CCNA Rounting Protocols chapter 2 exam

2

Refer to the exhibit. Which is the best way for PC A and PC B to successfully communicate with sites on the Internet? Correct Response Your Response Configure a static route from R1 to ISP and a dynamic route from ISP to R1. Configure a default route from R1 to ISP and a static route from ISP to R1. Configure a dynamic route from R1 to ISP and a static route from ISP to R1. Configure a routing protocol between R1 and ISP and advertise all the routes. Two routes have to be created: a default route in R1 to reach ISP and a static route in ISP to reach R1 for the return traffic. This is a best solution once PC A and PC B belong to stub networks. Moreover, static routing consumes less bandwidth than dynamic routing.

This item references content from the following areas: Routing Protocols 2.1.1 Static Routing

5

Which type of static route that is configured on a router uses only the exit interface? Correct Response Your Response recursive static route directly connected static route fully specified static route default static route When only the exit interface is used, the route is a directly connected static route. When the next-hop IP address is used, the route is a recursive static route. When both are used, it is a fully specified static route.

This item references content from the following areas: Routing Protocols 2.2.1 Configure IPv4 Static Routes

10

Refer to the exhibit. The network administrator needs to configure a default route on the Border router. Which command would the administrator use to configure a default route that will require the least amount of router processing when forwarding packets? Correct Response Your Response Border(config)# ip route 0.0.0.0 0.0.0.0 198.133.219.5 Border(config)# ip route 0.0.0.0 0.0.0.0 198.133.219.6 Border(config)# ip route 0.0.0.0 0.0.0.0 s0/0/1 Border(config)# ip route 0.0.0.0 0.0.0.0 s0/0/0 The default route configured with the next-hop option requires a recursive lookup.

This item references content from the following areas: Routing Protocols 2.2.2 Configure IPv4 Default Routes

11

Refer to the exhibit. What command would be used to configure a static route on R1 so that traffic from both LANs can reach the 2001:db8:1:4::/64 remote network? Correct Response Your Response ipv6 route ::/0 serial0/0/0 ipv6 route 2001:db8:1:4::/64 2001:db8:1:3::1 ipv6 route 2001:db8:1:4::/64 2001:db8:1:3::2 ipv6 route 2001:db8:1::/65 2001:db8:1:3::1 To configure an IPv6 static route, use the ipv6 route command followed by the destination network. Then add either the IP address of the adjacent router or the interface R1 will use to transmit a packet to the 2001:db8:1:4::/64 network.

This item references content from the following areas: Routing Protocols 2.2.3 Configure IPv6 Static Routes

13

Which two statements describe classful IP addresses? (Choose two.) Correct Response Your Response It is possible to determine which class an address belongs to by reading the first bit. The number of bits used to identify the hosts is fixed by the class of the network. Only Class A addresses can be represented by high-order bits 100. Up to 24 bits can make up the host portion of a Class C address. All subnets in a network are the same size. Three of the five classes of addresses are reserved for multicasts and experimental use.

This item references content from the following areas: Routing Protocols 2.3.1 Classful Addressing

14

A company has several networks with the following IP address requirements: IP phones - 50 PCs - 70 IP cameras - 10 wireless access points - 10 network printers - 10 network scanners - 2 Which block of addresses would be the minimum to accommodate all of these devices if each type of device was on its own network? Correct Response Your Response 172.16.0.0/25 172.16.0.0/24 172.16.0.0/23 172.16.0.0/22 The network for the PCs would require a subnet mask of /25 in order to accommodate 70 devices. That network could use IP addresses 0 through 127. Phones require a subnet mask of /26 for 50 devices (addresses 128-191). Three /28 networks are needed in order to accommodate cameras, APs, and printers. The network scanner network can use a /30. A block of addresses with a mask of /24 will accommodate this site as the minimum amount needed.

This item references content from the following areas: Routing Protocols 2.3.3 VLSM

19

Which three IOS troubleshooting commands can help to isolate problems with a static route? (Choose three.) Correct Response Your Response show version ping tracert show ip route show ip interface brief show arp The ping, show ip route, and show ip interface brief commands provide information to help troubleshoot static routes. Show version does not provide any routing information. The tracert command is used at the Windows command prompt and is not an IOS command. The show arp command displays learned IP address to MAC address mappings contained in the Address Resolution Protocol (ARP) table.

This item references content from the following areas: Routing Protocols 2.5.2 Troubleshoot IPv4 Static and Default Route Configuration

21	What happens to a static route entry in a routing table when the outgoing interface is not available? Correct Response Your Response The route is removed from the table. The router polls neighbors for a replacement route. The route remains in the table because it was defined as static. The router redirects the static route to compensate for the loss of the next hop device.

This item references content from the following areas: Routing Protocols 2.5.2 Troubleshoot IPv4 Static and Default Route Configuration

23

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. What IPv6 static route can be configured on router R1 to make a fully converged network?  Correct Response Your Response ipv6 route 2001:db8:10:12::/64 S0/0/1 ipv6 route 2001:db8:10:12::/64 S0/0/0 ipv6 route 2001:db8:10:12::/64 2001:db8:10:12::1 ipv6 route 2001:db8:10:12::/64 2001:db8:32:77::1 To reach the remote network, R1 will need a static route with a destination IPv6 address of 2001:db8:10:12::/64 and an exit interface of S0/0/1. The correct static route configuration will be as follows:ipv6 route 2001:db8:10:12::/64 S0/0/1.

This item references content from the following areas: Routing Protocols 2.2.3 Configure IPv6 Static Routes