CS 6250 QUIZZES ACTUAL LATEST CERTIFIED

CS 6250 QUIZZES (ACTUAL ) LATEST CERTIFIED

QUESTIONS AND VERIFIED CORRECT ANSWERS I GRADED A+

The transport layer offers a logical connection between hosts given that the hosts reside in the same network - --- ANSWER-----False

A sender receives a message from the application layer it encapsulates it with the transport layer header before passing it down to the network layer - ---ANSWER-----True

A host cannot maintain UDP and TCP sockets simultaneously - ---ANSWER-----False

What is the identifier of a UDP socket - ---ANSWER-----tuple of destination ip address and port

TCP socket identifier - ---ANSWER-----4 tuple of destination ip and port, source ip and port

UDP is more lightweight than tcp - ---ANSWER-----True

When two hosts use UDP they need to signal the end of sending data to each other - ---ANSWER-----false

UDP can increase and decrease the pace the sender sends data - ---ANSWER-----False 1 / 2

UDP offers basic error checking - ---ANSWER-----True

How does TCP detect packet loss - ---ANSWER-----timeouts and duplicate acknowledgements

tcp offers: - ---ANSWER-----in order delivery, flow control,

congestion control

flow control - ---ANSWER-----protects receivers buffer

congestions control - ---ANSWER-----protects network congestion

Consider TCP Reno, congestion window is cut in half in the event of a timeout or duplicate acknowledgement - --- ANSWER-----False

TCP Cubis was designed for better network utilization and lower network congesetion - ---ANSWER-----True

TCP Cubic congestion window growth is designed to not overflow the receiver's buffer - ---ANSWER-----False

TCP cubic uses a cubic function to increse the congestion windows - ---ANSWER-----True

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