Final Exam: Progression: Field Tech III - IV Final questions with correct answers

The open system interconnection reference model (OSI/R) Network layer serves which primary function? 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 internal protocol (IP) address? Answer Router The network layer must do what to a recieved frame, 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 data link layer