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Q.16. Define the following :- Metric :------------------------------------------

ID: 3727666 • Letter: Q

Question

Q.16. Define the following :-

Metric :----------------------------------------------------------------------------------------

AS :--------------------------------------------------------------------------------------------

OSPF:-----------------------------------------------------------------------------------------

BGP:---------------------------------------------------------------------------------------------

Q.17. What is the difference between a direct and an indirect delivery?

Q.20. a. What is the purpose of RIP?

Q.19. Contrast two different routing tables .

Explanation / Answer

Metric means a system or standard of measurement or based on the metre as a unit of length.

AS isn't clear please tell full form.

OSPF

Open Shortest Path First is a routing protocol for Internet Protocol networks.

Using OSPF, a router that learns of a change to a routing table (when it is reconfigured by network staff).

Border Gateway Protocol (BGP) is a routing protocol used to transfer data and information between different host gateways, the Internet or autonomous systems.BGP is a Path Vector Protocol (PVP), which maintains paths to different hosts, networks and gateway routers and determines the routing decision based on that.

Direct delivery occurs when the IP node (either the sending node or an IP router) forwards a packet to the final destination on a directly attached network.

Indirect delivery occurs when the IP node (either the sending node or an IP router) forwards a packet to an intermediate node (an IP router) because the final destination is not on a directly attached network.

RIP uses distance vectors to mathematically compare routes to identify the best path to any given destination address.

There are two basic methods of building a routing table: • Static Routing • Dynamic Routing

A static routing table is created, maintained, and updated by a network administrator, manually.

A dynamic routing table is created, maintained, and updated by a routing protocol running on the router. Examples of routing protocols include RIP