CCNA Quiz Chapter 6 Discovery 3

1. What attribute is associated with link-state routing protocols?

>> shortest-path first calculations

1. Refer to the exhibit. If OSPF is configured in the network using the costs shown in the table, which path will a packet take from H1 to H2?

>> R1-R3-R4-R5

1. Refer to the exhibit. The router learned three different routes to the subnet 192.168.1.0. what action will the router take to forward a packet to the destination of 192.168.1.143?

>> the packet will be forwarded to the next hop of 192.168.4.2

1. Refer to the exhibit, which shows partial output from the show running-config command on Router A. With all interfaces on Router A active, the network administrator modifies the configuration of the router by issuing the command no router-id 18.20.20.172. the configuration is then saved and the router restarted. What will be the router ID for Router A when OSPF is reestablished?

>> 192.168.70.18

1. Refer to the exhibit. Router A, router B, and router C in the diagram are running OSPF on their Ethernet interfaces. Router D was just added to the network. Routers are configured with the loopback interfaces (Lo 0) that are shown in the exhibit. What happens to the OSPF DR/ BDR after Router D is added to the network?

>> there is no change in the DR or BDR until either current DR or BDR goes down

1. Refer to the exhibit. What network commands will configure router A to properly advertise the OSPF routes?

>>           network 192.168.10.64 0.0.0.63 area 0
Network 192.168.10.192 0.0.0.3 area 0

1. Which two statements are true regarding the cost calculation for a link in OSPF?

>> it can be set with the ip ospf cost command >> it may be calculated using the formula reference bandwidth/ bandwidth

1. Refer to the exhibit. OSPF routing protocol is configured for the routers, however, router A is not receiving any OSPF routes from the other routers. Based on the information in the exhibit, what is the problem with the router A configuration?

>> one of the network statements is wrong

1. Refer to the exhibit. A network administrator is implementing OSPF between headquarters and multiple branch offices. All branch offices are connected to the Internet through the headquarter’s router. What effect will the commands entered on the headquarter’s router have?

>> the default route will be propogated to all routers participating in the same OSPF area.

1. For what two reasons would a network administrator choose to enable authentication for OSPF exchanges?

>>to prevent routing information from being falsified >> to keep routing information being captured