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多項(xiàng)選擇題

Which two statements are true about network voice traffic？ （Choose two.）（）

A. Voice traffic is affected more by link speed than FTP traffic is.
B. Voice traffic is affected more by packet delays than FTP traffic is.
C. Voice streams involve larger packet sizes than most TCP network traffic involves.
D. Voice traffic is more sensitive to packet loss than TCP network traffic is.
E. Voice traffic requires QOS mechanisms only in heavily loaded network segments.

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