IDC是Internet Data Center的英文缩写，中文名称为（）。它通过与某一骨干互联网高速连接，借助丰富的网络资源向网站企业和传统企业提供大规模、高质量、安全可靠的专业化服务器托管、虚拟主机等业务。

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.

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.

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.

A . Never use passive interfaces. B . Use NSSA areas from the core down. C . Use totally stub areas to stop type 3 LSAs. D . Use the lowest Ethernet interface IP address as the router ID. E . Tune OSPF timers to enable OSPF to achieve quicker convergence.

A . more efficient power consumption B . fewer applications per server C . less rack space D . more efficient routing E . more control over each server F . simplified cabling

A . UCS Manager B . fabric interconnect C . service profiles D . expansion modules E . virtual interface card

A .  Cisco NX-OS Software does not support PIM dense mode. B .  The command ip multicast-routing must be enabled in Cisco NX-OS Software before any multicast configuration is possible on the switch. C .  PIM CLI configuration and verification commands are not available until you enable the PIM feature with the feature pim command. D .  Cisco NX-OS Software supports multicast routing per Layer 3 VRF instance. E .  The default PIM operational mode on the Cisco Nexus 7000 switch is SSM.

A . 数据存储备份服务 B . 网络运行监测 C . 异地灾难备份 D . VIP机房出租

A . it leverages low-speed interfaces B . only one configuration is used for all blades C . storage, computing and networking services are combined onto one blade D . it is A pra-as-you-go incremental deployment E . server replacement is as easy as replacing the physical blade

A .  Never use passive interfaces. B .  Use NSSA areas from the core down. C .  Use totally stub areas to stop type 3 LSAs. D .  Use the lowest Ethernet interface IP address as the router ID. E .  Tune OSPF timers to enable OSPF to achieve quicker convergence

A . Install a separate instance of SQL Server 2005 for each of the databases on a single server. B . Create a SQL Server database for each of the databases in a single instance of SQL Server 2005. C . Import the data from each of the databases into a single database in an instance of SQL Server 2005. D . Install a default instance of SQL Server 2005 on three separate servers. Use one server for each of the databases.

A . extended memory sipport B . storage-intensive platform C . enterprise-focused design D . infiniband networking E . blade-based deployments F . cost-effiective server

A .  virtualization B .  unified I/O C .  support for 48-port Gb/s line card D .  support for Data Center Service Modules E .  high performance F .  high availability

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.

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.

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.

A . demand among users for access to information anytime, anywhere B . desire to use the same vender for desktop and server deployments C . existing equipment has reached and of life D . increasing operational costs of managing data centers E . architectures that is inflexible and inefficient F . selecting best-performing vendors for each individual component

A . It provides multiprotocol support. B . It provides improved availability, strong security, and business continuance measures. C . It enables you to connect Cisco VSAN technology and DAS technology. D . It reduces cost and complexity by providing an easy transition to evolving technologies. E . It allows you to create separate networks on the VSAN. F . It allows you to migrate to new technologies without a complete equipment upgrade.

A . 主机租赁 B . 网络运行监测 C . 虚拟主机 D . VIP机房出租

A . p5-520 running Virtual I/O Server B . p690 running AIX 5L V5.3 C . p5-510 running AIX 5L V5.2 D . p5-520 running two dedicated processor partitio

A . UCS Manager B . fabric interconnect C . service profiles D . expansion modules E . virtual interface card

A.There are dangers posed by hackers. B.There is only one Visa center in North America. C.There is considerable growth in mobile purchases. D.There are a large number of daily transactions processed here.

A．64颗物理处理器 B．4TB内存 C．64节点的故障转移君群集 D．640个处理器内核 E．250个用户 F．500台客户端设备