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Explain the transport layer in detail
Transport Layer:Transport layer ensures and controls the end-to-end integrity of data message propagated via the network amid two devices that provides for the reliable, transparent transfer of data between two end points . Transport layer responsibilities comprisesmessage routing, error recovery, segmenting and two types of fundamental services to an upper-layer protocol: connectionless and connectionoriented. Transport layer is the highest layer in OSI hierarchy in terms of communications and may provide data tracking, sequencing of data, connection flow control, application addressing and identification and error checking.
UPD is a layer 4 Transport protocol. It is connection-less due to it does establish a connection thus the 3 step handshake is not needed, it does NOT execute any flow control or ac
PHYSICAL ADDRESSING IN A WAN: The physical addressing in a WAN is same as in LAN in the following way: The data is send in packets equivalent to frames. Every pack
TCP Segment Structure Figure shows the format of the TCP segment. The header consists of a 20 bytes fixed part plus a variable size options fields. The description o
Carrier Sense Multiple Access/Collision Avoidance a) Necessary since wireless LANs cannot implement CSMA/CD b) Collision detection requires increased bandwidth requirements
Describe the term - License-free operation Users would prefer to buy and operate wireless LAN products without having to secure a license for the frequency band used by the LAN
what is dce
5. Suppose that frames are 1250 bytes long including 25 bytes of overhead. Also assume that ACK frame are 25 bytes long. Calculate the efficiency of Stop-and-Wait ARQ in a system t
Different parts of dialogs in Session layer?
What is logical link control? One of two sublayers of the data link layer of OSI reference model, as explained by the IEEE 802 standard. This sublayer is responsible for mainta
Recognize the two items that TCP and UDP share in common? Ans) TCP and UPD are both layer 4 Transport protocols and both use port number to recognize upper level applications.
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