Day 17

1. If the packet is destined for a network not in the routing table and no default route exists then it is broadcast.

2. Which command produces the below output:

Routing Protocol is "isis"   Invalid after 0 seconds, hold down 0, flushed after 0   Outgoing update filter list for all interfaces is not set   Incoming update filter list for all interfaces is not set   Redistributing: isis   Address Summarization:     None   Maximum path: 4   Routing for Networks:     Serial0/0   Routing Information Sources:     Gateway         Distance      Last Update     10.0.0.2             115      00:06:53   Distance: (default is 115)

3. All Distance Vector routing protocols share which of the following characteristics?

4. Network  _____ occurs when all routers in the network have the same view and agree on optimal routes.

5. The administrative distance for Connected Interfaces is?

6. The term ______ refers to the amount of data that can be carried from one point to another in a given period.

7. Routing protocol algorithms operate using either a flat routing system or a hierarchical routing system.

8. Cisco routers use the administrative distance, the routing protocol metric, and the prefix length to determine which routes will actually be placed into the routing table, which allows the router to build the routing table.

9. The passive interface functions differently based on the specific routing protocol used but the behaviour usually falls within the following two categories.

10. _____, as it applies in a routing context, refers to the degree of use for a particular router interface.

11. Packet forwarding involves which two processes?

12. Summarisation reduces the amount of information that routers must process, which allows for faster convergence within the network. Summarisation also restricts the size of the area that is affected by network changes by hiding detailed topology information from certain areas within the network.

13. Type 800 indicates that the packet is IPv6.

14. Routing protocols are responsible for forwarding packets across a network.

15. The administrative distance 120 refers to?

16. ____ routing protocols are hierarchical routing protocols that use the concept of areas to logically group routers within a network.

17. The role of routing protocols is to learn about other networks dynamically, exchange routing information with other devices, and connect internal and/or external networks.

18. Which of the below are examples of classful routing protocols?

19. During the _____ period, the router suppresses the network and prevents advertising false information. The router also does not route to the unreachable network, even if it receives information from another router (that may not have received the triggered update) that the network is reachable. This mechanism is designed to prevent black-holing traffic.