Why is STP required when VLANs span access layer switches?()A. to ensure a loop-free topologyB. to protect against user-side loopsC. in order to support business applicationsD. because of the risk of lost connectivity without STPE. for the most determinis

题目
Why is STP required when VLANs span access layer switches?()

A. to ensure a loop-free topology

B. to protect against user-side loops

C. in order to support business applications

D. because of the risk of lost connectivity without STP

E. for the most deterministic and highly available network topology

相似考题

1.What are some of the characteristics of a typical VLAN arrangement, found throughout the Ezonexam switched LAN? (Select all that apply)A. VLANs logically divide a switch into multiple, independent switches at Layer 2.B. Trunk links can carry traffic for multiple VLANs.C. VLAN implementation significantly increases traffic due to added trunking information.D. A VLAN can span multiple switches.E. VLANs typically increase the number of switches neededF. VLANs typically decrease the number of switches needed

2.You are the network consultant from Cisco.com. Please point out the reason that STP required when VLANs do not span access layer switches.()A. ensure a loop-free topologyB. protect against user-side loopsC. support business applicationsD. risk of lost connectivity without STP

3.Which statement about vlan operation on cisco catalyst switches is true?()A. when a packet is received from an 802.1Q trunk,the vlan id can be determined from the source MAC address table.B. unkown unicast frames are retransmitted only to the ports that belong to the same vlanC. ports between switches should be configured in access mode so that vlans can span across the portsD. broadcast and multicast frames are retransmitted to ports that are configured on different vlan.

4.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 the default gateway is neededD. the design implements Layer 3 between the access switch and the distribution switch

更多“Why is STP required when VLANs span access layer switches?() ”相关问题

  • 第1题：

    Which two statements about voice VLANs are correct？（）

    • A、Voice VLANs eliminate the need for QoS configuration
    • B、Voice VLANs are used on trunk links to eliminate the need for QoS CoS markings
    • C、Voice VLANs are mainly used to reduce the number of access switch ports that are used in the network
    • D、Voice VLANs can be configured to forward existing CoS priorities or override them
    • E、Voice VLANs are mainly used between access layer switches and distribution layer switches
    • F、Voice VLANs can be configured on Layer 2 ports only

    正确答案:D,F

  • 第2题：

    Refer to Topic TestKing.com in iPAD document.What happens to the network when TestKingX is reconnected and a trunk exists between the two switches?（）

    • A、All VLANs except the default VLAN will be removed from all switches.
    • B、All existing switches will have the students, admin, faculty, Servers, Management,Production, and no-where VLANs.
    • C、The VLANs Servers, Management, Production, and no-where will replace the VLANs on SwX.
    • D、The VLANs Servers, Management, Production, and no-where will be removed from existing switches.

    正确答案:D

  • 第3题：

    Which three statements are typical characteristics of VLAN arrangements?（）

    • A、A new switch has no VLANs configured.
    • B、Connectivity between VLANs requires a Layer 3 device.
    • C、VLANs typically decrease the number of collision domains.
    • D、Each VLAN uses a separate address space.
    • E、A switch maintains a separate bridging table for each VLAN.
    • F、VLANs cannot span multiple switches.

    正确答案:B,D,E

  • 第4题：

    Which of the following can be an expected outcome of a VLAN?（）

    • A、VLANs logically divide a switch into multiple, independent switches at Layer 2.
    • B、Trunk links can carry traffic for multiple VLANs.
    • C、VLAN implementation significantly increases traffic due to added trunking information.
    • D、VLANs can span multiple switches.
    • E、VLANs typically decrease the number of switches needed

    正确答案:A,B,D

  • 第5题：

    Which statement about data center access layer design modes is correct?（）

    • A、The access layer is the first oversubscription point in a data center design.
    • B、When using a Layer 2 loop-free design, VLANs are extended into the aggregation layer.
    • C、When using a Layer 2 looped design, VLANs are not extended into the aggregation layer.
    • D、When using a Layer 3 design,stateful services requiring Layer 2 connectivity are provisioned from the aggregation layer.
    • E、The data center access layer provides the physical-level connections to the server resources and only operates at Layer 3.

    正确答案:A

  • 第6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7题：

    You need to design the VLAN scheme for the Company network. Which two statements are true  about best practices in VLAN design？（）

    • A、Routing should occur at the access layer ifvoice VLANs are utilized. Otherwise， routing should occur at the distribution layer.
    • B、Routing should always be performed at the distribution layer.
    • C、VLANs should be localized to a switch.
    • D、VLANs should be localized to a single switch unlessvoice VLANs are being utilized.
    • E、Routing should not be performed between VLANs located on separate switches.

    正确答案:B,C

  • 第8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9题：

    多选题
    Which three statements are typical characteristics of VLAN arrangements?（）
    A

    A new switch has no VLANs configured.

    B

    Connectivity between VLANs requires a Layer 3 device.

    C

    VLANs typically decrease the number of collision domains.

    D

    Each VLAN uses a separate address space.

    E

    A switch maintains a separate bridging table for each VLAN.

    F

    VLANs cannot span multiple switches.


    正确答案： F,E
    解析： 暂无解析

  • 第10题：

    单选题
    Why is STP required when VLANs span access layer switches？（）
    A

    to ensure a loop-free topology

    B

    to protect against user-side loops

    C

    in order to support business applications

    D

    because of the risk of lost connectivity without STP

    E

    for the most deterministic and highly available network topology


    正确答案： E
    解析： 暂无解析

  • 第11题：

    多选题
    What are some characteristics of the typical VLAN arrangement?（）
    A

    VLANs logically divide a switch into multiple, independent switches at Layer 2.

    B

    Trunk links can carry traffic for multiple VLANs.

    C

    VLAN implementation significantly increases traffic due to added trunking information.

    D

    A VLAN can span multiple switches.

    E

    VLANs extend the collision domain to include multiple switches.

    F

    VLANs typically decrease the number of multiple switches.


    正确答案： A,E
    解析： 暂无解析

  • 第12题：

    单选题
    Which statement about data center access layer design modes is correct?（）
    A

    The access layer is the first oversubscription point in a data center design.

    B

    When using a Layer 2 loop-free design, VLANs are extended into the aggregation layer.

    C

    When using a Layer 2 looped design, VLANs are not extended into the aggregation layer.

    D

    When using a Layer 3 design,stateful services requiring Layer 2 connectivity are provisioned from the aggregation layer.

    E

    The data center access layer provides the physical-level connections to the server resources and only operates at Layer 3.


    正确答案： E
    解析： 暂无解析

  • 第13题：

    What are some characteristics of the typical VLAN arrangement?（）

    • A、VLANs logically divide a switch into multiple, independent switches at Layer 2.
    • B、Trunk links can carry traffic for multiple VLANs.
    • C、VLAN implementation significantly increases traffic due to added trunking information.
    • D、A VLAN can span multiple switches.
    • E、VLANs extend the collision domain to include multiple switches.
    • F、VLANs typically decrease the number of multiple switches.

    正确答案:A,B,D

  • 第14题：

    Why is STP required when VLANs span access layer switches?（）

    • A、to ensure a loop-free topology
    • B、to protect against user-side loops
    • C、in order to support business applications
    • D、because of the risk of lost connectivity without STP
    • E、for the most deterministic and highly available network topology

    正确答案:B

  • 第15题：

    What are some of the characteristics of a typical VLAN arrangement?（）

    • A、VLANs logically divide a switch into multiple, independent switches at Layer 2.
    • B、Trunk links can carry traffic for multiple VLANs.
    • C、VLAN implementation significantly increases traffic due to added trunking information.
    • D、A VLAN can span multiple switches.
    • E、VLANs typically increase the number of switches needed
    • F、VLANs typically decrease the number of switches needed

    正确答案:A,B,D

  • 第16题：

    Which statement about vlan operation on cisco catalyst switches is true?（）

    • A、when a packet is received from an 802.1Q trunk,the vlan id can be determined from the source MAC address table.
    • B、unkown unicast frames are retransmitted only to the ports that belong to the same vlan
    • C、ports between switches should be configured in access mode so that vlans can span across the ports
    • D、broadcast and multicast frames are retransmitted to ports that are configured on different vlan.

    正确答案:B

  • 第17题：

    In a base e-Commerce module design, which routing statement is correct?（）

    • A、Routing is mostly static.
    • B、Hardcoded IP addresses are used to support failover.
    • C、Inbound servers use the CSM or ACE as the default gateway.
    • D、VLANs between the access layer switches are used for FHRP protocols.

    正确答案:A

  • 第18题：

    If an enterprise customer required a switch for their branch office access layer, which family of switches would the customer likely choose from?（）

    • A、Cisco Catalyst 2000 and 3000
    • B、Cisco Nexus
    • C、Cisco Catalyst 4000 and 6000
    • D、Cisco SFS 3000/7000

    正确答案:A

  • 第19题：

    多选题
    What are some of the characteristics of a typical VLAN arrangement?（）
    A

    VLANs logically divide a switch into multiple, independent switches at Layer 2.

    B

    Trunk links can carry traffic for multiple VLANs.

    C

    VLAN implementation significantly increases traffic due to added trunking information.

    D

    A VLAN can span multiple switches.

    E

    VLANs typically increase the number of switches needed

    F

    VLANs typically decrease the number of switches needed


    正确答案： B,E
    解析： 暂无解析

  • 第20题：

    单选题
    You are the network consultant from Cisco.com. Please point out the reason that STP required when VLANs do not span access layer switches.（）
    A

    ensure a loop-free topology

    B

    protect against user-side loops

    C

    support business applications

    D

    risk of lost connectivity without STP


    正确答案： B
    解析： 暂无解析

  • 第21题：

    多选题
    Which of the following can be an expected outcome of a VLAN?（）
    A

    VLANs logically divide a switch into multiple, independent switches at Layer 2.

    B

    Trunk links can carry traffic for multiple VLANs.

    C

    VLAN implementation significantly increases traffic due to added trunking information.

    D

    VLANs can span multiple switches.

    E

    VLANs typically decrease the number of switches needed


    正确答案： B,E
    解析： 暂无解析

  • 第22题：

    多选题
    You need to design the VLAN scheme for the Company network. Which two statements are true  about best practices in VLAN design？（）
    A

    Routing should occur at the access layer ifvoice VLANs are utilized. Otherwise， routing should occur at the distribution layer.

    B

    Routing should always be performed at the distribution layer.

    C

    VLANs should be localized to a switch.

    D

    VLANs should be localized to a single switch unlessvoice VLANs are being utilized.

    E

    Routing should not be performed between VLANs located on separate switches.


    正确答案： D,E
    解析： 暂无解析

  • 第23题：

    单选题
    Which statement about data center access layer design modes is correct？（）
    A

     The access layer is the first oversubscription point in a data center design.

    B

     When using a Layer 2 loop-free design， VLANs are extended into the aggregation layer.

    C

     When using a Layer 2 looped design， VLANs are not extended into the aggregation layer.

    D

     When using a Layer 3 design， stateful services requiring Layer 2 connectivity are provisionedfrom the aggregation layer.

    E

     The data center access layer provides the physical-level connections to the server resourcesand only operates at Layer 3.


    正确答案： A
    解析： 暂无解析

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