Computer Network Mcqs

Page No. 51

Which protocol maintains neighbor adjacencies?


aRIPv2 and EIGRP


bIGRP and EIGRP


cRIPv2


dEIGRP


View Answer RIPv2

What does administrative distance rank?


aMetrics


bSources of routing information


cRouter reliability


dBest paths



Which is a reason for avoiding doing route redistribution on two routers between the same two routing domains?


aHigher cost of two routers


bRouting feedback


cCisco IOS incompatibility


dNot possible to use two routers


View Answer Routing feedback

Which two routing protocols can be redistributed into OSPF by a Cisco router?


a IP EIGRP and AppleTalk EIGRP


b AppleTalk EIGRP and RIPv2


c RIPv2 and IP EIGRP


d IPX RIP & AppleTalk EIGRP


View Answer RIPv2 and IP EIGRP

Which of the situations might not require multiple routing protocols in a network?


aWhen a new Layer 2-only switch is added to the network


bWhen you are migrating from one routing protocol to another


cWhen you are using routers from multiple vendors


dWhen there are host-based routers from multiple vendors



Which of the following is true regarding RIPv2?


a It has a lower administrative distance than RIPv1


bIt converges faster than RIPv1


c It has the same timers as RIPv1


dIt is harder to configure than RIPv1



What is route poisoning?


aIt sends back the protocol received from a router as a poison pill, which stops the regular updates. The use of variable length subnet masks is permitted


bIt is information received from a router that can’t be sent back to the originating router.RIPv2 supports classless routing


c It prevents regular update messages from reinstating a route that has just come up


dIt describes when a router sets the metric for a downed link to infinity



Which statement is true regarding classless routing protocols?


aThe use of discontinuous networks is not allowed


bThe use of variable length subnet masks is permitted


c RIPv1 is a classless routing protocol


dRIPv2 supports classless routing



Cryptographic hash function takes an arbitrary block of data and returns _________


a fixed size bit string


b variable size bit string


c both fixed size bit string and variable size bit string


dvariable sized byte string



ElGamal encryption system is __________


asymmetric key encryption algorithm


basymmetric key encryption algorithm


c not an encryption algorithm


d block cipher method



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