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1-6. Suppose the assigned (IPv4) network address is 153.78.0.0 and it is required to have 6 subnetworks each having 250 hosts. Identify the class of the network address and division of the addresses for the sub-network and hosts. Two addresses must be set aside for the server node. 1-7. A cluster of 32 computers is being set up. The server node has two Ethernet connections, one to the Internet and one to the cluster. The Internet IP address is 216.123.0.0. Devise an IP address assignment for the cluster using C class format. 1.8. A company is proposing an IPv8 format using 512 bits. Do you think this is justified? Explain. 1-9. It is possible to construct a system physically that is a hybrid of a message-passing multicomputer and a shared memory multiprocessor. Write a report on how this might be achieved and its relative advantages over a pure message-passing system and a pure shared memory system