OSPF test Questions And Answers Rated A+ New Update Assured Satisfaction

[110/1446] What are these numbers? - 110 is the administrator distance 1446 is the cost A network associate has configured OSPF with the command: City(config-router)# network 192.168.12.64 0.0.0.63 area 0 After completing the configuration, the associate discovers that not all the interfaces are participating in OSPF. Which three of the interfaces shown in the exhibit will participate in OSPF according to this configuration statement? - FastEthernet0 /1 Serial0/0 Serial0/1.102 Assuming that the routers have default interface OSPF priorities and no configured loopback interfaces. What two roles will RouterB play on each network segment? - DR for network 192.168.1.200 BDR for network 192.168.1.204 Calculates the best path to each destination network - SPF algorithm Creates and maintains neighbor adjacencies - Hello packet Description of an interface and its relationship to other routers - State of the link Given the output for this command, if the router id has not been manually set what router id will ospf use for this router D? - 174.16.5.1 Identify the true statements regarding OSPF hello and dead timers on Ethernet segments - Have to be the same intervals on all routers The default hello time is 10 secondsThe default dead time is 40 seconds The dead timer dynamically changes If a Cisco router learns two routes to the same destination, one through OSPF and one through EIGRP, which route will be added to the routing table if default values are used? - EIGRP In a multi area OSPF network an interarea summarized route is configured and advertised from a ____? - ABR OSPF routing uses the concept of areas. What are the characteristics of OSPF areas? - Area 0 is called the backbone area Multiple OSPF areas must connect to area 0 All routers within an area have identical link state databases Router 1 is configure properly for a single area OSPF and router 2 has been recently installed on the network. Which set of commands is required to configure a single area ospf for the networks that are connected to router 2. - Know how to advertise networks Basic configuration of the router Router A is configured for OSPF using those commands. Neighboring router B is to be configured with OSPF. What must be true if the router are to become adjacent? - Router B must use area 0 in its configuration The interfaces of all routers are configured for ospf area 0. Router 3 can ping router 1 but the two routers are unable to establish a neighbor adjacency. What should the network admin do to troubleshoot the problem? - Check the hello and dead intervals between the routers The internetwork infrastructure of company XYZ consist of a single OSPF area as shown in the graphic. There is concern that a lack of router resources is impending internetwork performance. As part of examining the router resources, OSPF designated routers need to be known. All router OSPF priorities are at the default and the router ids are shown with each router. Which routes are likely to have been elected as DR? - Corp 4 Branch 2The routers in the exhibit are using default OSPF configuration settings to advertise all attached networks. If all of the routers start at the same time, what will be the result of the DR and BDR elections for this single area OSPF network? - Router A will be DR for 10.4.0.0/16 and HQ will be BDR for 10.4.0.0/16 This packet is send when a router notices a change in a link state - LSU This packet is sent by the slave router if the database description has more up to date link state entries - LSR This packet is sent to compare the local topology to that send by another router - DBD Triggered when a topology change has occurred - LSU Two neighboring routers are configured for OSPF but they have different hello and dead intervals. What will happen? - They will fail to become adjacent What are possible reasons R1 can establish an OSPF neighbor relationship with R3, according to the following theoretical graphic? - The hello and dead interval timers are not configured with the same value R1 and R3 have been configured in different areas What command is used to display the contents of the OSPF topological database that provides the router id and process id? - Show ip ospf database Which characteristics are representative of a link state routing protocol? - Used when fast convergence is a priority on the network Provides common view of an entire topology Utilizes event trigger updatesWhich interface configuration command might you use as an alternative to using the bandwidth command and achieve the same goal when implementing OSPF? - Cost Which of the following algorithm does OSPF use to determine the best path? - Dijkstra's algorithm Which of the following statements below best describes the process identifier that's used to run OSPF on a router? - It is locally significant It is needed to identify a unique instance of OSPF Which of the following statements is true in regards to the differences between ospfv2 and v3? - OSPFv3 is configured directly on the interface OSPFv3 uses the link local address as the source address Which two statement describe the use of OSPF DR/BDR elections? - Elections are sometimes required in Non-broadcast multi-access networks Elections take place in broadcast, multi-access networks Which two statements are true about the loopback address that is configured on router B? - It provides stability for the OSPF process on RouterB. It specifies that the router ID for RouterB should be 10.0.0.1. Which type of routing table entry would indicate that an external route was redistributed into the multi area ospf process? - O E2 Why are two OSPF designated routers identified on CORE router? - Core router is connected to more than one multi-access network Why would you use the bandwidth command when configuring an interface where OSPF routing is used? - To ensure that OSPF uses a suitable value when calculating its metric