Cisco R&S Lesson 2

What network address and subnet mask combination would be used to create a default static route that matches any IPv4 destination?

• 0.0.0.0 0.0.0.0

• 0.0.0.0 255.255.255.255

• 255.255.255.255 255.255.255.255

• 255.255.255.255 0.0.0.0

What command, or set of commands, would be used to determine if the following configuration on router HQ works as designed?

ip route 0.0.0.0 0.0.0.0 serial 0/0/0 10

ip route 0.0.0.0 0.0.0.0 serial 0/1/0

• HQ# traceroute 128.107.0.99

• HQ# show ip interface brief

• HQ# ping 128.107.0.99

  HQ# ping 64.100.0.5

• HQ(config)# interface serial 0/1/0

  HQ(config-if)# shutdown

  HQ(config-if)# end

  HQ# show ip route

• HQ# show ip route

What are two reasons why an administrator might choose to use static routing rather than dynamic routing?

• Static routing is easier to maintain in large networks.

• Static routing is more scalable.

• Static routing is more secure.

• Static routing uses less router processing and bandwidth.

• Static routing does not require complete knowledge of the whole network.

Why would a summarized static route be configured on a router?

• to reduce the number of public IP addresses required by an organization

• to reduce the size of the routing table

• to provide a default gateway for a router that connects to an ISP

• to provide a better route than a particular routing protocol

• to reduce the size of the routing protocol update to a neighboring router

A network administrator enters the following command into Router1: ip route 192.168.0.0 255.255.255.0 S0/1/0. Router1 then receives a packet that is destined for 192.168.0.22/24. After finding the recently configured static route in the routing table, what does Router1 do next to process the packet?

• drops the packet because the destination host is not listed in the routing table

• encapsulates the packet into a frame for the WAN link and forwards the packet out the S0/1/0 interface

• performs a recursive lookup for the IP address of the S0/1/0 interface before forwarding the packet

• looks up the MAC address of the S0/1/0 interface to determine the destination MAC address of the new frame

Which command would create a valid IPv6 default route?

• ipv6 route ::/0 fe80::1

• ipv6 route ::/0 2001:db8:acad:2::a

• ipv6 route 2001:db8:acad:1::/64 ::1

• ipv6 route ::/128 2001:db8:acad:1::1

Which static route statement shows a recursive IPv6 static route?

• ipv6 route 2001:db8:cafe:1::/56 S0/0/0

  2001:db8:1000:10::1

• ipv6 route 2001:db8:cafe:1::/56

  2001:db8:1000:10::1

• ipv6 route 2001:db8:cafe:1::/56 S0/0/0

• ipv6 route 0::/0 S0/0/0 254

• ipv6 route 0::/0 S0/0/0

What type of static route is created when the next-hop IP address and exit interface are specified?

• directly connected static route

• fully specified static route

• floating static route

• recursive static route

A network administrator notices that a correctly entered static route is not in the routing table. What two router commands would an administrator use to determine if the exit interface was up and the next hop address is available?

• tracert

• show ip route

• show ip interface brief

• show ip protocols

• ping

Which IPv6 static route would serve as a backup route to a dynamic route learned through OSPF?

• Router1(config)# ipv6 route 2001:db8:acad:1::/32 2001:db8:acad:6::2 100

• Router1(config)# ipv6 route 2001:db8:acad:1::/32 2001:db8:acad:6::100

• Router1(config)# ipv6 route 2001:db8:acad:1::/32 2001:db8:acad:6::2 200

• Router1(config)# ipv6 route 2001:db8:acad:1::/32 gigabitethernet0/0 2001:db8:acad:6::100 100