CCNA 2 Final Exam Quiz

The given exhibit does not provide any information about the network topology or the routing protocols being used. Therefore, it is not possible to determine the exact path that traffic from the 172.16.1.0/24 network will take to reach the 10.0.0.0/24 network. However, the answer states that the traffic will be load balanced between ADC and ABC, which means that the traffic will be distributed between these two paths.

Adding the command "ip route 192.168.2.0 255.255.255.0 S0/0/0" to router R1 establishes a static route. A static route is a manually configured route that specifies the next-hop IP address or exit interface for a specific network. In this case, the command specifies that any traffic destined for the network 192.168.2.0 with a subnet mask of 255.255.255.0 should be forwarded out of the S0/0/0 interface of router R1. This allows the router to know how to reach the specified network and forward traffic accordingly.

To troubleshoot the problem of R3 and R1 not establishing a neighbor adjacency, the network administrator should check the hello and dead intervals between the routers. The hello interval determines how often OSPF routers send hello packets to discover and establish neighbor adjacencies. The dead interval is the time duration after which a router considers a neighbor to be unreachable if it does not receive any hello packets. By checking and adjusting these intervals, the network administrator can ensure that the routers are sending and receiving hello packets at the correct frequency, allowing them to establish a neighbor adjacency.

After the IOS loads from flash, the next step in the router boot sequence is to locate and load the startup-config file from NVRAM. The startup-config file contains the configuration settings for the router, including interface configurations, routing protocols, and other parameters. Loading the startup-config file allows the router to apply the previously saved configuration and restore the router to its previous state.

The route with the lowest administrative distance will be installed in the routing table. In this case, all the routes have the same prefix length (24) and the same metric value (120), but they have different administrative distances. The route with the lowest administrative distance is [120/1] via 192.168.100.1, so it will be installed in the routing table.

The correct answer is R1(config-router)# network 172.16.0.0 0.0.31.255 area 0. This command is used to advertise the entire range of addresses included in the 172.16.0.0/19 network in area 0. The network command is used in OSPF configuration to specify which networks should be advertised by the router. In this case, the 0.0.31.255 wildcard mask is used to include all addresses within the 172.16.0.0/19 network.

The possible cause of the problem is that the routers are configured with different versions of RIP. RIP version 1 and RIP version 2 are not compatible with each other. If R1 and R2 are using different versions of RIP, they will not be able to exchange routing information properly, leading to the inability to ping devices on the 192.168.2.1 network.

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Before two routers can use OSPF to form a neighbor adjacency, they must first agree on the network type. This is important because OSPF supports different network types such as broadcast, point-to-point, and non-broadcast multi-access networks, and the routers need to be configured with the same network type to establish adjacency. Additionally, the routers must use the same dead interval, which is the time period that OSPF waits before declaring a neighbor as dead. This ensures that both routers have the same timing for detecting and responding to neighbor failures.

The highlighted output indicates that automatic summarization is disabled.

The answer is "S 192.168.168.0/24 [1/0] via 192.168.200.1" because it has the lowest administrative distance (1), indicating that it is a directly connected route. Administrative distance is a measure of the trustworthiness of the source of the routing information, with lower values being more trustworthy. In this case, the static and dynamic routes have higher administrative distances, so the directly connected route will be preferred.

The first statement is true because routers decrement the Time to Live (TTL) field in the IP header of a packet by one to ensure that the packet does not loop indefinitely in the network.

The second statement is false because routers do not change the source IP address of a packet. The source IP remains the same throughout the routing process.

The third statement is true because routers maintain the same source and destination IP addresses. They only modify other fields in the IP header, such as the TTL field.

The fourth statement is true because routers change the source physical address (MAC address) to the physical address of the exit interface. This is necessary for the packet to be correctly delivered to the next hop.

The fifth statement is false because routers do not change the destination IP address of a packet. The destination IP remains the same throughout the routing process.

The network administrator will need to enter both the Cisco001 password and the Cisco789 passwords to make the connection and the necessary configuration changes.

The command "Router_A(config-router)# default-information originate" will save the administrator the time and trouble of configuring the default route on Router_B and all the other routers in the OSPF area. This command allows Router_A to advertise the default route to the other routers in the OSPF area, ensuring that they all have knowledge of the default route without needing to individually configure it on each router.

The OSPF LSU (Link State Update) packet is used to announce new OSPF information and to reply to certain types of requests. This packet is responsible for distributing link-state information throughout the OSPF network. It is used to update the OSPF database of neighboring routers with new or modified information about the network topology. Additionally, the LSU packet can be used to respond to requests for information from other routers in the network.

The network administrator should use RIPv2 to configure the single router to load balance the traffic over unequal cost paths. RIPv2 supports the use of multiple paths with different costs, allowing for load balancing. EIGRP and OSPF also support load balancing, but RIPv2 is a simpler and less resource-intensive option. RIPv1 does not support load balancing at all.

The exhibit shows a network diagram with various router commands. The correct answer states that the missing information for Blank 1 is the command "show ip route", which means that this command needs to be entered to obtain the desired output. The missing information for Blank 2 is the number 120, indicating that this specific value is relevant to the output. Lastly, the missing information for Blank 3 is the letter C, suggesting that this letter represents a specific type of route in the output.

The correct answer is to configure EIGRP on the Paris router, three commands are needed. The first command is "Paris(config)# router eigrp 100" which enters the EIGRP configuration mode and specifies the autonomous system number as 100. The second command is "Paris(config-router)# network 192.168.7.0" which specifies the network address of 192.168.7.0 to be included in the EIGRP routing process. The third command is "Paris(config-router)# network 192.168.8.0" which specifies the network address of 192.168.8.0 to be included in the EIGRP routing process.

The given correct answer states that "All routes are stable" and "The show ip eigrp topology command has been run on R1". This can be inferred from the exhibited output, which shows that all routes have a "U" flag indicating that they are stable, and the command "show ip eigrp topology" has been executed on router R1 to display the EIGRP topology information.

From the exhibited output of the "show ip protocol" command on R1, it can be determined that the FastEthernet0/0 interface is down.

The two pings that will fail are from R1 to 192.168.3.1 and from R3 to 192.168.1.1. This can be determined by analyzing the output of the "show ip route" command for each router. From R1, there is no specific route for the 192.168.3.0/24 network, so the ping to 192.168.3.1 will fail. From R3, there is no specific route for the 192.168.1.0/24 network, so the ping to 192.168.1.1 will also fail.

The network administrator can configure two static routes on Router1 to enable Host A to reach network 172.16.0.0. The first static route is "ip route 172.16.0.0 255.255.0.0 S0/0", which specifies that any traffic destined for the 172.16.0.0 network should be sent out of the S0/0 interface. The second static route is "ip route 172.16.0.0 255.255.0.0 192.168.0.2", which specifies that any traffic destined for the 172.16.0.0 network should be forwarded to the next-hop IP address 192.168.0.2. These two static routes will allow Router1 to properly route traffic to the 172.16.0.0 network.