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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
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更多 “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 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” 相关考题
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考题
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
考题
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
考题
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
考题
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 linkB. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 linkC. to two core switches from redundant distribution switches connected with a Layer 2 linkD. to two core switches from redundant distribution switches connected with a Layer 3 linkE. to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO
考题
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.
考题
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.
考题
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 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
考题
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 switchesB. use a Layer 3 link between distribution switchesC. use a redundant link to the coreD. use a Layer 3 link between distribution switches with route summarization
考题
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
考题
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 linkB、 to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 linkC、 to two core switches from redundant distribution switches connected with Layer 2 linkD、 to two core switches from redundant distribution switches connected with Layer 3 linkE、 to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO
考题
Why do large OSPF networks use a hierarchical design?（）A、to confine network instability to single areas of the networkB、to reduce the complexity of router configurationC、to speed up convergenceD、to lower costs by replacing routers with distribution layer switchesE、to decrease latency by increasing bandwidthF、to reduce routing overhead
考题
Which two statements are correct about Layer 2 broadcast frames?（）A、Layer 2 broadcast frames are processed by all devices on the same VLANB、Layer 2 broadcast frames are are discarded by routers that connect to multiple VLANsC、Layer 2 broadcast frames are relayerd by routers to all connected VLANsD、Layer 2 broadcast frames are relayed by switches to devices on the same VLAN
考题
What is a criteria of the enterprise composite network model？（）A、 includes all modules needed to meet any network designB、 defines flexible boundaries between modules for scalability requirementsC、 clearly defines module boundaries and demarcation points to identify where traffic isD、 requires specific core， distribution， and access layer requirements to match the model
考题
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
考题
When is a first-hop redundancy protocol needed in the distribution layer？（）A、 when the design implements Layer 2 between the access arid distribution blocksB、 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 blocksF、 when the design implements Layer 2 between the access and distribution blocks
考题
Why do large OSPF networks use a hierarchical design?（）A、to confine network instability to single areas of the network.B、to reduce the complexity of router configurationC、to speed up convergenceD、to lower costs by replacing routers with distribution layer switchesE、to decrease latency by increasing bandwidthF、to reduce routing overhead
考题
单选题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
考题
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？（）AThe 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 tagBNo 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 coreCTraffic 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 tagsDIP 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 offEMAC 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 layerFThe 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
考题
多选题Why do large OSPF networks use a hierarchical design?（）Ato confine network instability to single areas of the network.Bto reduce the complexity of router configurationCto speed up convergenceDto lower costs by replacing routers with distribution layer switchesEto decrease latency by increasing bandwidthFto reduce routing overhead
考题
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.
考题
单选题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
考题
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.
考题
多选题Why do large OSPF networks use a hierarchical design?（）Ato confine network instability to single areas of the networkBto reduce the complexity of router configurationCto speed up convergenceDto lower costs by replacing routers with distribution layer switchesEto decrease latency by increasing bandwidthFto reduce routing overhead
考题
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 blocksB
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 blocksF
when the design implements Layer 2 between the access and distribution blocks
考题
单选题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
考题
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 linkB
to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 linkC
to two core switches from redundant distribution switches connected with Layer 2 linkD
to two core switches from redundant distribution switches connected with Layer 3 linkE
to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO
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