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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
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更多 “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” 相关考题
考题
A route－based VPN is required for which scenario? ()
A. when the remote VPN peer is behind a NAT deviceB. when multiple networks need to be reached across the tunnelC. when the remote VPN peer is a dialup or remote access clientD. when a dynamic routing protocol such as OSPF is required across the VPN
考题
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.
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
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
For what two purposes does the Ethernet protocol use physical addresses?()
A. to uniquely identify devices at Layer 2B. to allow communication with devices on a different networkC. to differentiate a Layer 2 frame from a Layer 3 packetD. to establish a priority system to determine which device gets to transmit firstE. to allow communication between different devices on the same networkF. to allow detection of a remote device when its physical address is unknown
考题
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 configurationB、VLAN mappingC、inter-switch trunk configurationD、UDLD configurationE、first-hop redundancy protocol
考题
When you design QoS on CE for an MPLS Layer 2 VPN， which three things should be considered？（）A、Layer 2 access link QoS designB、enterprise-to-service-provider mapping modelsC、Layer 3 link access QoS designD、service provider service level agreementsE、Layer 2 link access load balancing
考题
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 routersB、redundancy from trunking between distribution layer switchesC、provides first-hop redundancy to clientsD、allows inter-VLAN communication without requiring complexity of routing protocols
考题
Which two series of Cisco Catalyst switches， when placed in the distribution layer， effectively pass high amounts of network traffic between the core and access layers while aggregating access？ （）A、 Cisco Catalyst 2800B、 Cisco Catalyst 3550C、 Cisco Catalyst 3750D、 Cisco Catalyst 4500E、 Cisco Catalyst 6500
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
A route-based VPN is required for which scenario? （）A、when the remote VPN peer is behind a NAT deviceB、when multiple networks need to be reached across the tunnelC、when the remote VPN peer is a dialup or remote access clientD、when a dynamic routing protocol such as OSPF is required across the VPN
考题
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.
考题
What is the most common cause of network congestion？（）A、aggregation congestion occurring at the core layer where the different distribution layer devices feed traffic to the core-layer switchesB、speed mismatches when moving from a low-speed LAN environment to a higher speed WAN environmentC、flapping Ethernet interfaces caused by misconfigured LAN interfacesD、flapping serial interfaces caused by misconfigured WAN interfacesE、speed mismatches when moving from a high-speed LAN environment to a lower speed WAN environment
考题
For what two purposes does the Ethernet protocol use physical addresses？（）A、to uniquely identify devices at Layer 2B、to allow communication with devices on a different networkC、to differentiate a Layer 2 frame from a Layer 3 packetD、to establish a priority system to determine which device gets to transmit firstE、to allow communication between different devices on the same networkF、to allow detection of a remote device when its physical address is unknown
考题
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 layerB、 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 FHRPD、 Include a link between two Access switches to support summarization of routing information
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
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 configurationB
VLAN mappingC
inter-switch trunk configurationD
UDLD configurationE
first-hop redundancy protocol
考题
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 routersB
redundancy from trunking between distribution layer switchesC
provides first-hop redundancy to clientsD
allows inter-VLAN communication without requiring complexity of routing protocols
考题
单选题Which protocol is used for communication between the Junos Pulse client and 802.1X-compliant switches when performing Layer 2 enforcement?（）A
EAPB
RADIUSC
SSLD
EAP-o-HTTP
考题
单选题What is the most common cause of network congestion？（）A
aggregation congestion occurring at the core layer where the different distribution layer devices feed traffic to the core-layer switchesB
speed mismatches when moving from a low-speed LAN environment to a higher speed WAN environmentC
flapping Ethernet interfaces caused by misconfigured LAN interfacesD
flapping serial interfaces caused by misconfigured WAN interfacesE
speed mismatches when moving from a high-speed LAN environment to a lower speed WAN environment
考题
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.
考题
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 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
单选题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 layerB
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 FHRPD
Include a link between two Access switches to support summarization of routing information
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Which two series of Cisco Catalyst switches， when placed in the distribution layer， effectively pass high amounts of network traffic between the core and access layers while aggregating access？ （）ACisco Catalyst 2800BCisco Catalyst 3550CCisco Catalyst 3750DCisco Catalyst 4500ECisco Catalyst 6500
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