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Home/ Questions/Q 3574
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Sneha Singh
Sneha SinghLevel 40
Asked: October 3, 20212021-10-03T22:59:40+05:30 2021-10-03T22:59:40+05:30

What Are Three Responsibilities Of The Transport Layer? (Choose Three.)

What Are Three Responsibilities Of The Transport Layer? (Choose Three.)
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    1. Priya Hamsa Bronze
      2021-12-01T20:01:30+05:30Added an answer on December 1, 2021 at 8:01 pm

      What Are Three Responsibilities Of The Transport Layer? (Choose three.)

      Firstly, it should be able to meet all the requirements and it should provide multiple communication and the multiplexing of all the devices on the same network. Thirdly, it should be able to identify or should be able to handle the data that is transmitted by identifying its applications and then services. Today, let us discuss what actually the transport layer is along with its responsibilities.

      The transport layer is the fourth layer of the OSI model. The transport layer is mainly responsible for its end-to-end connectivity. But what actually, the connected means? The connectivity is nothing but using of the number of sequences along with its acknowledgment.

      The transport layer is also called the heart of the OSI model. Now, let us learn about the tasks that are performed by the transport layer of the OSI model. The transport layer will mainly identify the services. It also works on the session multiplexing segmentation and many more. It will also deal with the error correction and the sequencing and its resembling.

      Now, let us discuss each of these concepts in detail. Firstly we need to identify the transport service, it basically consists of two transport concepts. They are Transmission control protocols and the other one is called the user datagram protocol. Now, let us learn about the basic definition of TCP and the UDP.

      Firstly, the TCP is nothing but a connection-oriented reliable protocol, this TCP works slower than that of the UDP. Whereas UDP stands for user datagram protocol, it is mostly a connection-less and nonreliable protocol. Some of the best examples for UDP are that DNS, DHCP, TFTP, and many more.

      The best examples for the TCP such as SMTP, FTP, and many more. The connection-oriented is nothing but it follows the three-way handshake. Now, let us actually know what is actually, the three-way handshake protocol is. Here, when we want to establish a transmission between the two hosts, we need to create a connection between the two devices.

      Here in the three-way handshake, the requester who is trying to send the information will first syn message to the sender. The syn segment is nothing but a request that is sent by the requester in order to maintain a connection between the requester and the sender. After sending the syn segment, the sender will reply back to the requester along with the syn segment ad acknowledgment. After the requester receives the acknowledgment along with its syn segment sent by the sender. Now, this requester will again send an acknowledgment message to the sender and inform that it has reached its acknowledgment. And then finally, the connection establishment will take place. Due to the three-way handshake, the TCP is known as the connection-oriented protocol.

      As we said earlier, the UDP is a connection-less protocol, this is because we do not need to maintain any connection between the two devices. It can directly start to send the data, and it also does not use any type of acknowledgments in UDP.

       

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