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Describe shor note on Physical layer?
A hypertext link is a special tag that links single page to another page or resource. If you click the link, the browser goes to the link's destination.
What is Protocol Data Unit? The data unit in the LLC level is known as the protocol data unit (PDU). The PDU having of four fields a destination service access point (DSAP), a
TCP (Transmission Control Protocol) and UDP are used by TCP/IP. SPX (Sequenced Packet Exchange) is used with IPX. NBP (Name Binding Protocol) is used with Appletalk.
Q. What is Two Types of Errors? Single-Bit Errors: Merely one bit in the data unit has changed Burst Errors of length 'n': 2 or more bits in the data unit have changed (
What is Synchronous TDM? In STDM, the multiplexer allocates exactly the same time slot to every device at all times, whether or not a device has anything to transmit.
What is the difference among TFTP and FTP application layer protocols? The Trivial File Transfer Protocol (TFTP) permits a local host to get files from a remote host but does n
..internetworking devices
The Physical layer deals with the definite physical medium and the method of transporting 1s and 0s.
SONET Frame Can be viewed as a matrix of nine rows of 90 octets every for a total of 810 octets. A few used for control they aren't positioned at the beginning or end of the
Q. Show the Congestion control in TCP? Congestion control in TCP TCP assumes that the cause of lost segment is due to congestion in the network Retransmission of
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