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YouaremaintainingyourdatabaseinOracle10g.Youarenotusingtherecoverycatalogtomaintainthebackupmetadatainformation.Youwanttoenablethereusablesectionofthecontrolfiletoexpanditselfiftheoldestrecordcannotbereused,andwheneveranewrecordisaddedtothereusablesectionofthecontrolfile.WhichvaluewillyousetfortheCONTROL_FILE_RECORD_KEEP_TIMEparameter?()
A.Zero
B.Oneormore
C.NONE
D.DEFAULT
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切换过程需要由MS、BTS、BSC和MSC参与,以下描述正确地有()
A.MS负责测量无线子系统下行链路性能和周围小区的信号强度B.BTS负责监视每个MS的上行接收电平和质量,以及监测其空闲信道的干扰电平C.BTS负责对MS上报的测量报告进行处理,做出切换判决D.BSC负责对BTS上报的测量报告进行处理,做出切换判决E.MSC负责参与BSC间切换的目标小区确定F.MSC不参与目标小区的确定
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