多項選擇題QoS refers to the ability of a network to provide improved service, over various underlying technologies, to select network traffic. Which two traits are inherent to QoS?()

A. reference to network ability to provide improved service to all network traffic
B. reduction in delay, jitter, and packet loss
C. equal handling of all packets
D. support for real-time applications
E. best-effort actions


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3.單項選擇題What statement is true of how a customer acquires Intrusion Prevention and Content Security services in a  Cisco security solution?()

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4.多項選擇題What are three characteristics that buyers of Cisco Small Business routers typically look for?()

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