什么原因引起激光打印机打印出的文档全篇都是黑色的?()
A、激光成像出错
B、墨盒没有碳粉了
C、转印辊没通电
D、充电辊没通电
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综合计入设备IAD是适用于小企业和家庭用户的接入产品,可提供语音、数据、多媒体业务的综合接入。()
A、对
B、错
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You issue this RMAN command: RMAN> create script Level0Backup { backup incremental level 0 format ‘/u01/db01/backup/%d_%_Sp’ fileperset 5 (database include current controlfile); sql ‘alter database archive log current’; } Which three statements are true about the Level0Backup script you just created?()
AThe script is stored only in the control file.
BThe script is stored only in the recover catalog.
CThe script can be executed only by using the RMAN RUN command.
DThe commands of the script can be displayed with the LIST command.
EThe commands of the script can be displayed with the PRINT command.
FThe commands of the script can be displayed with the REPORT command.
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What is the default export routing policy for RIP?()
A、Accept all local routes.
B、Accept all RIP routes.
C、Accept no routes.
D、Accept all direct routes.
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查询设计器中的“筛选”选项卡的作用是( )。
A、查看生成的SQL代码
B、指定查询条件
C、增加或删除查询表
D、选择所要查询的字段
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Which two can be used to create and apply an export policy that advertises static routes to RIP neighbors?()
Aset protocols rip export demo
Bedit policy-options policy-statement demo set term 1 from protocol static set term 1 then accept
Cedit policy-options policy-statement demo set term 1 from protocol static accept
Dset protocols rip group internal export demo