什么是单工、半双工通信？

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• 白页（WhitePages）是指（）。

  A、页面基本为白色或淡色的页面

  B、Internet用户集中化的名录工具

  C、用于查询网络信息的网页

  D、设计精良的网页

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• 在Cisco路由器里创建一条静态路由时，网关参数是用来（）。

  A、定义下一跳

  B、定义权值

  C、设静态路由

  D、更新路由表

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• During a planning session， it is determined that a three node cluster （Node ’A’， Node ’B’， and Node ’C’） will meet the customer’s application needs. Node ’B’ will be a hot-standby fallover node for both Node ’A’ and Node ’C’ resource groups.  A serial network for this cluster will require which connections？（）  

  A、 A single serial network between Node ’A’ and Node ’B’ and Node ’C’

  B、 A point-to-point link between Node ’A’ and Node ’C’，and Node ’B’ and Node ’C’

  C、 A serial network between Node ’A’ and Node ’C’，and a serial network between Node ’B’ and Node ’C’

  D、 A point-to-point link between Node ’A’ and Node ’B’ Node ’B’ and Node ’C’ and Node ’A’ ad Node ’C’

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• Company.com has a six-node concurrent resource group with an application that is accessed by  a web connection to the cluster nodes. How is the workload moved to another cluster node during a node failure？（）  

  A、 The concurrent application must control the web interface through application monitoring.

  B、 A second resource group will be required to move the web application and IP label to a new node during a node failure.

  C、 The concurrent resource group can support multiple IP labels through IP aliasing so all IP labels are defined in the concurrent resource group.

  D、 The dynamic node priority facility in HACMP will relocate the web application and the IP label，if it is correctly defined in the application start and stop script.

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• Company.com wishes to use IPAT via IP replacement in a two-node mutual cluster. Each node  has two Ethernet 10/100/1000 adapters. Throughout the planning session，the customer has asked questions about subnet and VLAN requirements for the intended network topology.  Which of the following best describes the network requirements？（）  

  A、 The service IP addresses must be on a separate subnet and VLAN.

  B、 The non-service and service IP addresses must be on the same subnet and on the same VLAN.

  C、 All interfaces on a node must be in different subnets. All subnets must be on the same VLAN. 

  D、 One non-service and one service IP address must be on the same logical subnet. All interfaces must be on the same VLAN.

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