ccna 200-301 download

ccna 200-301 download.DSL modem (DSLmodem) A device that connects to a telephone line.It uses the DSL standard to transmit and receive data from the telephone company using DSL. Data Terminal Equipment (DTE) From a Layer 1 perspective, based on the clock sent by the DCE, the DTE synchronizes its clock. From a packet switching perspective, the DTE is a device located outside the service provider's network, usually a router.usually a router.Diffusing Update Algorithm (DUAL) An aggregation algorithm used in EIGRP when a route fails and there is no feasible successor route. DUAL causes the router to send an EIGRP query message and an answer message to discover a replaceable loop-free route.DualStacks In IPv6, a mode of operation in which a host or router can run both IPv4 and IPv6.EEnhanced Interior Gateway Routing Protocol (EIGRP) An advanced version of Cisco-issued IGRP that provides superior aggregation performance and operational efficiency, opening and combining the benefits of distance vectoring protocols and link state protocols.EIGRP on Pv6 (EIGRPforIPv6,EIGRPv6) This version of EIGRP supports advertising routes for IPv6 prefixes instead of IPv4 subnets.Privileged mode (enablemode) Part of the Cisco IOSCLI, this mode enables users to use potentially destructive commands on a router or switch thatincluding the ability to subsequently enter configuration mode and reconfigure that router. encapsulation ) Places data from a higher-layer protocol behind (and in some cases between) the header of the next lower-layer protocol. For example, an IP packet may be encapsulated into the Ethernet header and tail before it is forwarded over the Ethernet.