Which parameter can be tuned to affect the selection of a static route as a backup. when a dynamic protocol is also being used？（）A、link bandwidthB、hop countC、link costD、administrative distanceE、link delay
Which parameter can be tuned to affect the selection of a static route as a backup. when a dynamic protocol is also being used？（）
- A、link bandwidth
- B、hop count
- C、link cost
- D、administrative distance
- E、link delay
相关考题：
Which of the following options lists the steps in PPP session establishment in the correct order?() A. Optional authentication phase, link establishment phase, network layer protocol phase.B. Network layer protocol phase, link establishment phase, optional authentication phase.C. Network layer protocol phase, optional authentication phase, link establishment phase.D. Link establishment phase, network layer protocol phase, optional authentication phase.E. Link establishment phase, optional authentication phase, network layer protocol phase.F. Optional authentication phase, network layer protocol phase, link establishment phase.
Which statem ent is true about EBGP?() A. An internal routing protocol can be used to reach an EBGP neighbor.B. The next hop does not change when BGP updates are exchanged between EBGP neighbors.C. EBGP requires a full mesh.D. A static route can be used to form an adjacency between neighbors.
Which parameter can be tuned to affect the selection of a static route as a backup.when a dynamic protocol is also being used?() A.link bandwidthB.hop countC.link costD.administrative distanceE.link delay
Which parameter can be tuned to affect the selection of a static route as a backup. when a dynamic protocol is also being used?() A.link bandwidthB.hop countC.link costD.administrative distanceE.link delay
Open Shortest Path First (OSPF) was designed as an （ ） gateway protocol, for use in an autonomous system such as a local area network (LAN). It implements Dijkstra's algorithm, also known as the （ ） path first algorithm. As a link-state routing protocol it was based on the link-state algorithm developed for the ARPANET in 1980 and the IS-IS routing protocol. OSPF was first standardised in 1989 as RFC 1131, which is now known as OSPF version 1.Routing protocols like OSPF calculate the shortest route to a destination through the network based on an algorithm. The first routing protocol that was widely implemented, the （请作答此空）, calculated the shortest route based on hops, that is the number of routers that an IP packet had to traverse to reach the destination host. RIP successfully implemented dynamic routing, where routing tables change if the network topology changes. But RIP did not adapt its routing according to changing network conditions, such as data-transfer rate. Demand grew for a dynamic routing protocol that could calculate the fastest route to a destination. （ ） was developed so that the shortest path through a network was calculated based on the cost of the route, taking into account bandwidth, delay and load. Therefore OSPF undertakes route cost calculation on the basis of link-cost parameters, which can be weighted by the administrator. OSPF was quickly adopted because it became known for reliably calculating routes through large and complex local area networks.As a link state routing protocol, OSPF maintains link state （ ）, which are really network topology maps, on every router on which it is implemented. The state of a given route in the network is the cost, and OSPF algorithm allows every router to calculate the cost of the routes to any given reachable destination. Unless the administrator has made a configuration, the link cost of a path connected to a router is determined by the bit rate (1 Gbit/s, 10 Gbit/s, etc) of the interface. A router interface with OSPF will then advertise its link cost to neighbouring routers through multicast, known as the hello procedure. All routers with OSPF implementation keep sending hello packets, and thus changes in the cost of their links become known to neighbouring routers. The information about the cost of a link, that is the speed of a point to point connection between two routers, is then cascaded through the network because OSPF routers advertise the information they receive from one neighbouring router to all other neighbouring routers. This process of flooding link state information through the network is known as synchronisation. Based on this information, all routers with OSPF implementation continuously update their link state databases with information about the network topology and adjust their routing tables.OSPF has become a popular dynamic routing protocol. Other commonly used dynamic routing protocols are the RIP and the Border Gateway Protocol (BGP). Today routers support at least one interior gateway protocol to advertise their routing tables within a local area network. Frequently implemented interior gateway protocols besides OSPF are RIP, IS-IS, and the proprietary Interior Gateway Routing Protocol (IGRP) by Cisco.A.OSPFB.RIPC.IS-ISD.EIGRP
One of the most widely used routing protocols in IP networks is the Routing Information Protocol（RIP）。RIP is the canonical example of a routing protocol built on the（请作答此空）algorithm.Routing protocols in internetworks differ slightly from the idealized graph model.In an internetwork,the goal of the routers to forward packets to various（ ）.Routers running RIP send their advertisement about cost every（ ）seconds.A router also sends an update message whenever an update from another router causes it to change its routing table.It is possible to use a range of different metrics or costs for the links in a routing protocol.RIP takes the simplest approach,with all link costs being equal（ ）。Thus it always tries to find the minimum hop route.Valid distances are 1 through（ ）。This also limits RIP to running on fairly small networks.A.distance vectorB.link stateC.floodingD.minimum spanning tree
What can be used to maintain the voice quality on a link by limiting the number of calls that can be active at any given time？（）A、 Call Management Link AgentB、 Traffic policingC、 Call Admission ControlD、 QoS Link Congestion ManagementE、 Oversubscription Link Detection
Which statement is true when using a Cisco Wireless Mesh Networking Solution？（）A、The backhaul link is dynamic 1 to 54Mb/s.B、The backhaul link is typically a fixed value.C、The backhaul link uses DAS antennas.D、The backhaul link uses antenna multiplexing.E、The backhaul link does not rely on fade margin.
Switch R1 has been configured with DTP using the desirable option. Which statement describes Dynamic Trunking Protocol （DTP） desirable mode？（）A、 The interface actively attempts to convert the link to a trunk link.B、 The interface is put into permanent trunking mode but prevented from generating DTP frames. C、 The interface is put into permanent trunking mode and negotiates to convert the link into a trunk link.D、 The interface is put into a passive mode， waiting to convert the link to a trunk link. E、 None of the other alternatives apply
What statement is true？（）A、Link Control Protocol（LCP） is used for basic PPP link setup and operationB、Link Control Protocol（LCP） is used for denying PPP connections to unauthorized devices.C、Link Control Protocol（LCP） for PPP is synonymous to ARP for Ethernet.D、None of the above
Which parameter can be tuned to affect the selection of a static route as a backup.when a dynamic protocol is also being used?（）A、link bandwidthB、hop countC、link costD、administrative distance
Open Shortes t Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF). Which two statements best describe the OSPF link - state routing pro tocol?（）A、OSPF sends updates every 10 secondsB、OSPF sends triggered updates when a network change occursC、When a link state is changed, the router that detected the change creates a link - state advertisement (LSA) and propagates it to all OSPF devices using the 224.0.0.6 multicast addressD、OSPF sends summaries of individual link- state entries every 30 minutes to ensure LSDB synchronization
Which of the following characteristics are common to both RIPv2 and RIPng？（Choose all thatapply.）（）A、Link-local address used for next-hop addressesB、Interface can be added to RIP routing process in either interface configuration mode or in routerconfiguration modeC、Uses a multicast to send routing updatesD、Use hop count as a metricE、Distance-vector routing protocolF、Maximum hop count is 15 with 16 being "unreachable"
Which parameter can be tuned to affect the selection of a static route as a backup.when a dynamic protocol is also being used?（）A、link bandwidthB、hop countC、link costD、administrative distanceE、link delay
Which of the following events can NOT be tuned via router configuration to provide for faster convergencefollowing a link failure？（）A、Failure detectionB、Failure reportingC、IGP LSP/LSA originatioD、Per-hop flooding time of new link stateE、Number of hops that need to be notified of new link state
Which pairing reflects a correct protocol-and-metric relationship?（）A、OSPF and mumber of hops and reliabilityB、EIGRP and link costC、IS-IS and delay and reliabilityD、RIPv2 and number of hops
Which mechanism can you use to achieve sub-second failover for link failure detection when a switched Ethernet media is used and loss of signal is not supported by the link provider？（）A、OSPF standard hellosB、Cisco Discovery Protocol link detectionC、Bidirectional Forwarding DetectionD、Fast Link PulseE、autonegotiation
单选题Which of the following events can NOT be tuned via router configuration to provide for faster convergencefollowing a link failure？（）AFailure detectionBFailure reportingCIGP LSP/LSA originatioDPer-hop flooding time of new link stateENumber of hops that need to be notified of new link state
单选题Which statement is true when using a Cisco Wireless Mesh Networking Solution？（）AThe backhaul link is dynamic 1 to 54Mb/s.BThe backhaul link is typically a fixed value.CThe backhaul link uses DAS antennas.DThe backhaul link uses antenna multiplexing.EThe backhaul link does not rely on fade margin.
单选题Switch R1 has been configured with DTP using the desirable option. Which statement describes Dynamic Trunking Protocol （DTP） desirable mode？（）A The interface actively attempts to convert the link to a trunk link.B The interface is put into permanent trunking mode but prevented from generating DTP frames. C The interface is put into permanent trunking mode and negotiates to convert the link into a trunk link.D The interface is put into a passive mode， waiting to convert the link to a trunk link. E None of the other alternatives apply
单选题Which parameter can be tuned to affect the selection of a static route as a backup.when a dynamic protocol is also being used?（）Alink bandwidthBhop countClink costDadministrative distance
单选题Which mechanism can you use to achieve sub-second failover for link failure detection when a switched Ethernet media is used and loss of signal is not supported by the link provider？（）AOSPF standard hellosBCisco Discovery Protocol link detectionCBidirectional Forwarding DetectionDFast Link PulseEautonegotiation
单选题Which parameter can be tuned to affect the selection of a static route as a backup.when a dynamic protocol is also being used?（）Alink bandwidthBhop countClink costDadministrative distanceElink delay
单选题Which parameter can be tuned to affect the selection of a static route as a backup. when a dynamic protocol is also being used？（）Alink bandwidthBhop countClink costDadministrative distanceElink delay
单选题Which statem ent is true about EBGP?（）AAn internal routing protocol can be used to reach an EBGP neighbor.BThe next hop does not change when BGP updates are exchanged between EBGP neighbors.CEBGP requires a full mesh.DA static route can be used to form an adjacency between neighbors.
单选题What can be used to maintain the voice quality on a link by limiting the number of calls that can be active at any given time？（）A Call Management Link AgentB Traffic policingC Call Admission ControlD QoS Link Congestion ManagementE Oversubscription Link Detection
单选题Which pairing reflects a correct protocol-and-metric relationship?（）AOSPF and mumber of hops and reliabilityBEIGRP and link costCIS-IS and delay and reliabilityDRIPv2 and number of hops