N10-004

单选题Which of the following routing protocols runs over UDP and determines path based upon distancevectors?（）A RIPB DSIC BGPD IS-IS

题目
单选题
Which of the following routing protocols runs over UDP and determines path based upon distancevectors?（）
A

RIP

B

DSI

C

BGP

D

IS-IS

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相似问题和答案

第1题：

Which of the following routing protocols runs over UDP and determines path based upon distancevectors?()

A.RIP

B.DSI

C.BGP

D.IS-IS


参考答案：A

第2题：

Which of the following statements regarding routed and routing protocols are true?()

A. A routed protocol is assigned to an interface and determines the method of packet deliver.

B. A routing protocol determines the path of a packet through a network.

C. A routed protocol determines the path of a packet through a network.

D. A routing protocol operates at the transport layer of the OSI model.

E. A routed protocol updates the routing table of a router.


参考答案：A, B

第3题：

By default, which of the following factors determines the spanning-tree path cost?

A．It is the individual link cost based on latency

B．It is the sum of the costs based on bandwidth

C．It is the total hop count

D．It is dynamically determined based on load

E．None of the above


正确答案：B
解析：Explanation:"TheSTPcostisanaccumulatedtotalpathcostbasedontheavailablebandwidthofeachofthelinks."Note:Apathcostvalueisgiventoeachport.Thecostistypicallybasedonaguidelineestablishedaspartof802.1d.Accordingtotheoriginalspecification,costis1,000Mbps(1gigabitpersecond)dividedbythebandwidthofthesegmentconnectedtotheport.Therefore,a10Mbpsconnectionwouldhaveacostof(1,000/10)100.Tocompensateforthespeedofnetworksincreasingbeyondthegigabitrange,thestandardcosthasbeenslightlymodified.Thenewcostvaluesare:Youshouldalsonotethatthepathcostcanbeanarbitraryvalueassignedbythenetworkadministrator,insteadofoneofthestandardcostvalues.IncorrectAnswers:A,D:TheSTPprocessdoesnottakeintoaccountthelatencyorloadofalink.STPdoesnotrecalculatethelinkcostsdynamically.C.HopcountsareusedbyRIProuterstocalculatethecostofaroutetoadestination.TheSTPprocessresidesatlayer2oftheOSImodel,wherehopcountsarenotconsidered.

第4题：

Which of the following technologies can be used in distance vector routing protocols to prevent routing loops?（）

  • A、Spanning Tree Protocol
  • B、Shortest path first tree
  • C、Link-state advertisements (LSA)
  • D、Hold-down timers
  • E、Split horizon
  • F、VRP

正确答案:D,E

第5题：

Which of the following statements describe the characteristic of link state routing protocols?()

A. The exchange of an advertisement is triggered by a change in the network.

B. All routers exchange routing tables with each other in a multipoint network.

C. Packets are routed based upon the shortest path to the destination.

D. Paths are chosen depending on the cost efficiency factor.

E. Every router in an OSPF area is capable of representing the entire network topology.

F. Only the designated router in an OSPF area can represent the entire network topology.


参考答案：A, C, E

第6题：

Which of the following is an EGP routing protocol?()

A.IGP

B.OSPF

C.BGP

D.RIP


参考答案：C

第7题：

Which two routing protocols require a metric to be configured when redistributing routes from other protocols?()

A. RIP

B. BGP

C. IS - IS

D. OSPF

E. EIGRP


参考答案：A, E

第8题：

Which of the following is an interior routing protocol that is used to provide routing within autonomous systems?()

A.ARP

B.IGP

C.BGP

D.EGP


参考答案：B

第9题：

Part of the job as a network administrator is being able to make a distinction between routed protocols and routing protocols. Which of the following statements is true regarding them?()

A. A routing protocol is assigned to an interface and determines the method of packet delivery.

B. A routed protocol is assigned to an interface and determines the method of packet delivery.

C. A routing protocol determines the path of a packet through a network.

D. A routed protocol determines the path of a packet through a network.

E. A routing protocol operates at the transport layer of the OSI model.

F. A routed protocol updates the routing table of a router.


参考答案：B, C

第10题：

Which of the following is the most effective technique to prevent source IPAddress spoofing？（）

  • A、 policy based routing （PBR）
  • B、 unicast reverse path forwarding （uRPF）
  • C、 lock and keyACL
  • D、 RFC 1918filtering
  • E、 IP source routing

正确答案:B

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