppose E would like to send an IP datagram to B$,$ and assume that E$$s ARP cache does not contain B$$s MAC address. In the Ethernet frame $($containing the IP datagram destined to B$)$ that is delivered to router R$1,$ what are the source and destination IP and MAC addresses?