Which of the following statement about QoS in DiffServ mode is false?

Question

Jaimie Lloyd · Accepted Answer

Before sending packets, the application program needs to confirm that the network has reserved resources for packet transmission.

Jaimie Lloyd · Answer

The parameter field in the IP packet header informs devices on the network of the QoS requirements of the application.

Jaimie Lloyd · Answer

Every device on the packet transmission paths can learn the service request types by analyzing the IP packet header.

Jaimie Lloyd · Answer

DiffServ is a QoS solution based on packets.

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