Unlike systems analysis, design, and implementation, systems support cannot sensibly be（ ）into actual phases that a support project must perform. Rather, systems support consists of four ongoing activities that are program maintenance, system recovery, technical support, and system enhancement.Each activity is a type of support project that is（ ）by a particular problem,event, or opportunity encountered with the implemented system.
'>Regardless of how well designed, constructed, and tested a system or application may be, errors or bugs will inevitably occur. Once a system has been（ ），it enters operations and support.
Systems support is the ongoing technical support for user, as well as the maintenance required to fix any errors, omissions,or new requirements that may arise. Before an information system can be（ ）, it must be in operation. System operation is the day-to-day, week-to-week, month-to-month, and year-t-year（ ）of an information system's business processes and application programs.
Unlike systems analysis, design, and implementation, systems support cannot sensibly be（ ）into actual phases that a support project must perform. Rather, systems support consists of four ongoing activities that are program maintenance, system recovery, technical support, and system enhancement.Each activity is a type of support project that is（ ）by a particular problem,event, or opportunity encountered with the implemented system.
A.designed B.implemented C.investigated D.analyzed问题2： A.supported B.tested C.implemented D.constructed问题3： A.construction B.maintenance C.execution D.implementation问题4： A.broke B.formed C.composed D.decomposed问题5： A.triggered B.leaded C.caused D.produced
阅读下列说明，回答【问题1】至【问题3】，将解答填入答题纸的对应栏内。【说明】A公司近期计划启动-一个系统集成项目，合同额预计5000万左右。公司领导安排小张负责项目立项准备工作。小张组织相关技术人员对该项目进行可行性研究,认为该项目基本可行，并形成一份初步可行性研究报告，通过了公司内部评审。一个月后，项目审批通过。A公司迅速组织召开项目招标会。共收到8家单位的投标书，评标委员会专家共有6人，其中经济和技术领域专家共3人。评标结束后，评标委员会公布了4个中标候选人。中标结果公示2天后，A公司选定施工经验丰富的B公司中标
【问题1】(7分)结合案例，请指出A公司在项目立项及招投标阶段的工作不合理的地方。【问题2】(5分)请简述项目可行性研究的内容。【问题3】(5分)结合案例,判断下列选项的正误(填写在答题纸对应栏内，正确的选项填写“√”,错误的选项填写“×")。（1）项目立项阶段包括项目可行性分析、项目审批、项目招投标、项目合同谈判与签订和项目章程制定五个阶段。（）（2）招标人有权自行选择招标代理机构，委托其办理招标事宜。（）（3）国有资金占控股或者占主导地位的依照国家有关规定必须进行招标的项目,必须公开招标。（）（4）投标人少于5个的，不得开标;招标人应当重新招标。（）（5）履约保证金不能超过中标合同金额10%。（）
以下有关哈夫曼树的说法中，错误的是（）。
软件活动主要包括软件描述、（）、软件有效性验证和（），（）定义了软件功能及使用限制。
每一个光纤通道节点至少包含一个硬件端口，按照端口支持的协议标准有不同类型的端口，其中NLPORT是（）。
SYNFlooding攻击的原理是（）。