Which of the following statements can be associated with OSI model?

Networking - Quiz(MCQ)

It is an application specific network model

One layer may duplicate lower layer functionality

A structured way to discuss and easier update system components

Functionality at one layer no way requires information from another layer

Correct Answer : Functionality at one layer no way requires information from another layer

Explanation : One layer may use the information from another layer, for example timestamp value. The information is contained in the header inserted by the previous layer. The headers are added as the packet moves from higher layers to the lower layers.

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EIGRP uses the ____________ algorithm for finding shortest path.

DUAL

SPF

Linkstat

Djikstraâ€™s

Correct Answer : DUAL

Explanation : EIGRP uses the DUAL algorithm for finding shortest path. DUAL stands for diffusing update algorithm and it is used to prevent routing loops by recalculating routes globally.

Administrative distance for external EIGRP route is _______

100

170

135

190

Correct Answer : 170

Explanation : Routers use the metric of administrative distance to select the best path when there are different routes to the same destination from two different routing protocols as it is a measure of reliability of routing protocols. Administrative distance for external EIGRP is 170.

For default gateway, which of following commands will you use on a Cisco router?

Default network

IP default route

IP default network

IP default gateway

Correct Answer : IP default network

Explanation : IP default network command is used to find the default gateway in Cisco router. If the router finds routes to the node, it considers the routes to that node for installation as the gateway to it.