气体爆炸危险场所必须正确划分危险等级，正常生产时不可能出现爆炸性气体区域为（）区。 0。 1。 2。
You are a network administrator for your company. All domain controllers run Windows Server 2003. The network contains 50 Windows 98 client computers， 300 Windows 2000 Professional computers， and 150 Windows XP Professional computers. According to the network design specification， the Kerberos version 5 authentication protocol must be used for all client computers on the internal network. You need to ensure that Kerberos version 5 authentication is used for all client computers on the internal network. What should you do？ （） On each domain controller, disable Server Message Block (SMB) signing and encryption of the secure channel traffic. 。 Replace all Windows 98 computers with new Windows XP Professional computers. 。 Install the Active Directory Client Extensions software on the Windows 98 computers. 。 Upgrade all Windows 98 computers to Windows NT Workstation 4.0.。
市场经济的特征包括（） 市场主体的自主性。 市场关系的平等性。 市场运行的随意性。 市场的统一开放性。
Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 (SP2). All client computers run Windows XP Service Pack 3 (SP3). A user named User1 is responsible for deleting old, unused files from departmental shared folders. User1 performs the task by using a Remote Desktop connection to each file server. User1 is a member of a global group named IT. User1 attempts to delete a file from the Marketing folder and receives an access denied message. The share permissions for the Marketing folder are shown in the Share exhibit. (Click the Exhibit button.) The NTFS permissions for the Marketing folder are shown in the Folder exhibit. (Click the Exhibit button.) You need to ensure that User1 can delete the file from the Marketing folder. Which permission should you grant to User1? （） Allow-Write permissions on the Marketing folder.。 Allow-Modify permissions on the Marketing folder.。 Allow-Change permissions on the Marketing share.。 Allow-Full Control permissions on the Marketing share.。
试述氢对焊缝金属的影响。
您有一台运行Windows 7 的计算机。该计算机是工作组的一个成员。您需要确保如果忘了密码，可以解密这台计算机上的“加密文件系统 （EFS）”。要实现该目标，有哪两种方法可行？（）
