首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
计算机
Typically, these are concern with the establishment of(66)the network and with the control of the flow of messages across this
Typically, these are concern with the establishment of(66)the network and with the control of the flow of messages across this
admin
2009-02-15
67
问题
Typically, these are concern with the establishment of(66)the network and with the control of the flow of messages across this channel. The provision of such facilities is only part of the network requirements, however, since in many applications the communicating computers may be of different types. This means that they may use different programming languages and, more importantly, different forms of(67)interface between user(application)program, normally referred to, as application processes or APs, and the underlying communication services may be(68)For example, one computer may be a small single -user computer, while another may be a large(69)system. In the earlier days of computer communication, these issues meantthat only closed communities of computers( that is, from the same manufacturer)could communicate with each other in a meaningful way. IBM’s Systems Network.
Architecture (SNA) and DEC’s Digital Network Architecture (DNA) are just two examples of Communication software packages produced by manufacturers to allow their systems to be int erconnected together. These proprietary packages, however, of which there am still many inexistence, do not address the problem of universal interconnect ability, or open systems interconnection. In an attempt to alleviate this problem,(70), in the late 1970s, formulated a reference model to provide a common basis ( or the coordination of standards developments and to allow existing and evolving standards activities to beplaced into perspective with one another.
选项
A、database
B、data representation
C、protocols
D、data communication
答案
D
解析
data representation:数据呈现。
转载请注明原文地址:https://kaotiyun.com/show/DvUZ777K
本试题收录于:
数据库系统工程师上午基础知识考试题库软考中级分类
0
数据库系统工程师上午基础知识考试
软考中级
相关试题推荐
一个设计良好的软件系统应具有(28)的特征。
IEEE 802.11小组公布了多个正式的WLAN标准,其中(14)工作在2.4GHz的 ISM频段。在WLAN体系结构中,AP的作用是(15)。
(11)是进度控制的一个重要内容。
某公司为多个行业编写客户账目管理软件,张某是该公司的项目经理。现在有一个客户要求进行范围变更,(48)不是此变更所关注的。
关于网络安全服务的叙述中,______是错误的。A.应提供访问控制服务以防止用户否认已接收的信息B.应提供认证服务以保证用户身份的真实性C.应提供数据完整性服务以防止信息在传输过程中被删除D.应提供保密性服务以防止传输的数据被截获或篡改
某软件企业为规范配置管理活动,确保项目配置管理的有效性,避免出现混乱现象,对配置管理库状况进行审计,确定配置库中的配置项及建立基线的正确性、完整性,并且记录审计结果。该企业的配置审计内容应包括______。①评估基线的完整性②检查配置记录是否正确反
________istheprocessofdocumenting,analyzing,tracing,prioritizingandagreeingonrequirementsandthencontrollingchangean
在需求分析阶段,系统分析人员对被设计的系统进行系统分析,确定系统的各项功能、性能需求和设计约束,确定对文档编制的要求。作为本阶段工作的结果,一般地说软件需求规格说明、数据要求说明和________应该编写出来。
EachmachineintheInternetisassignedauniquenetworkaddress,called(),thatisusedtoidentifythemachineforcommunic
随机试题
股票采用代销方式,代销期满后,向投资者出售的股票数量低于拟公开发行股票的数量的多少比例的,为发行失败?()
真空越高,其绝对压力越大。
人们常说“管理是一门艺术”强调的是()。
女,60岁,因慢性支气管炎继发感染住院月余,2天前突发高热,咳嗽加重,咳黄色脓痰,后为乳状脓血痰,伴气急、发绀,右肩胛下散在湿啰音。白细胞计数20×109/L,有中毒颗粒。胸部X线片示肺下野大片絮状浓淡不均阴影。最可能的诊断是
母乳喂养的足月婴儿,应于下列哪个时期服用维生素D
甲、乙二人为夫妻,甲赴外地打工五年未归。甲之合伙人丙与乙协商由乙请求法院宣告甲死亡,甲被宣告死亡后,乙依继承法取得甲的遗产,包括房屋一栋,存款10万元及在合伙企业中的股份若干,后甲返还,则甲有权:
某城市一公交站台前,一位独自坐轮椅的妇女要上车,车站工作人员考虑到她行动不便,轮椅在车上缺乏安全,司机又没法照顾她,只得婉拒这位妇女乘车。该妇女无奈之下,求助于警察。你认为这种情境说明了何种最重要的问题?()
杰克.伦敦规模最大的一部长篇小说是(),代表了他文学创作的最高成就。
EuphemismDefinition-lexicalmeaning:—speakingwithgoodwordsorin【T1】______【T1】______-apolite,roundabout
DeclineofColoradoRiverisSevere[A]TheColoradoRiver,whichflowedacrossthelandwithsuchgustothatitcarvedthemajes
最新回复
(
0
)