Progression: Field Tech III - IV Conventional questions with correct answers

The Open Systems Interconnection reference model (OSI/RM) Network Layer serves which primary purpose? Answer It uses Layer 3 addresses to create multiple routed networks. The address 68.56.189.17 belongs to which Internet protocol (IP) class? Answer Class A What happens to a datagram sent by a higher level protocol to a 127.x.y.z address? Answer The datagram loops back inside the host and never leaves the network interface card (NIC). Which device evaluates and acts upon a packet's Internet protocol (IP) address? Answer Router. The Network Layer must do what to a received frame first, in order to determine the route over which it will forward the datagram to the next network? Answer Decapsulate the packet. What network information can be determined from a logical Internet protocol (IP) address? Answer The host portion and network portion. The physical address of a device is processed by which layer of the Open Systems Interconnection reference model (OSI/RM)? Answer The Physical Layer.