简答班集体课堂纪律问题产生的主要原因？
You are the network administrator for your company. All servers run Windows Server 2003. All servers are configured with static IP addresses. All client computers run Windows XP Professional. All client computers are configured as DHCP clients.The company has a main office and one branch office. The offices are separated by a router. A DHCP server is deployed in each office. The DHCP servers are named DHCP1 and DHCP2. You configure scopes on the DHCP1 and DHCP2 as shown in the following table. You shut down DHCP1 for scheduled maintenance. While DHCP1 is shut down， client computers in both offices continue to receive correct IP address assignments from DHCP2. You restart DHCP1. Several users report that when they restart their computers， they receive error messages stating that a duplicate IP address exists on the network. You need to ensure that these error messages do not appear when you shut down and restart a DHCP server. You need to ensure that changes you make does not affect the current DHCP functionality. What should you do？（） On each DHCP server， configure a superscope that includes both DHCP scopes.。 Configure the router between the offices to block all broadcasts.。 Modify the Main scope on DHCP1 to include addresses 10.1.16.0 through 10.1.27.254. Modify the Branch scope on DHCP2 to include addresses 10.2.16.0 through 10.2.27.254.。 Modify the Main scope on DHCP2 to include addresses 10.1.16.0 through 10.1.31.254. Modify the Branch scope on DHCP1 to include addresses 10.2.16.0 through 10.2.31.254.。
衡量风险潜在损失的最重要方法是（）。 确定风险的概率分布。 找出风险因素。 层次分析法。 敏感性分析法。
你是TesTestKingIng的台式机管理员。Laura使TesTestKinging财务部门的用户，她使用一台WinXP专业版电脑。她安装了一个新应用软件，该软件能显示在”添加删除程序”列表里。 Laura说每当她双击扩展名为.doc的文件时，这个应用程序便运行。她还说当她右击桌面时，24个新图标出现在New菜单里。Laura请你配置她的电脑以使双击.doc文件时Microsoft Word开始运行，她也想让从New菜单里伤处新图标。你指导Laura卸载这新应用程序，但在卸载后，她却说双击.doc文件却无法打开。她还说那些图标仍然存在。你重新安装那个新软件，可是它仍会在双击.doc文件时运行。你想保存.doc文件关联和删除那些图标，你想尽快搞定它。你也想保证带电脑里的其它文件不受影响。你该如何做？（） 还原电脑到当Laura安装这个软件时创建的保存点。 从备份带上还原System State数据到Laura的电脑。 使用WinXP专业CD－ROM执行自动系统恢复（ASR）还原。 使用最后的正确配置来重启电脑。
耐药性
关于单价合同、总价合同与成本加酬金合同的特点、应用范围的表述中，正确的是（）。
