To prevent Service Advertisements (SAPs) from flooding a network, Cisco routers do not forward them. How are services advertised to other networks?

Networking - Quiz(MCQ)

Cisco routers filter out all SAPs

SAPs arenâ€™t necessary with Cisco routers

Each router assigns a service number and broadcasts that

Each router builds its own SAP table and forwards that every 60 seconds

Correct Answer : Each router builds its own SAP table and forwards that every 60 seconds

Explanation : Cisco routers build SAP tables and forward the table every 60 seconds. All SAPs can’t befiltered even with 4.x since NDS and time synchronization uses SAPs.

Recently Updated in Networking Questions

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.