Fred finds a packet that his protocol analyzer shows with both PSH and URG set. What type of packet is he looking at, and what do the flags mean?
A. A UDP packet; PSH and URG are used to indicate that the data should be sent at high speed
B. A TCP packet; PSH and URG are used to clear the buffer and indicate that the data is urgent
C. A TCP packet; PSH and URG are used to preset the header and indicate that the speed of the network is unregulated
D. A UDP packet; PSH and URG are used to indicate that the UDP buffer should be cleared and that the data is urgent
Answer: B. A TCP packet; PSH and URG are used to clear the buffer and indicate that the data is urgent
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