This article will make you understand the differences between binary, decimal and hexadecimal values and will tell you how to convert one format values into the other’s values according to the CCNA 640-802 Cisco Certified Network Associate’ course detail 2011. We have covered in this article that how to convert hexadecimal to binary and to decimal values according to the CCNA 640-802 Cisco Certified Network Associate’ course detail.
This post actually solved my problem, I was getting mad, I never could understand the method of decimal conversion to binary and to hexadecimal.
The digits used are limited to either a 1 (one) or a 0 (zero) and each digit is called 1 bit (short for binary digit). I want to explain it more deeply, so binary value 01010110, it shows that the 64 16 4 2 bits are on in this value and if we shall add them, we shall find this 64 + 16 + 4 + 2 = 86, which is equal to the binary value of 01010110.


You must have to memorize that each hex character is a nibble and two hex characters together make a byte. One more example, nibble binary value of 0110, 4 and 2 bits are turned on, so we shall find the decimal value of 6. Another way of practice, find the binary value of this: 128, 16, 4 and 2 bits are turned on, and we can find the binary value of 10010110 and decimal value of 150. To discover the binary value, we have to set the hex characters into two nibbles and then set them together into a byte. The binary numbers are put in a value speck: start from right and move to left with every speck have the double value of the previous speck.


While the decimal value would be 155, because the binary number is 10011011, that converts to 128 + 16 + 8 + 2 + 1 = 155.



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