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The Data Link Layer is the second layer of the OSI (Open Systems Interconnection) model. Its primary function is to provide error-free transfer of data frames between two devices over…

The Physical Layer is the first layer in the OSI (Open Systems Interconnection) model and plays a crucial role in the transmission of raw data over a physical medium. It…

A checksum is a small-sized piece of data derived from a larger data set, used primarily for error detection during data transmission or storage. It is essentially a value that…

A Cyclic Redundancy Check (CRC) is an error-detecting code widely used in digital networks and storage devices to detect accidental changes to raw data. It involves appending a short, fixed-length…

If a data block has 8 bits and a Hamming code with 4 parity bits is used, how many bits will the transmitted data block consist of? A) 8 bits…

Which of the following methods is used for error detection by ensuring the total number of 1s is even or odd? A) Parity Bit B) CRC C) Hamming Code D)…

Error Detection and Correction Error detection and correction are essential in computer networks and communication systems to ensure the accuracy and integrity of transmitted data. These methods help to identify…

Error detection and correction are crucial in communication systems to ensure that data is transmitted accurately and reliably across a network. In real-world applications, data can become corrupted during transmission…

1. Which of the following is a type of guided transmission media? A) MicrowaveB) Radio wavesC) Coaxial cableD) Infrared raysAnswer: C) Coaxial cable 2. Which transmission medium uses light signals…

Transmission media refers to the physical path or medium through which data is transmitted from one location to another in a communication system. It can be either guided or unguided.…