某公司数据库中的元件关系模式为P(元件号,元件名称,供应商,供应商所在地,库存量),函数依赖集F如下所示:F={元件号→元件名称,(元件号,供应商)→库存量,供应商→供应商所在地}元件关系的主键为(54),该关系存在冗余以及插入异常和删除异常等问题。为了解决这一问题需要将元件关系分解(55),分解后的关系模式可以达到(56)。
In the fields of physical security and information security,access control is the selective restriction of access to a place or other resource.The act of accessing may mean consuming,entering,or using.Permission to access a resource is called authorization(授权).
In the fields of physical security and information security,access control is the selective restriction of access to a place or other resource.The act of accessing may mean consuming,entering,or using.Permission to access a resource is called authorization(授权).
In the fields of physical security and information security,access control is the selective restriction of access to a place or other resource.The act of accessing may mean consuming,entering,or using.Permission to access a resource is called authorization(授权).
In the fields of physical security and information security,access control is the selective restriction of access to a place or other resource.The act of accessing may mean consuming,entering,or using.Permission to access a resource is called authorization(授权).
In the fields of physical security and information security,access control is the selective restriction of access to a place or other resource.The act of accessing may mean consuming,entering,or using.Permission to access a resource is called authorization(授权).
在下图的SNMP配置中,能够响应Manager2的getRequest请求的是()。
某PC的Internet协议属性参数如下图所示,默认网关的IP地址是()。
默认情况下,FTP服务器的控制端口为(66),上传文件时的端口为(67)。
使用ping命令可以进行网络检测,在进行一系列检测时,按照由近及远原则,首先执行的是()。
默认情况下,FTP服务器的控制端口为(66),上传文件时的端口为(67)。
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