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
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
相关考题：
● TCP/IP communication protocol contains four layers. From bottom to top, the four layers are __(71)__.（71）A．network interface layer, internet layer, transport layer and application layerB．internet layer, network interface layer, transport layer and application layerC．network interface layer, transport layer, network interface layer and application layerD．application layer, transport layer, internet layer and network interface layer
TCP/IP communication protocol contains four layers． From bottom to top, the four layers are __（71）__．A.network interface layer, internet layer, transport layer and application layerB.internet layer, network interface layer, transport layer and application layerC.network interface layer, transport layer, network interface layer and application layerD.application layer, transport layer, internet layer and network interface layer
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
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
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
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.
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.
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
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
A network is deployed using best practices of the enterprise campus network model， including users with desktop computers connected via IP phones. Given that all components are QoS-capable， where are the two optimal locations for trust boundaries to be configured by the network administrator？（）A、hostB、IP phoneC、access layer switchD、distribution layer switchE、core layer switch
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
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
In the 7-layer OSI model, which layer switching will take place?（）A、Layer twoB、Layer fourC、Layer oneD、Layer three
Which of these statements is correct regarding SSO and Cisco NSF?（）A、Utilizing Cisco NSF in Layer 2 environments can reduce outages to one to three seconds.B、Utilizing SSO in Layer 3 environments can reduce outages to one to three seconds.C、Distribution switches are single points of failure causing outages for the end devices.D、Utilizing Cisco NSF and SSO in a Layer 2 environment can reduce outages to less than one second.E、NSF and SSO with redundant supervisors have the most impact on outages at the access layer.
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
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
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.
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?（）AOSPF is not supported by the designBHSRP is not supported by the designCpreempt tuning of the default gateway is neededDthe design implements Layer 3 between the access switch and the distribution switch
单选题When is a first-hop redundancy protocol needed in the distribution layer?（）Awhen HSRP is not supported by the designBwhen multiple vendor devices need to be supportedCwhen preempt tuning of the default gateway is neededDwhen a robust method of backing up the default gateway is neededEwhen the design implements Layer 2 between the access switch and the distribution switchFwhen the design implements Layer 3 between the access switch and the distribution switch
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
单选题What benefit results from implementation of Layer 3 switching versus Layer 2 switching in a fully meshed campus network？（）Aease of IP address assignment versus use of external routersBredundancy from trunking between distribution layer switchesCprovides first-hop redundancy to clientsDallows inter-VLAN communication without requiring complexity of routing protocols
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?（）AUse default Layer 4 hash in core.BUse default Layer 3 hash in distribution.CUse default Layer 4 hash in distribution.DUse default Layer 3 hash in core and Layer 3 + Layer 4 hash in distribution layer.
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？（）ARouting should occur at the access layer ifvoice VLANs are utilized. Otherwise， routing should occur at the distribution layer.BRouting should always be performed at the distribution layer.CVLANs should be localized to a switch.DVLANs should be localized to a single switch unlessvoice VLANs are being utilized.ERouting should not be performed between VLANs located on separate switches.
单选题Which of these recommended designs provides the highest availability?（）Amap the Layer 2 VLAN number to the Layer 3 subnetBcontrol route propagation to edge switches using distribute listsCuse a Layer 2 distribution interconnection link with HSRP or GLBPDuse a Layer 3 distribution interconnection link with HSRP or GLBPEuse equal-cost Layer 3 load balancing on all links to limit the scope of queries in EIGRP
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.
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
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
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