对比磁盘，磁带有哪些优势：（） ["每GB成本略微低一些","能够保存相当数量的数据","拥有更轻便的介质","以上所有","以上均不对"]
Which of the following NIS daemons must run on an AIX NIS client machine？（） ["ypbind","ypserv","ypwhich","yppasswdd"]
什么是有机物污染？
属于高压液化气有（）。 ["甲烷；","氢气；","二氧化碳；","六氟乙烷"]
A customer with a single IBM System Storage DS8100 reports severe performance problems for some of their applications when a particular data warehousing application creates a heavy load. What is the most cost effective way to resolve this issue（） ["add additional disks to the DS8100","add more cache to the DS8100","move affected volumes to a different disk enclosure","implement TPC for Disk to monitor performance"]
生物反应器
