大型信息系统具备的特点包括 （ ） 。① 规模庞大，包含的独立运行和管理的子系统多② 跨地域性，系统分布广阔，部署不集中③ 提供的业务种类繁多，业务的处理逻辑复杂④ 采用虚拟化技术管理软硬件环境⑤ 采用国际领先的软硬件设备⑥ 处理的业务和信息量大，存储的数据复杂、内容多且形式多样
- A.①②③⑥
- B.②③⑤⑥
- C.②③④⑤
- D.①②③④⑤⑥
正确答案及解析
正确答案
解析
大型信息系统是指以信息技术和通信技术为职称，规模庞大，分布广阔，采用多级网络结构，跨越多个安全域，处理海量的，复杂且形式多样的数据，提供多种类型应用的大系统。大型信息系统作为一种典型的大系统，除具有大系统的一些共性特点外，同时还具备以下特点：规模庞大、跨地域性、网络结构复杂、业务种类多、数据量大、用户多。
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