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网络工程师考试2018年下半年上午试题解析

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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 试题解析:

samba只能支持部分的Windows的域用户管理功能,早期的samba则基本不支持,所以这道题目只适合选D。 答案:D

● ADSL采用的两种接入方式是 (64) 。

(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 试题解析:

ADSL有两种接入方式,即专线方式和虚拟拨号方式。ADSL虚拟拨号就是上网的操作和普通56K Modem拨号一样,有账号验证、IP地址分配等过程。ADSL连接的是ADSL虚拟专网接入的服务器。根据网络类型的不同又分为ADSL虚拟拨号接入和Ethernet局域网虚拟拨号方式两类,由于局域网虚拟拨号方式具有安装维护简单等特点。ADSL专线接入不同于虚拟拨号方式,它采用一种直接使用TCP/IP协议类似于专线的接入方式,用户连接和配置好ADSL MODEM后,在自己的PC的网络设置里设置好相应的TCP/IP协议及网络参数(IP和掩码、网关等都由局端事先分配好),开机后,用户端和局端会自动建立起一条链路。所以,ADSL的专线接入方式是以有固定IP、自动连接等特点的类似专线的方式。 答案:A

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

在Web Services中,各个实体之间的通信都是基于SOAP(Simple Object Access Protocol,简单对象访问协议)来实现的,可以说SOAP是整个Web服务的通信基础。 答案:A

● 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.

(66)A.automated B.distinguished C.authenticated D.destructed (67)A.crisis B.security C.favorable D.excellent (68)A.constructive B.reductive C.reactive D.productive (69)A.defense B.intrusion C.inbreak D.protection (70)A.port B.connection C.threat D.insurance

试题解析:

学好英语,一切都很简单。

答案:(66)C (67)B (68)C (69)A (70)C

● 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.

(71)A.advantages B.resources C.benefits D.precedents (72)A.profits B.costs C.resources D.powers (73)A.system B.infrastructure C.hardware D.link (74)A.content B.position C.power D.capacity

(75)A.solutions B.networks C.interfaces D.connections 试题解析:

学好英语,一切都很简单。

答案:(71)B (72)C (73)B (74)D (75)A

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