多选题Which three are benefits of IS - IS over OSPF?（）Asupports route tagsBsupports more routers in an areaCdoes not require Hello packets to establish neighbor relationshipsDproduces fewer link state advertisements for a given networkEsupports network layer

题目
多选题
Which three are benefits of IS - IS over OSPF?（）
A

supports route tags

B

supports more routers in an area

C

does not require Hello packets to establish neighbor relationships

D

produces fewer link state advertisements for a given network

E

supports network layer protocols other than IP

F

requires fewer neighbor relationships in a broadcast multiaccess network

相似考题

1.What is the purpose of the OSPF link－state update packet?()A. describes a change to the OSPF hello timerB. carries one or more link-state advertisementsC. establishes and maintains neighbor relationshipsD. describes the contents of the entire link-state database

2.Which three are benefits of IS － IS over OSPF?()A. supports route tagsB. supports more routers in an areaC. does not require Hello packets to establish neighbor relationshipsD. produces fewer link state advertisements for a given networkE. supports network layer protocols other than IPF. requires fewer neighbor relationships in a broadcast multiaccess network

3.What does a router do if it has no EIGRP feasible successor route to a destination network and the successor route to that destination network is inactive status?()A. It routes all traffic that is addresses to the destination network to the interface indicates in the routing table.B. It sends a copy of its neighbor table to all adjacent routers.C. It sends a multicast query packet to all adjacent neighbors requesting available routing paths to the destination network.D. It broadcasts Hello packets to all routers in the network to re-establish neighbor adjacencies.

4.Which of the following must match for two directly connected routers running OSPF to establish a neighbor adjacency?()A. area IDsB. process IDsC. router IDsD. hello timers

参考答案和解析
正确答案： F,C
解析： 暂无解析
更多“多选题Which three are benefits of IS - IS over OSPF?（）Asupports route tagsBsupports more routers in an areaCdoes not require Hello packets to establish neighbor relationshipsDproduces fewer link state advertisements for a given networkEsupports network layer”相关问题

  • 第1题：

    Refer to the exhibit. Which statement is true about the configuration? ()

    A. RTA will not establish an OSPF adjacency w ith RTB

    B. RTA will send OSPF hello packets, but will not send OSPF updates

    C. RTA will not accept OSPF hello packets from RTB

    D. RTA will send OSPF updates, but will not establish an adjacency with RTB


    参考答案：A

  • 第2题：

    Which EIGRP packet statement is true?()

    A. Update packets route reliable change information only to the affected routers.

    B. Reply packets are multicast to IP address 224.0.0.10 using RTP.

    C. On high - speed links, hello packets are broadcast every 5 seconds for neighbor discovery.

    D. Reply packets are used to send routing updates.

    E. On low - speed links, hello packets are broa dcast every 15 seconds for neighbor discovery.


    参考答案：A

  • 第3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4题：

    Which three statements about OSPF areas are true?（）

    • A、Areas introduce a boundary on the link - state updates.
    • B、Areas are  logical definitions specific to any given router.
    • C、All routers within an area have the exact link - state database.
    • D、The calculation of the Dijkstra algorithm on a router is limited to changes within an area.
    • E、The area designated router will always  have a priority of 0.

    正确答案:A,C,D

  • 第5题：

    The OSPF hello protocol performs which of the following tasks?（）

    • A、It provides dynamic neighbor discovery
    • B、It detects unreachable neighbors in 90 second intervals
    • C、It maintains neighbor relationships
    • D、It negotiates correctness parameters between neighboring interfaces
    • E、It uses timers to elect the router witch the fastest links as the designated router
    • F、It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF

    正确答案:A,C

  • 第6题：

    Which of the following must match for  two directly connected routers running OSPF to establish a neighbor adjacency?（）

    • A、area IDs
    • B、process IDs
    • C、router IDs
    • D、hello timers

    正确答案:A,D

  • 第7题：

    What is the purpose of the OSPF router ID in a OR/BOR election?（）

    • A、It is used with the OSPF priority values to determine which OSPF router will become the DR or BOR in a point-to-point network
    • B、It is used with the OSPF priority values to determine which interface will be used to form a neighbor relationship with another OSPF router
    • C、It is used with the OSPF priority values to determine which router will become the DR or BOR in a multi access network
    • D、It is used to determine which interfaces will send Hello packets to neighboring OSPF routers

    正确答案:C

  • 第8题：

    What is the purpose of the OSPF link-state update packet?（）

    • A、describes a change to the OSPF hello timer
    • B、carries one or more link-state advertisements
    • C、establishes and maintains neighbor relationships
    • D、describes the contents of the entire link-state database

    正确答案:B

  • 第9题：

    单选题
    What does a router do if it has no EIGRP feasible successor route to a destination network and the successor route to that destination network is inactive status?（）
    A

    It routes all traffic that is addresses to the destination network to the interface indicates in the routing table.

    B

    It sends a copy of its neighbor table to all adjacent routers.

    C

    It sends a multicast query packet to all adjacent neighbors requesting available routing paths to the destination network.

    D

    It broadcasts Hello packets to all routers in the network to re-establish neighbor adjacencies.


    正确答案： D
    解析： 暂无解析

  • 第10题：

    多选题
    The core of a network has four routers connected in a square design with Gigabit Ethernet links using /30 subnets. The network is used to carry voice traffic and other applications. Convergence time is taking more than expected. Which three actions would you take to improve OSPF convergence time？（）
    A

    Increase MTU of the interfaces to accommodate larger OSPF packets.

    B

    Change the network type to point-to-point on those links.

    C

    Reduce SPF initial timer.

    D

    Increase hello interval to avoid adjacency flapping.

    E

    Enable OSPF


    正确答案： A,B
    解析： 暂无解析

  • 第11题：

    多选题
    Which three statements about the EIGRP routing protocol are true?（）
    A

    EIGRP supports five generic packet types, including hello, database description (DBD), link state request (LSR), link - state update (LSU), and LSAck.

    B

    EIGRP sends periodic hello packets to the multicast IP address 224.0.0.10.

    C

    EIGRP will not form a neighbor relationship with another peer when their K values are mismatched.

    D

    EIGRP sends periodic hello packets to the multicast IP address 224.0.0.9.

    E

    E IGRP will form a neighbor relationship with another peer even when their K values are mismatched.

    F

    EIGRP supports five generic packet types, including hello, update, query, reply, and ACK packets.


    正确答案： B,D
    解析： 暂无解析

  • 第12题：

    多选题
    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： C,B
    解析： 暂无解析

  • 第13题：

    Which three statements about the EIGRP routing protocol are true?()

    A. EIGRP supports five generic packet types, including hello, database description (DBD), link state request (LSR), link - state update (LSU), and LSAck.

    B. EIGRP sends periodic hello packets to the multicast IP address 224.0.0.10.

    C. EIGRP will not form a neighbor relationship with another peer when their K values are mismatched.

    D. EIGRP sends periodic hello packets to the multicast IP address 224.0.0.9.

    E. E IGRP will form a neighbor relationship with another peer even when their K values are mismatched.

    F. EIGRP supports five generic packet types, including hello, update, query, reply, and ACK packets.


    参考答案：B, C, F

  • 第14题：

    The OSPF hello protocol performs which of the following tasks?()

    A. It provides dynamic neighbor discovery

    B. It detects unreachable neighbors in 90 second intervals

    C. It maintains neighbor relationships

    D. It negotiates correctness parameters between neighboring interfaces

    E. It uses timers to elect the router witch the fastest links as the designated router

    F. It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF


    参考答案：A, C

  • 第15题：

    Which three are benefits of IS - IS over OSPF?（）

    • A、supports route tags
    • B、supports more routers in an area
    • C、does not require Hello packets to establish neighbor relationships
    • D、produces fewer link state advertisements for a given network
    • E、supports network layer protocols other than IP
    • F、requires fewer neighbor relationships in a broadcast multiaccess network

    正确答案:B,D,E

  • 第16题：

    The core of a network has four routers connected in a square design with Gigabit Ethernet links using /30 subnets. The network is used to carry voice traffic and other applications. Convergence time is taking more than expected. Which three actions would you take to improve OSPF convergence time？（）

    • A、Increase MTU of the interfaces to accommodate larger OSPF packets.
    • B、Change the network type to point-to-point on those links.
    • C、Reduce SPF initial timer.
    • D、Increase hello interval to avoid adjacency flapping.
    • E、Enable OSPF

    正确答案:B,C,E

  • 第17题：

    Which three are benefits of A virtualized data center solution over A typical implementation?（）

    • A、simplified cabling
    • B、more efficient routing
    • C、fewer applications per server
    • D、more efficient power consumption
    • E、more control over each server
    • F、less rack space

    正确答案:A,D,F

  • 第18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19题：

    An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?（）

    • A、Interfaces will automatically detect and build adjacencies with neighbor routers
    • B、DR and BDR elections will not occur
    • C、DR and BDR elections will occur
    • D、The neighbor command is required to build adjacencies
    • E、All routers must be configured in a fully meshed topology with all other routers

    正确答案:C,D

  • 第20题：

    多选题
    Which three are benefits of IS - IS over OSPF?（）
    A

    supports route tags

    B

    supports more routers in an area

    C

    does not require Hello packets to establish neighbor relationships

    D

    produces fewer link state advertisements for a given network

    E

    supports network layer protocols other than IP

    F

    requires fewer neighbor relationships in a broadcast multiaccess network


    正确答案： D,F
    解析： 暂无解析

  • 第21题：

    多选题
    Which three statements about OSPF areas are true?（）
    A

    Areas introduce a boundary on the link - state updates.

    B

    Areas are  logical definitions specific to any given router.

    C

    All routers within an area have the exact link - state database.

    D

    The calculation of the Dijkstra algorithm on a router is limited to changes within an area.

    E

    The area designated router will always  have a priority of 0.


    正确答案： B,E
    解析： 暂无解析

  • 第22题：

    多选题
    The OSPF hello protocol performs which of the following tasks?（）
    A

    It provides dynamic neighbor discovery

    B

    It detects unreachable neighbors in 90 second intervals

    C

    It maintains neighbor relationships

    D

    It negotiates correctness parameters between neighboring interfaces

    E

    It uses timers to elect the router witch the fastest links as the designated router

    F

    It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF


    正确答案： C,A
    解析： 暂无解析

  • 第23题：

    多选题
    An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?（）
    A

    Interfaces will automatically detect and build adjacencies with neighbor routers

    B

    DR and BDR elections will not occur

    C

    DR and BDR elections will occur

    D

    The neighbor command is required to build adjacencies

    E

    All routers must be configured in a fully meshed topology with all other routers


    正确答案： D,B
    解析： 暂无解析

  • 第24题：

    多选题
    Which of the following must match for  two directly connected routers running OSPF to establish a neighbor adjacency?（）
    A

    area IDs

    B

    process IDs

    C

    router IDs

    D

    hello timers


    正确答案： A,D
    解析： 暂无解析

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