在一个关系R中,属性之间有非平凡和平凡函数依赖,以及完全和部分函数依赖,则“职工号”函数决定“姓名”既是()函数依赖,又是()函数依赖。
Your network includes Windows Server 2008 R2 Hyper-V failover clusters that support highly available virtual machines (VMs). You manage virtual machines by using Microsoft System Center Virtual Machine Manager (VMM) 2008 R2. You are planning to deploy a large number of VMs to the failover clusters. All VMs must remain available when one node of each cluster is offline. You need to determine the best placement for the new VMs among the clusters. Which two actions should you perform?() For each cluster, set the cluster reserve to 1。 In each cluster, place one host server in maintenance mode。 Determine the placement for each VM by using the data that is generated by running the Get-VMHostRating PowerShell cmdlet。 Determine the placement for each VM by using the data that is generated by running the Get-VMPerformance PowerShell cmdlet。
链霉素属() 繁殖期杀菌剂。 静止期杀菌剂。 快效抑菌剂。 慢效抑菌剂。
简述公司合并的程序。
设一个关系为R(A,B,C,D,E,F),它的最小函数依赖集为FD={A→B,A→C,D→E,D→F},则该关系的候选码为(),该候选码含有()属性。
领导是领导者影响并感召个人和群体去追求某些目标的行为和过程,其活动的内容不包括()