What are two advantages that the Cisco 3900 Series Integrated Services Routers have over the rest of the integrated services routers？ （） Telepresence-capable。 high-density service virtualization。 intelligent integration of security。 wireless services。 unified communicatio。
When you connect an external monitor to your portable computer， the same image appears on both monitors. You need to drag a window from one monitor to the other. What should you do？（） Change the display setting to extend the desktop.。 In the Microsoft Windows Mobility Center window， turn on the Presentation Settings feature. 。 Configure the external monitor as the primary display and the built-in monitor as the secondary display.。 Change the secondary display resolution settings to make them equal to or less than the primary display resolution settings.。
需在基坑顶边堆放弃土时，任何情况下，弃土堆坡脚至基坑上边缘的距离不得小于（）。 1.0m。 《给排水管道施工与验收规范》GB50268-2008规定，放坡开槽时不小于0.8m。。 1.5m。 1.8m。
ou have a server that runs Windows Server 2003 Service Pack 2 (SP2).You discover that the server has a large number of open connections that originate from the IP address 192.168.1.121. You need to identify the host name of the computer that uses the IP address 192.168.1.121. Which command should you run? （） Arp –a 。 Netstat -r 。 Net view \\192.168.1.121 。 Ping –a 192.168.1.121。
控制器是人一机系统的重要组成部分，下列（）属于旋转控制器。 脚踏板。 手轮。 开关杆。 手闸。
非系统性风险也称（）风险。
