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ccna 200-301 exam cost philippines.NeighborAdvertisement (NA) A message defined and used by IPv6's Neighbor Discovery Protocol (NDP) to declare the MAC address of a host to other neighbors. Sometimes such messages are sent in response to previously received Neighbor Request and Announcement (NS) messages. Neighbor Discovery Protocol (NDP) A protocol in the IPv6 protocol group that is used to discover and exchange device (neighbor) information within the same subnet. In particular, it replaces the ARP protocol of IPv4.Neighbor Solicitation (NS) A message defined by the IPv6A Neighbor Discovery Protocol (NDP) to request a neighbor to respond with a NeighborAdvertisement, which lists the neighbor's tellMAC address. Neighbor Table A list of the status of a router's reachable neighbors in OSPF and EIGRP.NetFlowNetFlow allows monitoring of the network's IP traffic. This information can be used for computing, charging, capacity planning, security, and overall network monitoring.Network LSA (NetworkLSA) In OSPF, the type of LSA created by a Designated Router (DR) for the network (subnet) for which that DR is helping to distribute LSAs.NMS Network Management Workstations are devices that run network management software to manage network devices. SNMA often serves as the network management protocol used between the NMS and the managed devices.(nonbroadcast multiaccess, N non-BM broad A broadcast) A characteristic of the multiple 2 way layer network access type that means that in a network with more than two connected devices, the network does not allow broadcast frames to be sent to all devices in the network.NVRAM non-volatile RAM. a type of random access memory (RAM) that retains its contents after a power failure.The OID object identifier is used to uniquely describe a MIB variable in an SNMP database. It is a numeric string that uniquely identifies the variable and describes where in the MIB tree structure the variable exists.Open Shortest Path First (OSPF) A common link state IGP. using a link state database and a shortest path first (SPF) algorithm to calculate the best route to each known subnet.