Assignment 2 1. What is a routing table? 4. What is meant by 0.0.0.0 network add
ID: 3882498 • Letter: A
Question
Assignment 2
1. What is a routing table?
4. What is meant by 0.0.0.0 network address entry with a subnet mask of 0.0.0.0 in a PC’s routing table?
5. What is the 127.0.0.1 IP Address, and what is it used for?
13. A static route is configured to route data from LAN A to LAN B on Router 1 in figure 2-17. Which of the following are appropriate static routes to achieve this goal? a. Ip route 10.10.16.0.255.255.255.255 10.20.100.2 b. Ip route 10.10.16.0.255.255.255.255.255.0 10.20.100.2 c. Ip route 10.10.16.0.255.255.255.255.10.10.10.2 d. Ip route 10.10.16.0.255.255.255.0 10.10.10.2
14. What is the purpose of the gateway of last resort?
25. What is the difference between a static and a dynamic routing protocol?
26. What are the four key issues in dynamic routing protocols?
27. Define fop count?
30. Determine the hop count for Router 2 to subnet B in Figure 2-18 A, B, C, E, F, G, H,I are segments. 2 3 4 FIGURE 2-18 The network for problems 2-30 through 2-32 31. For Figure 2-18, what is the hop count from Router5 to subnet G? 32. For Figure 2-18, what is the hop count from Router3 to subnet A? 33. Link state protocols issue what to update neighbor routers regarding route status? a. Hop status b. Link state advertisements c. "Hello" packets d. AdjacenciesExplanation / Answer
1. A routing table is a table in which it contains the information to forward a packet along the best path toward its destination.
In every each packet it contains the information about its origin and destination.
When we received a packet,the packet and matches are examines by a network device and the routing table entry gives the best match for it destination.
These table gives the instructions of the device for sending the packet to next network router
2.
In every each network host they have a default route for every each network card. That will create a 0.0.0.0 route for such card.
The address 0.0.0.0 defined as any address. when a packet destination will not match an individual address in the given table,so for that reason it must match a 0.0.0.0 gateway address.
We can also say that in other words the default gateway is always pointed by 0.0.0.0 address
5.
The 127.0.0.1 is the loopback Internet protocol address and also it called as the localhost.
These kind of addresses are used to connect the IP connection to the same system or computer which is used by the end user.
The computers which support IPv6 addressing using the connotation of ::1 will have the same convention to define.
And also by establishing the connection using the address 127.0.0.1 is a common way but using any IP address in the range of 127.*.*.* will function in the same routine manner.
The capability to validate or establish the IP stack on the machine are by constructing the loopback for a computer or device capable of networking
14.
When a route is used by the router when no other route exists to transmit the IP packet is called as A Gateway of Last Resort or Default gateway.
We must know that the Known routes are present in the routing table. So any route which is not known by the routing table will be forwarded to the default route.
And each router receives this packet will be treated by the packet if the route is identified or known and the packet will be forwarded to the known route.
25.
When we configure the router to send traffic for particular destinations in preconfigured directions is know as the static routing.
when we use a routing protocol such as ISIS, EIGRP, OSPF, and BGP to find out the paths traffic to be used is know as dynamic routing.
26.
1. Path determination- the protocol that is used to determine the best route.
2. Metric - The assigned measure to routes the routes best to worst and the number is smaller then it is better.
3. Convergence- The time it takes for the router to obtain a clear view is called the convergence time .
4. Load balancing- The routers which can use any of the multiple data paths available from multiple routers to reach the destination.