多选题Which two are characteristics of link-state routing protocols?（） (Choose two.)ARouters choose a best path for a destination based on the SPF algorithm.BAll routers in a given area or level build a consistent database describing the network's topology.C

题目
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.

相似考题

1.Which two are components of the enhanced services software architecture?() (Choose two.)A. Linux kernelB. routing protocol daemonC. session-based forwarding moduleD. separate routing and security planes

2.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.

3.What are the characteristic of link state routing protocols?()A. The exchange of advertisement is triggered by a change in the network.B. All routers exchange routing tables with each other iIn 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.

4.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 across multiple areas.

更多“多选题Which two are characteristics of link-state routing protocols?（） (Choose two.)ARouters choose a best path for a destination based on the SPF algorithm.BAll routers in a given area or level build a consistent database describing the network's topology.C”相关问题

  • 第1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2题：

    OSPF is a link-state routing protocol。It is designed to be run internal to a single （71）system。Each OSPF router maintains an identical （）describing the autonomous system’s topology。From this database，a routing table is calculated by constructing a shortest-path （）。OSPF recalculates routes quickly in the face of topological changes，utilizing a minimum of routing （） traffic。OSPF provides support for equal-cost multipath。An area routing capability is provided，enabling an additional level of routing protection and a reduction in routing protocol （）。

    A.autonomous
    B.network
    C.computer
    D.server

    答案：A
    解析：

  • 第3题：

    What functions do routers perform in a network (Choose two.)（）。

    • A、packet switching
    • B、access layer security
    • C、path selection
    • D、VLAN membership assignment
    • E、bridging between LAN segments
    • F、microsegmentation of broadcast domai

    正确答案:A,C

  • 第4题：

    When HSRP is configured on a network, which two of these items are provided, which are sharedbetween the routers that run HSRP? （）(Choose two.)

    • A、TCP-based hello packets
    • B、the impact of flapping links if timers are too low
    • C、a shared single interface
    • D、the ability to track serial interfaces
    • E、UDP-based hello packets

    正确答案:B,D

  • 第5题：

    The Cisco SDM can configure most， but not all， routing protocols. Which two of these routing protocols can be configured using SDM？ （Choose two.）（）

    • A、 BGP
    • B、 IGRP
    • C、 ISIS
    • D、 OSPF
    • E、 EIGRP

    正确答案:D,E

  • 第6题：

    Which two are components of the enhanced services software architecture?（） (Choose two.)

    • A、Linux kernel
    • B、routing protocol daemon
    • C、session-based forwarding module
    • D、separate routing and security planes

    正确答案:B,C

  • 第7题：

    多选题
    hat two things will a router do when running a distance vector routing protocol？（）
    A

    Send periodic updates regardless of topology changes.

    B

    Send entire routing table to all routers in the routing domain.

    C

    Use the shortest-path algorithm to the determine best path.

    D

    Update the routing table based on updates from their neighbors.

    E

    Maintain the topology of the entire network in its database.


    正确答案： C,D
    解析： 暂无解析

  • 第8题：

    多选题
    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： C,B
    解析： 暂无解析

  • 第9题：

    多选题
    Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two.)（）
    A

    It is locally significant.

    B

    It is globally significant.

    C

    It is needed to identify a unique instance of an OSPF database.

    D

    It is an optional parameter required only if multiple OSPF processes are running on the router.

    E

    All routers in the same OSPF area must have the same process ID if they are to exchange routing information.


    正确答案： D,B
    解析： 暂无解析

  • 第10题：

    多选题
    When HSRP is configured on a network, which two of these items are provided, which are sharedbetween the routers that run HSRP? （）(Choose two.)
    A

    TCP-based hello packets

    B

    the impact of flapping links if timers are too low

    C

    a shared single interface

    D

    the ability to track serial interfaces

    E

    UDP-based hello packets


    正确答案： B,D
    解析： 暂无解析

  • 第11题：

    多选题
    What are the characteristic of link state routing protocols?（）
    A

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

    B

    All routers exchange routing tables with each other iIn 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.


    正确答案： A,B
    解析： 暂无解析

  • 第12题：

    多选题
    When HSRP is configured on a network, which two of these items are provided, which are shared between the routers that run HSRP ?（） (choose two)
    A

    Shared single interface

    B

    IP Address

    C

    TCP-based hello packets

    D

    MAC address


    正确答案： B,C
    解析： 暂无解析

  • 第13题：

    Open Shortest Path First (OSPF) was designed as an （请作答此空） 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 （ ）, 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.exterior
    B.interior
    C.border
    D.routing

    答案：B
    解析：

  • 第14题：

    Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two.)（）

    • A、It is locally significant.
    • B、It is globally significant.
    • C、It is needed to identify a unique instance of an OSPF database.
    • D、It is an optional parameter required only if multiple OSPF processes are running on the router.
    • E、All routers in the same OSPF area must have the same process ID if they are to exchange routing information.

    正确答案:A,C

  • 第15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16题：

    What are two reasons a network administrator would use CDP (Choose two.)（）。

    • A、to verify the type of cable interconnecting two devices
    • B、to determine the status of network services on a remote device
    • C、to obtain VLAN information from directly connected switches
    • D、to verify Layer 2 connectivity between two devices when Layer 3 fails
    • E、to obtain the IP address of a connected device in order to telnet to the device
    • F、to determine the status of the routing protocols between directly connected routers

    正确答案:D,E

  • 第17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18题：

    多选题
    Which two are components of the enhanced services software architecture?（） (Choose two.)
    A

    Linux kernel

    B

    routing protocol daemon

    C

    session-based forwarding module

    D

    separate routing and security planes


    正确答案： C,A
    解析： 暂无解析

  • 第19题：

    多选题
    Your customer wants to build a network for a financial trading floor that has a requirement formultiple high-value transactions, which are also vital to the customer. What are the two mostcritical requirements?（） (Choose two.)
    A

    no single point of failure

    B

    trading database server location

    C

    redundant application servers location

    D

    deterministic response to all failures

    E

    determine which protocol to use


    正确答案： C,A
    解析： 暂无解析

  • 第20题：

    多选题
    The Cisco SDM can configure most， but not all， routing protocols. Which two of these routing protocols can be configured using SDM？ （Choose two.）（）
    A

    BGP

    B

    IGRP

    C

    ISIS

    D

    OSPF

    E

    EIGRP


    正确答案： E,A
    解析： 暂无解析

  • 第21题：

    多选题
    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.


    正确答案： C,A
    解析： 暂无解析

  • 第22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23题：

    多选题
    What are two reasons a network administrator would use CDP? (Choose two.)（）
    A

    to verify the type of cable interconnecting two devices

    B

    to determine the status of network services on a remote device

    C

    to obtain VLAN information from directly connected switches

    D

    to verify Layer 2 connectivity between two devices when Layer 3 fails

    E

    to obtain the IP address of a connected device in order to telnet to the device

    F

    to determine the status of the routing protocols between directly connected routers


    正确答案： D,B
    解析： 暂无解析

  • 第24题：

    多选题
    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 across multiple areas.


    正确答案： D,A
    解析： 暂无解析

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