Part 6: The IP protocol (and UDP) are called "connectionless" and "unreliable." Describe what those two words mean in the context of data communications.

Part 7: What is an Ethernet collision? Explain the process by which Ethernet recovers from a collision.

Part 8: Explain how RAID can protect against disk hardware failure. (You need about a paragraph of detail; a single sentence will not do.)

Part 9: Explain how collisions are avoided in modern Ethernet network design. (You need about a paragraph of detail; a single sentence will not do.)

Part 10: Explain how an Ethernet switch determines to which port to forward an incoming packet. Your answer must cover both the case of a destination that has previously made a transmission and one that has not.