专业技术中级资格中级资格网络工程师基础知识全国计算机技术与软件专业技术资格（水平）考试&2006年下半年 网络工程师 上午试卷

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• 51● 在IPv4中，组播地址是 （62） 地址。

  A.A类

  B.B类

  C.C类

  D.D类

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• 52● 以下关于Samba的描述中，不正确的是 （63） 。

  A.Samba采用SMB协议

  B.Samba支持WINS名字解析

  C.Samba向Linux客户端提供文件和打印共享服务

  D.Samba不支持Windows的域用户管理

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• 53● ADSL采用的两种接入方式是 （64） 。

  A.虚拟拨号接入和专线接入

  B.虚拟拨号接入和虚电路接入

  C.虚电路接入和专线接入

  D.拨号虚电路接入和专线接入

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• 54● 在Web Services中，客户与服务之间的标准通信协议是 （65） 。

  A.简单对象访问协议

  B.超文本传输协议

  C.统一注册与发现协议

  D.远程对象访问协议

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• 55● NAC’s（Network Access Control）role is to restrict network access to only compliant endpoints and （66） users. However, NAC is not a complete LAN （67） solution; additional proactive and （68） security measures must be implemented. Nevis is the first and only comprehensive LAN security solution that combines deep security processing of every packet at 10Gbps, ensuring a high level of security plus application availability and performance. Nevis integrates NAC as the first line of LAN security （69） . In addition to NAC, enterprises need to implement role-based network access control as well as critical proactive security measures —real-time, multilevel （70） inspection and microsecond threat containment.

  A.automated

  B.distinguished

  C.authenticated

  D.destructed

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• 56● Virtualization is an approach to IT that pools and shares （71） so that utilization is optimized and supplies automatically meet demand. Traditional IT environments are often silos, where both technology and human （72） are aligned around an application or business function. With a virtualized （73） , people, processes, and technology are focused on meeting service levels,  （74） is allocated dynamically, resources are optimized, and the entire infrastructure is simplified and flexible. We offer a broad spectrum of virtualization （75） that allows customers to choose the most appropriate path and optimization focus for their IT infrastructure resources.

  A.advantages

  B.resources

  C.benefits

  D.precedents

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