3.1-4 Transport-layer services using UDP.   Check all of the services below that are provided by the UDP protocol.Group of answer choicesA message abstraction, that preserves boundaries between message data sent in different socket send calls at the sender.A congestion control service to ensure that multiple senders do not overload network links.In-order data deliveryA guarantee on the maximum amount of time needed to deliver data from sender to receiver.Reliable data delivery.A flow-control service that ensures that a sender will not send at such a high rate so as to overflow receiving host buffers.A byte stream abstraction, that does not preserve boundaries between message data sent in different socket send calls at the sender.A guarantee on the minimum amount of throughput that will be provided between sender and receiver.

Check all of the services below that are provided by the UDP protocol.Group of answer choicesA congestion control service to ensure that multiple senders do not overload network links.In-order data deliveryA message abstraction, that preserves boundaries between message data sent in different socket send calls at the sender.A guarantee on the maximum amount of time needed to deliver data from sender to receiver.A guarantee on the minimum amount of throughput that will be provided between sender and receiver.Reliable data delivery.A flow-control service that ensures that a sender will not send at such a high rate so as to overflow receiving host buffers.A byte stream abstraction, that does not preserve boundaries between message data sent in different socket send calls at the sender.

Check all of the services below that are provided by the TCP protocol.Group of answer choicesA guarantee on the minimum amount of throughput that will be provided between sender and receiver.In-order data deliveryA byte stream abstraction, that does not preserve boundaries between message data sent in different socket send calls at the sender.A message abstraction, that preserves boundaries between message data sent in different socket send calls at the sender.A guarantee on the maximum amount of time needed to deliver data from sender to receiver.Reliable data delivery.A congestion control service to ensure that multiple senders do not overload network links.A flow-control service that ensures that a sender will not send at such a high rate so as to overflow receiving host buffers.

ransport layer services using TCP.  Check all of the services below that are provided by the TCP protocol.Group of answer choicesA guarantee on the minimum amount of throughput that will be provided between sender and receiver.A congestion control service to ensure that multiple senders do not overload network links.A guarantee on the maximum amount of time needed to deliver data from sender to receiver.A flow-control service that ensures that a sender will not send at such a high rate so as to overflow receiving host buffers.Reliable data delivery.A byte stream abstraction, that does not preserve boundaries between message data sent in different socket send calls at the sender.A message abstraction, that preserves boundaries between message data sent in different socket send calls at the sender.In-order data delivery

.1-3 UDP service. When an application uses a UDP socket, what transport services are provided to the application by UDP? Check all that apply.Group of answer choicesCongestion control.  The service will control senders so that the senders do not collectively send more data than links in the network can handle.Real-time delivery. The service will guarantee that data will be delivered to the receiver within a specified time bound.Best effort service.  The service will make a best effort to deliver data to the destination but makes no guarantees that any particular segment of data will actually get there.Loss-free data transfer. The service will reliably transfer all data to the receiver, recovering from packets dropped in the network due to router buffer overflow.Flow Control. The provided service will ensure that the sender does not send so fast as to overflow receiver buffers.Throughput guarantee. The socket can be configured to provide a minimum throughput guarantee between sender and receiver.

2.1-4 TCP service. When an application uses a TCP socket, what transport services are provided to the application by TCP?  Check all that apply.Group of answer choicesFlow Control. The provided service will ensure that the sender does not send so fast as to overflow receiver buffers.Throughput guarantee. The socket can be configured to provide a minimum throughput guarantee between sender and receiver.Real-time delivery. The service will guarantee that data will be delivered to the receiver within a specified time bound.Best effort service.  The service will make a best effort to deliver data to the destination but makes no guarantees that any particular segment of data will actually get there.Congestion control.  The service will control senders so that the senders do not collectively send more data than links in the network can handle.Loss-free data transfer. The service will reliably transfer all data to the receiver, recovering from packets dropped in the network due to router buffer overflow.