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单选题
In base e-Commerce module designs， where should firewall perimeters be placed？（）
A
core layer
B
Internet boundary
C
aggregation layer
D
aggregation and core layers
E
access and aggregation layers
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Which smit fastpath should be used to configure Link Aggregation on a server?()
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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.
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Which statement correctly describes a situation in which VRFs are used in the data center?()
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Which two design recommendations are most appropriate when EIGRP is the data center core routing protocol?()
A. Summarize data center subnets.B. Use passive interfaces to ensure appropriate adjacencies.C. Tune the EIGRP timers to enable EIGRP to achieve quicker convergence.D. Adjust the default bandwidth value to ensure proper bandwidth on all links.E. Advertise a default summary route into the data center core from the aggregation layer.
考题
Which of the following is a characteristic of a data center core?()
A. Server-to-server traffic always remains in the core layer.B. The recommended practice is for the core infrastructure to be in Layer 3.C. The boundary between Layer 2 and Layer 3 should be implemented in the aggregation layer.D. The Cisco Express Forwarding hashing algorithm is the default, based on the IP address and Layer 4 port.E. Core layer should run BGP along with an IGP becauseiBGP has a lower administrative distance than any IGP.
考题
In base e－Commerce module designs, where should firewall perimeters be placed?()
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Which unique characteristics of the Data Center Aggregation layer must be considered by an Enterprise Campus designer？（）A、 Layer 3 routing between the Access and Aggregation layers facilities the ability to span VLANsacross multiple access switches， which is a requirement for many server virtualization andclustering technologies.B、 “East-west” server-to-server traffic can travel between aggregation modules by way of the core，but backup and replication traffic typically remains within an aggregation module.C、 Load balancing， firewall service， and other network service are commonly integrated by the useof service modules that are inserted in the aggregation switched.D、 Virtualization tools allow a cost effective approach for redundancy in the network design byusing two or four VDCs from the same physical switch.
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Which two design recommendations are most appropriate when EIGRP is the data center core routing protocol?（）A、Summarize data center subnets.B、Use passive interfaces to ensure appropriate adjacencies.C、Tune the EIGRP timers to enable EIGRP to achieve quicker convergence.D、Adjust the default bandwidth value to ensure proper bandwidth on all links.E、Advertise a default summary route into the data center core from the aggregation layer.
考题
A distribution area provides an aggregation point for which components?（）A、edge devicesB、aggregation switchesC、core devicesD、access-area switches
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Which statement is true regarding the Port Aggregation Protocol？ （）A、Configuration changes made on the port-channel interface apply to all physical ports assigned to the portchannel interface.B、Configuration changes made on a physical port that is a member of a port-channel interface apply to the port-channel interface.C、Configuration changes are not permitted with Port Aggregation Protocol； instead， the standardized Link Aggregation Control Protocol should be used if configuration changes are required.D、The physical port must first be disassociated from the port-channel interface before any configuration changes can be made.
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在S3610交换机上创建包含有端口Ethernet1/0/1，ID为2的聚合端口，其正确命令是（）。A、[SWA] interface bridge-aggregation 2B、[SWA] interface bridge-aggregation 2 port Ethernet1/0/1C、[SWA-Ethernet1/0/1] interface bridge-aggregation 2D、[SWA-Ethernet1/0/1] interface bridge-aggregation 2 mode static
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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.
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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
In base e-Commerce module designs， where should firewall perimeters be placed？ （）A、 core layerB、 Internet boundaryC、 aggregation layerD、 aggregation and core layersE、 access and aggregation layers
考题
Which smit fastpath should be used to configure Link Aggregation on a server?（）A、tcpipB、linkAggC、failoverD、etherchannel
考题
单选题Which smit fastpath should be used to configure Link Aggregation on a server？（）A
tcpipB
linkAggC
failoverD
etherchannel
考题
单选题In base e-Commerce module designs， where should firewall perimeters be placed？ （）A
core layerB
Internet boundaryC
aggregation layerD
aggregation and core layersE
access and aggregation layers
考题
单选题Which of the following is a characteristic of a data center core?（）A
Server-to-server traffic always remains in the core layer.B
The recommended practice is for the core infrastructure to be in Layer 3.C
The boundary between Layer 2 and Layer 3 should be implemented in the aggregation layer.D
The Cisco Express Forwarding hashing algorithm is the default, based on the IP address and Layer 4 port.E
Core layer should run BGP along with an IGP becauseiBGP has a lower administrative distance than any IGP.
考题
单选题Which statement correctly describes a situation in which VRFs are used in the data center？（）A
Partitioning of network resources is enabled.B
VRFs cannot support path isolation from MAN/WAN designs.C
VRFs cannot be used to map a virtualized data center to a MPLS implementation.D
VRFs do not allow for the use of application services with multiple access topologies.E
An access design using a VRF allows for an aggregation layer service module solution.
考题
单选题Which unique characteristics of the Data Center Aggregation layer must be considered by an Enterprise Campus designer？（）A
Layer 3 routing between the Access and Aggregation layers facilities the ability to span VLANsacross multiple access switches， which is a requirement for many server virtualization andclustering technologies.B
“East-west” server-to-server traffic can travel between aggregation modules by way of the core，but backup and replication traffic typically remains within an aggregation module.C
Load balancing， firewall service， and other network service are commonly integrated by the useof service modules that are inserted in the aggregation switched.D
Virtualization tools allow a cost effective approach for redundancy in the network design byusing two or four VDCs from the same physical switch.
考题
单选题Which statement is true regarding the Port Aggregation Protocol？ （）A
Configuration changes made on the port-channel interface apply to all physical ports assigned to the portchannel interface.B
Configuration changes made on a physical port that is a member of a port-channel interface apply to the port-channel interface.C
Configuration changes are not permitted with Port Aggregation Protocol； instead， the standardized Link Aggregation Control Protocol should be used if configuration changes are required.D
The physical port must first be disassociated from the port-channel interface before any configuration changes can be made.
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Which of the following is a characteristic of a data center core？（）A
Server-to-server traffic always remains in the core layer.B
The recommended practice is for the core infrastructure to be in Layer 3.C
The boundary between Layer 2 and Layer 3 should be implemented in the aggregation layer.D
The Cisco Express Forwarding hashing algorithm is the default， based on the IP address andLayer 4 port.E
Core layer should run BGP along with an IGP because iBGP has a lower administrativedistance than any IGP.
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