单项选择题

What ensures that voice packets are given priority throughout the network so that conversations arrive intact?（）

A.Centrex
B.Packet encryption
C.Intelligent call routing
D.QoS

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多项选择题

Content networking solutions improve access to which two types of content? （）

A.Media-rich e-learning
B.Video presentations from corporate leaders
C.Real-time financial system reports
D.Text-based enterprise e-mail distribution

多项选择题

There are many reasons why customers lack sufficient security measures on the network. Which two reasons for insufficient security are typical of the customers today?（）

A.the use of hosted email services eliminating the need for local security
B.the perceived costs of security solutions
C.the lack of risk analysis
D.the lack of threats to their network
E.the belief that free security tools are sufficient
F.the desire to avoid unnecessary technologies

多项选择题

What are the two primary advantages of content networking solutions? （）

A.Optimized processing of error notification
B.Optimized processing of bandwidth requests
C.Optimized processing of content delivery
D.Optimized processing of content requests