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多項選擇題

Which two statements are true about Voice over IP (VoIP) packet delivery in a digital infrastructure? ()

A. Packets can arrive out of order.
B. Packets must take the same path to the destination.
C. Once packets are received at the destination router, the router performs sampling to ensure the quality of the voice traffic.
D. Packets can experience varying delays across the network.
E. Packets containing voice samples are sequentially numbered by default, allowing for reordering upon arrival at the terminal router along the path.

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