Q: If I only redistribute OSPF into EIGRP, my OSPF network will not have visibility of network 172.16.0.0/16 and network 10.2.2.0/24. Will this be a problem?
A: This is true, potentially it will be a problem. You are told in the lab instructions that VLAN1 and network 10.2.2.0/24 are exempt from the IP connectivity testing but if you find certain connectivity is required, you will need to find a workaround.
Q: Can I use a distribute list to allow specific masks?