| A | B |
|---|
| reliable | error detection and correction |
| connectivity | incorporate a variety of hardware and software in such a way as they can work together |
| ease of use | users need to have no concern for or knowledge of the network's structure or implementation |
| easy to modify | a network must allow itself to evolve and adapt as needs change or expand, or as new technologies emerge |
| easy to implement | a network must follow industry-wide networking standards, and it must allow for a variety of configurations that meet network users' needs |
| router | connects two or more networks |
| examine packets | an important function of routers |
| routing | IGRP is this type of protocol |
| routed | IP and IPX are this type of protocol |
| transport layer | the network layer provides best effort end-to-end packet delivery services to this user |
| path determination | To send packets from the source to the destination, this needs to occur at the network layer |
| protocols | Routers, through the use of these, make path decisions based on routing tables |
| source | In IP networks, the router forwards packets from this network to the destination network based on the IP routing table |
| destination | In IP networks, the router forwards packets from the source network to this network based on the IP routing table |
| packet switching | This means it accepts the packet on one interface and forwards it to the next hop interface on the best path to the packet's destination. |
| routing tables | These store information on possible destinations and how to reach each of the destinations. |
| network | Routing tables need to store only the this portion of IP addresses for routing. |
| next hop | Entries in the routing tables contain an IP address of the ____ along the route to the destination. |
| communicate | Routers must _____ with each other in order to build tables. |
| seven | the number of routing metrics IGRP can use |
| accurate | it is important that routing tables be this |
| metric | The protocol generates a value called a _____, for each path through the network. |
| smaller | Typically, the _____ the metric, the better the path. |
| RIP | uses only one metric |
| hop count | the number of routers a packet must go through to reach a destination |
| bandwidth | the data capacity of a link |
| delay | the length of time required to move a packet from source to destination |
| load | the amount of activity on a network resource, such as a router or link |
| reliability | the error rate of each network link |
| ticks | the delay on a data link using IBM PC clock ticks (approx. 55 milliseconds) |
| cost | the arbitrary value that is assigned by the network administrator |
| host portion | A network address consists of a network portion and this. |
| network portion | This part of the network address is used to make path selections |
| enhanced | the E in EIGRP |
| Internet Protocol | IP |
| Transmission Control Protocol | TCP |
| Internetwork Packet Exchange | IPX |
| Interior Gateway Routing Protocol | IGRP |
| Open Shortest Path First | OSPF |
| Border Gateway Protocol | BGP |
| Advanced Peer-to-Peer Networking | APPN |
| Intermediate System-to-Intermediate System | ISIS |
| multiprotocol | routing protocols that support multiple independent routing protocols |
| Routing Information Protocol | RIP |
| Interior Routing Protocols | protocols that are used for routing information within networks that are under a common network administration |
| Exterior Routing Protocols | Protocols that are used to exchange routing information between networks that do not share a common administration. |
| optimal route | refers to the ability of the routing protocol to select the best route |
| robustness | performs correctly in the face of unusual or unforeseen circumstances |
| rapid convergence | the speed and ability of a group of networking devices running a specific routing protocol to agree on the topology of a network after a change in that topology |
| flexibility | should quickly and accurately adapt to a variety of network circumstances |
