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OSPF协议把网络划分成4种区域(Area)，其中(67)不接受本地自治系统以外的路由信息，对自治系统以外的目标采用默认路由0.0.0.0。

A.分支区域

B.标准区域

C.主干区域

D.存根区域

在Linux中，可以使用（68）命令为计算机配置IP地址。

A.ifconfig

B.config

C.ip-address

D.ipconfig

据统计，截至2017年2月，全球一半以上的网站已使用HTTPS协议进行数据传输，原HTTP协议默认使用（69）端口，HTTPS使用（70）作为加密协议，默认使用443端口。

（69）A.80

B.88

C.8080

D.880

（70）A.RSA

B.SSL

C.SSH

D.SHA-1

The purpose of the systems analysis phase is to build a logical model of the new system.The first step is(71)，where you investigate business processes and document what the new system must do to satisfy users.This step continues the investigation that began during the(72).You use the fact-finding results to build business models，data and process models，and object models.The deliverable for the systems analysis phase is the（73），which describes management and user requirements，costs and benefits，and outlines alternative development strategies.

The purpose of the systems design phase is to create a physical model that will satisfy all documented requirements for the system.During the systems design phase，you need to determine the（74），which programmers will use to transform the logical design into program modules and code.The deliverable for this phase is the（75），which is presented to management and users for review and approval.

(71)A.system logical modeling

B.use case modeling

C.requirements modeling

D.application modeling

(72)A.systems planning phase

B.systems modeling phase

C.systems analysis phase

D.systems design phase.

(73)A.system charter

B.system scope definition

C.system blueprint

D.system requirements document

(74)A.application architecture

B.system data model

C.system process model

D.implement environment

(75)A.system architecture description

B.system design specification

C.system technique architecture

D.physical deployment architecture