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What is Error Detection? What are its methods?
Data can be corrupted during transmission. For reliable communication errors must be deducted and corrected. Error Detection uses the method of redundancy, which means adding extra bits for detecting errors at the destination. The common Error Detection process are
a. Vertical Redundancy Check (VRC)
b. Longitudinal Redundancy Check (VRC)
c. Cyclic Redundancy Check (VRC)
d. Checksum
i) Identify at least two items at every site that needs upgrading [2 Marks] ii) What type of WAN connection (link) might you use to connect the three sites to each other?
Suppose that frames are 1250 bytes long including 25 bytes of overhead. Also assume that ACK frames are 25 bytes long. Calculate the efficiency of stop-and-wait ARQ (a) Transmits a
In this project, you will implement a Transport Layer protocol to transmit data with Reliable Data Transfer from a client to a server in the presence of channel errors and loss. Th
FDDI has four specifications: 1. Media Access Control it defines how the medium is accessed 2. Physical Layer Protocol it defines data encoding/decoding procedures 3. Phy
Q. Show the Error Correction by Hamming Code? Hamming Code is able to be applied to data units of any length and uses the relationship between data and redundancy bits For i
Consider an RTP session consisting of five users, all of which are sending and receiving RTP packets into the same multicast address. Each user sends video at 200kbps. a) What
different components of computer network security
Draw a work breakdown structure (WBS) diagram for the project, to show all the planned tasks. This WBS should contain at least two levels. b) Explain the main differences between
Can you describe TCP header in detail?
what is compurter network and types, topology, communication media
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