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Distribution layer: This layer includes LAN－based routers and layer 3 switches . When is a first－hop redundancy protocol needed in the distribution layer?()A. OSPF is not supported by the designB. HSRP is not supported by the designC. preempt tuning of th

题目
Distribution layer: This layer includes LAN－based routers and layer 3 switches . When is a first－hop redundancy protocol needed in the distribution layer?()

A. OSPF is not supported by the design

B. HSRP is not supported by the design

C. preempt tuning of the default gateway is needed

D. the design implements Layer 3 between the access switch and the distribution switch

相似考题

1.TCP functions at the Open System Interconnection(OSI)(61)layer, or Layer 4. Its chief responsibility is to ensure(62)end-to-end connectivity. IP, located one layer down, at the OSI network layer, or Layer 3, communicates the addresses of each(63)sender and receiver to the routers along the way. Routers and Layer 3 switches can read IP and other Layer 3(64). This information, combined with routing tables and other network intelligence, is all it takes to get(65)the room or around the world via TCP/IP.A．transposeB．translateC．transmitD．transport

2.When is a first－hop redundancy protocol needed in the distribution layer?()A. when HSRP is not supported by the designB. when multiple vendor devices need to be supportedC. when preempt tuning of the default gateway is neededD. when a robust method of backing up the default gateway is neededE. when the design implements Layer 2 between the access switch and the distribution switchF. when the design implements Layer 3 between the access switch and the distribution switch

3.Which of these recommended designs provides the highest availability?()A. map the Layer 2 VLAN number to the Layer 3 subnetB. control route propagation to edge switches using distribute listsC. use a Layer 2 distribution interconnection link with HSRP or GLBPD. use a Layer 3 distribution interconnection link with HSRP or GLBPE. use equal-cost Layer 3 load balancing on all links to limit the scope of queries in EIGRP

4.Routers perform the decision process that selects what path a packet takes. These （ ） layer devices participate it the collection and distribution of network-layer information, and perform Layer 3 switching based on the contents of the network layer （ ） of each packet. You can connect the routers directly by point-to-point （ ） or local-area networks, or you can connect them by LAN or WAN switches. These Layer 2 switches unfortunately do not have the capability to hold Layer 3 （ ） information or to select the path taken by a packet through analysis of its Layer 3 destination address. Thus, Layer 2 switches be involved in the Layer 3 packet （ ） decision process.A.application B. network C.physical D.link A.header B.connection C.protocol D.data A.medium B.links C.switches D.carriers A.network B.links C.protocol D.routing A.switching B.processing C.forwarding D.connecting

更多“Distribution layer: This layer includes LAN－based routers and layer 3 switches . When is a first－hop redundancy protocol needed in the distribution layer?() ”相关问题

  • 第1题：

    To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus?()

    A. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 link

    B. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 link

    C. to two core switches from redundant distribution switches connected with a Layer 2 link

    D. to two core switches from redundant distribution switches connected with a Layer 3 link

    E. to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO


    参考答案：D

  • 第2题：

    Refer to the exhibit. Which recommended practice is applicable?()

    A. If no core layer is deployed, the design will be easier to scale.

    B. If no core layer is deployed, there will be fewer cabling requirements.

    C. If no core layer is deployed, the distribution switches should not be fully meshed.

    D. A dedicated campus core layer is not needed for connecting fewer than five buildings.

    E. A dedicated campus core layer should be deployed for connecting three or more buildings.


    参考答案：E

  • 第3题：

    During testing of network redundancy in a fully meshed enterprise campus， a problem has been reported. Both distribution multilayer switches are fully configured for redundancy； clients operate normally when the primary multilayer distribution switch is operating. All clients drop connections outside of their respective access layer group when the primary distribution switch is shut down and the secondary distribution switch is still operational. Additional information indicates that the secondary  distribution switch is able to ping major corporate and Internet locations.  Which item would be the best point of troubleshooting for this connectivity issue？ （）

    • A、client network configuration
    • B、VLAN mapping
    • C、inter-switch trunk configuration
    • D、UDLD configuration
    • E、first-hop redundancy protocol

    正确答案:E

  • 第4题：

    Which of these recommended designs provides the highest availability?（）

    • A、map the Layer 2 VLAN number to the Layer 3 subnet
    • B、control route propagation to edge switches using distribute lists
    • C、use a Layer 2 distribution interconnection link with HSRP or GLBP
    • D、use a Layer 3 distribution interconnection link with HSRP or GLBP
    • E、use equal-cost Layer 3 load balancing on all links to limit the scope of queries in EIGRP

    正确答案:A

  • 第5题：

    Which two statements are correct about Layer 2 broadcast frames?（）

    • A、Layer 2 broadcast frames are processed by all devices on the same VLAN
    • B、Layer 2 broadcast frames are are discarded by routers that connect to multiple VLANs
    • C、Layer 2 broadcast frames are relayerd by routers to all connected VLANs
    • D、Layer 2 broadcast frames are relayed by switches to devices on the same VLAN

    正确答案:A,D

  • 第6题：

    When is a first-hop redundancy protocol needed in the distribution layer?（）

    • A、when HSRP is not supported by the design
    • B、when multiple vendor devices need to be supported
    • C、when preempt tuning of the default gateway is needed
    • D、when a robust method of backing up the default gateway is needed
    • E、when the design implements Layer 2 between the access switch and the distribution switch
    • F、when the design implements Layer 3 between the access switch and the distribution switch

    正确答案:F

  • 第7题：

    单选题
    Distribution layer: This layer includes LAN-based routers and layer 3 switches . When is a first-hop redundancy protocol needed in the distribution layer?（）
    A

    OSPF is not supported by the design

    B

    HSRP is not supported by the design

    C

    preempt tuning of the default gateway is needed

    D

    the design implements Layer 3 between the access switch and the distribution switch


    正确答案： D
    解析： 暂无解析

  • 第8题：

    多选题
    You work as a network technician. Your boss is interested in the QoS technology in the context ofvideo traffic. What can be said of application of this technology in this type of network？（）
    A

    The access layer is the initial point at which traffic enters the network. Traffic is marked （orremarked） at Layers 2 and 3 by the access switch as it enters the network， or is trusted that it isentering the network with the appropriate tag

    B

    No traffic marking occurs at the core layer. Layer 2/3 QoS tags are trusted from distributionlayer switches and used to prioritize and queue the traffic as it traverses the core

    C

    Traffic inbound from the access layer to the distribution layer can be trusted or reset dependingupon the ability of the access layer switches. Priority access into the core is provided based onLayer 3 QoS tags

    D

    IP precedence， DSCP， QoS group， IP address， and ingress interface are Layer 2 characteristics that are set by the access layer as it passes traffic to the distribution layer. Thedistribution layer， once it has made a switching decision to the core layer， strips these off

    E

    MAC address， Multiprotocol Label Switching （MPLS）； the ATM cell loss priority （CLP） bit， theFrame Relay discard eligible （DE） bit， and ingress interface are established by the voicesubmodule （distribution layer） as traffic passes to the core layer

    F

    The distribution layer inspects a frame to see if it has exceeded a predefined rate of trafficwithin a certain time frame， which is typically a fixed number internal to the switch. If a frame isdetermined to be in excess of the predefined rate limit， the CoS value can be marked up in a waythat results in the packet being dropped


    正确答案： C,F
    解析： 暂无解析

  • 第9题：

    单选题
    What benefit results from implementation of Layer 3 switching versus Layer 2 switching in a fully meshed campus network？（）
    A

    ease of IP address assignment versus use of external routers

    B

    redundancy from trunking between distribution layer switches

    C

    provides first-hop redundancy to clients

    D

    allows inter-VLAN communication without requiring complexity of routing protocols


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    Which of these recommended designs provides the highest availability?（）
    A

    map the Layer 2 VLAN number to the Layer 3 subnet

    B

    control route propagation to edge switches using distribute lists

    C

    use a Layer 2 distribution interconnection link with HSRP or GLBP

    D

    use a Layer 3 distribution interconnection link with HSRP or GLBP

    E

    use equal-cost Layer 3 load balancing on all links to limit the scope of queries in EIGRP


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    When is a first-hop redundancy protocol needed in the distribution layer？（）
    A

     when the design implements Layer 2 between the access arid distribution blocks

    B

     when multiple vendor devices need to be supported

    C

     when preempt tuning of the default gateway is needed

    D

     when a robust method of backing up the default gateway is needed

    E

     when the design implements Layer 2 between the access switch and the distribution blocks

    F

     when the design implements Layer 2 between the access and distribution blocks


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus？（）
    A

     to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 link

    B

     to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 link

    C

     to two core switches from redundant distribution switches connected with Layer 2 link

    D

     to two core switches from redundant distribution switches connected with Layer 3 link

    E

     to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Which two practices will avoid Cisco Express Forwarding polarization?()

    A. The core layer should use default Layer 3 hash information.

    B. The core layer should use default Layer 4 hash information.

    C. The distribution layer should use default Layer 3 hash information.

    D. The distribution layer should use default Layer 4 hash information.

    E. The core layer should use Layer 3 and Layer 4 information as input to the Cisco Expressing Forwarding hashing algorithm.

    F. The distribution layer should use Layer 3 and Layer 4 information as input into the Cisco Expressing Forwarding hashing algorithm.


    参考答案：A, F

  • 第14题：

    Which two of these are correct regarding the recommended practice for distribution layer design based on the following configuration?()

    A. use a Layer 2 link between distribution switches

    B. use a Layer 3 link between distribution switches

    C. use a redundant link to the core

    D. use a Layer 3 link between distribution switches with route summarization


    参考答案：C, D

  • 第15题：

    What benefit results from implementation of Layer 3 switching versus Layer 2 switching in a fully meshed campus network？（）

    • A、ease of IP address assignment versus use of external routers
    • B、redundancy from trunking between distribution layer switches
    • C、provides first-hop redundancy to clients
    • D、allows inter-VLAN communication without requiring complexity of routing protocols

    正确答案:C

  • 第16题：

    To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus？（）

    • A、 to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 link
    • B、 to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 link
    • C、 to two core switches from redundant distribution switches connected with Layer 2 link
    • D、 to two core switches from redundant distribution switches connected with Layer 3 link
    • E、 to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO

    正确答案:D

  • 第17题：

    Which of the following is true concerning best design practices at the switched Access layer of thetraditional layer2 Enterprise Campus Network？（）

    • A、 Cisco NSF with SSO and redundant supervisors has the most impact on the campus in theAccess layer
    • B、 Provides host-level redundancy by connecting each end device to 2 separate Access switches 
    • C、 Offer default gateway redundancy by using dual connections from Access switches toredundant Distribution layer switches using a FHRP
    • D、 Include a link between two Access switches to support summarization of routing information

    正确答案:C

  • 第18题：

    When is a first-hop redundancy protocol needed in the distribution layer？（）

    • A、 when the design implements Layer 2 between the access arid distribution blocks
    • B、 when multiple vendor devices need to be supported
    • C、 when preempt tuning of the default gateway is needed
    • D、 when a robust method of backing up the default gateway is needed
    • E、 when the design implements Layer 2 between the access switch and the distribution blocks
    • F、 when the design implements Layer 2 between the access and distribution blocks

    正确答案:F

  • 第19题：

    单选题
    When is a first-hop redundancy protocol needed in the distribution layer?（）
    A

    when HSRP is not supported by the design

    B

    when multiple vendor devices need to be supported

    C

    when preempt tuning of the default gateway is needed

    D

    when a robust method of backing up the default gateway is needed

    E

    when the design implements Layer 2 between the access switch and the distribution switch

    F

    when the design implements Layer 3 between the access switch and the distribution switch


    正确答案： E
    解析： 暂无解析

  • 第20题：

    单选题
    During testing of network redundancy in a fully meshed enterprise campus， a problem has been reported. Both distribution multilayer switches are fully configured for redundancy； clients operate normally when the primary multilayer distribution switch is operating. All clients drop connections outside of their respective access layer group when the primary distribution switch is shut down and the secondary distribution switch is still operational. Additional information indicates that the secondary  distribution switch is able to ping major corporate and Internet locations.  Which item would be the best point of troubleshooting for this connectivity issue？ （）
    A

    client network configuration

    B

    VLAN mapping

    C

    inter-switch trunk configuration

    D

    UDLD configuration

    E

    first-hop redundancy protocol


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    Cisco Express Forwarding (CEF) is mainly used to increase packet switching speed, reducing the overhead and delays introduced by other routing techniques, increasing overall performance.Which of the following concerning CEF is recommended by Cisco?（）
    A

    Use default Layer 4 hash in core.

    B

    Use default Layer 3 hash in distribution.

    C

    Use default Layer 4 hash in distribution.

    D

    Use default Layer 3 hash in core and Layer 3 + Layer 4 hash in distribution layer.


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    Cisco Express Forwarding （CEF） is mainly used to increase packet switching speed， reducing theoverhead and delays introduced by other routing techniques， increasing overall performance.Which of the following concerning CEF is recommended by Cisco？（）
    A

     Use default Layer 4 hash in core.

    B

     Use default Layer 3 hash in distribution.

    C

     Use default Layer 4 hash in distribution.

    D

     Use default Layer 3 hash in core and Layer 3 + Layer 4 hash in distribution layer.


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    Which of these recommended designs provides the highest availability？（）
    A

     map the Layer 2 VLAN number to the Layer 3 subnet

    B

     control route propagation to edge switches using distribute lists

    C

     use a Layer 2 distribution interconnection link with HSRP or GLBP

    D

     use a Layer 3 distribution interconnection link with HSRP or GLBP

    E

     use equal-cost Layer 3 load balancing on all links to limit the scope of queries in EIGRP


    正确答案： E
    解析： 暂无解析

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