What Three Services Are Provided By The Transport Layer? (Choose Three.)
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What three services are provided by the transport layer? (Choose three.)
Answer: The responsibility of the transport layer is to identify the digital communication of the source to the destination application with the use of the port’s numbers. The protocols which work on the transport layer are the TCP and UDP. The transmission control provides reliability by forming the connection, maintaining the flow control, and error recovery.
The responsibility of the transport layer which has to be done is described in the topic. To know them to read the topic to the end.
Transport layer services
The services of the transport layers are various in numbers some of them are discussed in the following section:
Address Mapping
Address mapping means on the network address the transport address is mapped. As the session entity demands the transport service data unit from another session transport layer entity sends the access point address to the transport service for identification. The transport entity will control the NASP (Network Service Access Point). The whole process is called address mapping.
Assigning the network connection
For the transport protocol data units (TPDUs) transfer the transport entity assigned the network connection. The assigned network connection is established by a transport entity. In some transport protocols, recovery after disconnection from the network is possible. When the disconnection happens in some protocols, the TPDUs is reassigned by the transport entity on the different connection.
Data transfers
Data Transfers The data carried by the shipping layer are of two types are the regular transfer of data and the accelerated data transfer. In normal data transfer, the user requests data transfer in an integer number of bytes.
The transfer of the data is transparent such as the boundaries of the data are sustained in the transfer of data and one of the constraints is present on the content and the number of the octet. This type of data transfer can be done in two ways at the same time. The expedited data transfer has different flow control and all the data queues that have the maximum priority can pass for the delivery of data. This type of data flow is an optional or optional service provider and the number of the user data octets is restricted to 16.
Transport connection multiplexing
For the optimal network link uses, the transport entity creates the multiple end-to-end transport connection to the network connection which is referred to as multiplexing. There are many TSDUs that are identified by the receiving transport entity by using the TCEPI (transport connection endpoint identifiers), which are attached with each TSDU by transferring transport entity. For every connection, the TCEP is specific and unique.