You are working with a client to classify the different types of application traffic they will have on their network and to assign a QoS value to each traffic flow. The client has identified the following applications: Internet traffic, Oracle, network-based backups, AOL Instant Messenger, IP routing, voice, and voice signaling. Given these types of applications, how many different classes will need to be configured in QoS?（） [" 8"," 6"," 9"," 5"]
位错的滑移
Which three critical elements does the Cisco Integrated Security Incorporate?（） [" Cisco Trust and Identity Management Solution"," Cisco Secure Connectivity Solution"," Cisco Threat Defense Solution"," Cisco Switching Solution"," Cisco Storage Solution"," Cisco Content Networking Solutio"]
Photoshop中提供的辅助工具有标尺、参考线、网格工具、度量工具。
以下哪些项是工程建设增值主要表现为（）。 ["确保工程建设的安全","提高工程质量","有利于投资（成本）控制","有利于进度的控制","确保工程使用安全"]
证券投资基金有什么优势？
