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
64
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
有关成本基准计划的描述,不正确的是(8)。
公钥密码是(18)。常用的公钥加密算法有(19),它可以实现加密和数字签名,它的一个比较知名的应用是(20),这种应用的协商层用公钥方式进行身份认证,记录层涉及到对应用程序提供的信息的分段、压缩、数据认证和加密。
模块化软件开发就是一种分离关注点(SeparationofConcerns)的手段,模块化应当遵循(30)的原则,提高模块的独立性。
软件产品线主要由(12)和产品集合两部分组成。
有8套计算机应用软件A、B、C、D、W、X、Y、Z要进行系统集成安装。虽然每套应用软件占用的存储空间不大,但部分应用软件调用操作系统底层相同的动态链接库(DLL),出于安全考虑,某些应用软件不能安装在同一台服务器上。在图4-2中,符号“×”表示相应的两套计
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
(2013下项管)右图为一个UML序列图的一部分,正确的理解是______。①订单类发消息给客户类;②客户类发消息给订单类;③订单类调用客户类中的”验证客户”操作;④客户类调用订单类中的”验证客户”操作
When most people refer to multimedia, they generally mean the combination of two or more continuous media, usually with some use
随机试题
某工程从英国购进一批水泥,经见证取样后送检复试,其主要检测项目有()。
童年时期尿路梗阻最常见的原因是
A.《希波克拉底誓言》B.《千金要方》C.《纪念白求恩》D.《赫尔辛基宜言》E.《夏威夷宣言》
工作A有三项紧后工作B、C、D,其持续时间分别为:B=6、C=8、D=7,LFB=14、LFC=16、LFD=14,则LFA为()。
发行人应披露本次股票上市前首次公开发行股票的情况,包括( )。
场内申购赎回ETF采用()的方式。
某企业为增值税一般纳税人,从外地购入原材料6000吨,收到增值税专用发票上注明的售价为每吨1200元,增值税税款为936000元;运输途中取得的运输业增值税专用发票上注明的运费为60000元,增值税额为5400元;另发生装卸费10000元,途中保险费为18
社会保险特征不包括()
阅读以下关于Linux操作系统Samba服务器配置的技术说明,根据要求回答问题1~问题6。【说明】某软件开发公司架构了一台基于Linux操作系统的Samba服务器。公司员工需要一个共享的800MB硬盘空间以便能随时交换文件,且为每位员工在服务器上
【B1】【B6】
最新回复
(
0
)