Computer network
- 2. A code C is Cyclic. A cyclic code is a block code. Where the circular shifts of each codeword gives another word that belongs to the code. They are error correcting codes that codes that have algebraic properties that are convenient for efficient error detection and correction
- 4. This method is used in the networking This method is used to check the error message. An error detecting code commonly used in digital networks and storage devices to detect accidental changes to raw data.
- 5. An encoder is an electronic device used to convert an analogue signal to a digital signal. It has a number of input lines, but only one of the inputs is activated at a given time and produces an N- bit output code that depends on the activated input
- 6. A decoder is a device which does the opposite of an encoder. It undoes the encoding so that the original information can be obtained. The same method used to encode is usually again in reverse order to decode.
- 8. A hardware implementation means that the job is done using a physical device or electronic circuit as opposed to being done by a computer program. A hardware implementation often takes longer to create and that can make it more expensive.
- 10. A mathemaitcal expression of one or more algebraic terms each of which consists of a constant multiplied by one or more variables raised to a nonnegative integral power(such as a +bx=+cx) Multiplying two polynomial Diving two polynomial
- 11. Multiply two terms together you must multiply the coefficient(numbers) and add the exponents. 1. Step1:Combine like terms 2. Step2:distribute each terms of the first to every term of the second polynomial
- 13. Polynomial long division is an algorithm for dividing a polynomial by another polynomial of the same or lower degree. A genralised version of the familiar arithmetic technique called long division
- 15. A burst error or error burst is a contiguous sequence of symbols, received over a communication channel. Such that the first and last symbols are in error and there exists no contiguous subsequence of m correctly received symbols within the error burst
- 17. A checksum is a count of the number of bits in a transmission unit that is included with the unit so that the receiver can check to see whether the same number of bits arrived. If the counts match, it’s assumed that the complete transmission was received. TCP and UDP communication layers provide a checksum count and verification as one of their service.