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单选题Which of the following routing protocols is a link state and uses a backbone called area 0？（）A OSPFB EIGRPC BGPD IS-IS

题目
单选题
Which of the following routing protocols is a link state and uses a backbone called area 0？（）
A

OSPF

B

EIGRP

C

BGP

D

IS-IS

相似考题

1.Two autonomous networks who wish to exchange routing data should use which of the following protocols?()A.OSPFB.BGPC.EIGRPD.IS-IS

2.Whichofthefollowingroutingprotocolsisalinkstateandusesabackbonecalledarea0?()A.OSPFB.EIGRPC.BGPD.IS-IS

3.Intermediate system to intermediate system (IS - IS), is a protocol used by network devices (routers) to determine the best way to forward datagrams through a packet - switched network, a process called routing. Which three attributes are of the IS - IS routing protocol? （）A. supports VLSMB. link - state routing protocolC. operati on is similar to BGPD. supports two routing levels within an autonomous system

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

更多“单选题Which of the following routing protocols is a link state and uses a backbone called area 0？（）A OSPFB EIGRPC BGPD IS-IS”相关问题

  • 第1题：

    What are the different characteristics of distance vector and link state routing protocols?()

    A. Distance vector protocols send the entire routing table to directly connected neighbors.

    B. Distance vector protocols are responsible for sending updates to all networks listed in the routing table.

    C. Link state protocols are responsible for sending the entire routing table to the whole network.

    D. Link state protocols send updates regarding their own links status to all other routers on the network.

    E. None of the above


    参考答案：A, D

  • 第2题：

    The statements below compare and contrast link state and distance vector routing protocols. Which of these are true?()

    A. Distance vector protocols send the entire routing table to directly connected neighbors.

    B. Distance vector protocols are responsible for sending updates to all networks listed in the routing table.

    C. Link state protocols are responsible for sending the entire routing table to the whole network.

    D. Link state protocols send updates regarding their own links status to all other routers on the network.


    参考答案：A, D

  • 第3题：

    Which routing protocol supports a flexible area structure using routing levels one and two?()

    A.OSPF

    B.EIGRP

    C.IS-IS

    D.BGP


    参考答案：C

  • 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 routing protocols support the use of VLSM (Variable Length Subnet Masking)?（）

    • A、RIPv1
    • B、EIGRP
    • C、OSPF
    • D、IGRP
    • E、RIPv2

    正确答案:B,C,E

  • 第6题：

    Two autonomous networks who wish to exchange routing data should use which of the following protocols?（）

    • A、OSPF
    • B、BGP
    • C、EIGRP
    • D、IS-IS

    正确答案:B

  • 第7题：

    Which two routing protocols support MPLS traffic engineering link information distribution？ （）

    • A、OSPF
    • B、BGP
    • C、RIP version 2
    • D、IS-IS
    • E、EIGRP

    正确答案:A,D

  • 第8题：

    Which of the following routing protocols is a link state and uses a backbone called area 0？（）

    • A、OSPF
    • B、EIGRP
    • C、BGP
    • D、IS-IS

    正确答案:A

  • 第9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

    正确答案:A

  • 第10题：

    单选题
    Which of the following routing protocols uses AS-Path as one of the methods to build the routing table?（）
    A

    OSPF

    B

    IS-IS

    C

    EIGRP

    D

    BGP


    正确答案： D
    解析： 暂无解析

  • 第11题：

    多选题
    The statements below compare and contrast link state and distance vector routing protocols. Which of these are true?（）
    A

    Distance vector protocols send the entire routing table to directly connected neighbors.

    B

    Distance vector protocols are responsible for sending updates to all networks listed in the routing table.

    C

    Link state protocols are responsible for sending the entire routing table to the whole network.

    D

    Link state protocols send updates regarding their own links status to all other routers on the network.


    正确答案： A,D
    解析： 暂无解析

  • 第12题：

    单选题
    Which of the following are considered link state protocols?（）
    A

    RIPv2 and EIGRP

    B

    EGP and IGP

    C

    OSPF and IS-IS

    D

    RIP and BGP


    正确答案： D
    解析： 暂无解析

  • 第13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14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. VRRP


    参考答案：D, E

  • 第15题：

    Open Shortest Path First (OSPF) was designed as an （ ） gateway protocol, for use in an autonomous system such as a local area network (LAN). It implements Dijkstra's algorithm, also known as the （ ） path first algorithm. As a link-state routing protocol it was based on the link-state algorithm developed for the ARPANET in 1980 and the IS-IS routing protocol. OSPF was first standardised in 1989 as RFC 1131, which is now known as OSPF version 1.Routing protocols like OSPF calculate the shortest route to a destination through the network based on an algorithm. The first routing protocol that was widely implemented, the （请作答此空）, calculated the shortest route based on hops, that is the number of routers that an IP packet had to traverse to reach the destination host. RIP successfully implemented dynamic routing, where routing tables change if the network topology changes. But RIP did not adapt its routing according to changing network conditions, such as data-transfer rate. Demand grew for a dynamic routing protocol that could calculate the fastest route to a destination. （ ） was developed so that the shortest path through a network was calculated based on the cost of the route, taking into account bandwidth, delay and load. Therefore OSPF undertakes route cost calculation on the basis of link-cost parameters, which can be weighted by the administrator. OSPF was quickly adopted because it became known for reliably calculating routes through large and complex local area networks.As a link state routing protocol, OSPF maintains link state （ ）, which are really network topology maps, on every router on which it is implemented. The state of a given route in the network is the cost, and OSPF algorithm allows every router to calculate the cost of the routes to any given reachable destination. Unless the administrator has made a configuration, the link cost of a path connected to a router is determined by the bit rate (1 Gbit/s, 10 Gbit/s, etc) of the interface. A router interface with OSPF will then advertise its link cost to neighbouring routers through multicast, known as the hello procedure. All routers with OSPF implementation keep sending hello packets, and thus changes in the cost of their links become known to neighbouring routers. The information about the cost of a link, that is the speed of a point to point connection between two routers, is then cascaded through the network because OSPF routers advertise the information they receive from one neighbouring router to all other neighbouring routers. This process of flooding link state information through the network is known as synchronisation. Based on this information, all routers with OSPF implementation continuously update their link state databases with information about the network topology and adjust their routing tables.OSPF has become a popular dynamic routing protocol. Other commonly used dynamic routing protocols are the RIP and the Border Gateway Protocol (BGP). Today routers support at least one interior gateway protocol to advertise their routing tables within a local area network. Frequently implemented interior gateway protocols besides OSPF are RIP, IS-IS, and the proprietary Interior Gateway Routing Protocol (IGRP) by Cisco.

    A.OSPF
    B.RIP
    C.IS-IS
    D.EIGRP

    答案：B
    解析：

  • 第16题：

    OSPF routing uses the concept of areas. What are the characteristics of OSPF areas?（）

    • A、Each OSPF area requires a loopback interface to be configured. 
    • B、Areas may be assigned any number from 0 to 65535.
    • C、Area 0 is called the backbone area.
    • D、Hierarchical OSPF networks do not require multiple areas.
    • E、Multiple OSPF areas must connect to area 0.
    • F、Single area OSPF networks must be configured in area 1.

    正确答案:B,C,E

  • 第17题：

    Which two are characteristics of link-state routing protocols?（） (Choose two.)

    • A、Routers choose a best path for a destination based on the SPF algorithm.
    • B、All routers in a given area or level build a consistent database describing the network's topology.
    • C、Routers choose the best path for a destination based on the interface on which they received the link stateadvertisement with the lowest cost.
    • D、All routers in a given area or level forward link state advertisements between interfaces in the same area or level, adding their metric to the link state advertisement's cost information when they forward it.

    正确答案:A,B

  • 第18题：

    Intermediate system to intermediate system (IS - IS), is a protocol used by network devices (routers) to determine the best way to forward datagrams through a packet - switched network, a process called routing. Which three attributes are of the IS - IS routing protocol? （）

    • A、supports VLSM
    • B、link - state routing protocol
    • C、operati on is similar to BGP
    • D、supports two routing levels within an autonomous system

    正确答案:A,B,D

  • 第19题：

    What are the different characteristics of distance vector and link state routing protocols?（）

    • A、Distance vector protocols send the entire routing table to directly connected neighbors.
    • B、Distance vector protocols are responsible for sending updates to all networks listed in the routing table.
    • C、Link state protocols are responsible for sending the entire routing table to the whole network.
    • D、Link state protocols send updates regarding their own links status to all other routers on the network.
    • E、None of the above

    正确答案:A,D

  • 第20题：

    Which of the following routing protocols uses AS-Path as one of the methods to build the routing table?（）

    • A、OSPF
    • B、IS-IS
    • C、EIGRP
    • D、BGP

    正确答案:D

  • 第21题：

    Which two statements are correct regarding IS-IS？（）

    • A、Routers maintain a single link-state database per area.
    • B、Routers maintain a separate Level 1 link-state database.
    • C、Routers maintain a separate Level 2 link-state database.
    • D、Routers maintain a single Level 1 link-state database per area.

    正确答案:B,C

  • 第22题：

    单选题
    Which of following is used to periodically multicast by DIS on a LAN to ensure IS-IS link state databaseaccuracy？（）
    A

    LSP

    B

    PSNP

    C

    ISH

    D

    CSNP

    E

    IIH


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    Which of the following routing protocols is a link state and uses a backbone called area 0？（）
    A

    OSPF

    B

    EIGRP

    C

    BGP

    D

    IS-IS


    正确答案： B
    解析： 暂无解析

  • 第24题：

    单选题
    Which routing protocol supports a flexible area structure using routing levels one and two？（）
    A

     OSPF

    B

     EIGRP

    C

     IS-IS

    D

     BGP


    正确答案： C
    解析： 暂无解析

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