Which command would you use to determine what database backups are currently available for restore？（） list database backup。 report database backup。 list backup of database。 list summary backup。 report backup of database。
某房地产开发公司兴建住宅楼工程。招标文件规定，工程为砖混结构，5层，工期265日，固定总价合同模式。至投标阶段工程施工图设计尚未全部完成。在此过程中发生如下事件：
事件一：施工单位中标价格为1350万元。但是经双方3轮艰苦谈判，最终确定合同价为l200万元，并据此签订了施工承包合同。
事件二：在投标过程中，某施工单位未到现场进行勘察，认为工程结构简单并且对施工现场、周围环境非常熟悉，另外考虑工期不到一年，市场材料价格不会发生太大的变化，于是按照企业以往积累的经验编制标书。
事件三：部分合同条款中规定：l.施工单位按照开发公司批准的施工组织设计组织施工，施工单位不承担因此引起的工期延误和费用增加责任。
2.开发公司向施工单位提供场地的工程地质和主要管线资料，供施工单位参考使用。事件二中施工单位承担的风险是哪些？
A customer wants to add a new application to their existing IBM System Storage DS5300. Theyexpect that the new application will require a minimum of 15，000 additional IOPS. What toolshould be used to determine what additional disk is required to effectively add the newapplication？（） eConfig。 Disk Magic。 Capacity Magic。 Tivoli Storage Productivity Center for Data。
The customer has an IBM Enterprise Storage Server 800 coming off lease this year. Themaintenance charges are becoming very expensive and they are looking at a new storage solutionto attach to their mainframe environment. Which of the following solutions would be most costeffective?（） DS8300。 DS8700 。 Storwize V7000 。 XIV Storage System。
人类生态学的主要缺点是什么？
A customer has an IBM System Storage DS8100 at their primary site and a DS6800 at their recovery site, 9.5 kilometers away. They want to replicate data for disaster recovery backup with the least impact on performance.
Which of the following products best accomplishes this task?（）
