Network Systems

CCNA1 Module 5: Number Systems

This is part of the CCNA1 Introduction to Networks course. This page will be updated with texts in the future… for now, please refer to my lecture on my YouTube channel.


TBA

Summary of the Module 5

  • Binary is a base two numbering system that consists of the numbers 0 and 1, called bits.
  • Decimal is a base ten numbering system that consists of the numbers 0 through 9.
  • Binary is what hosts, servers, and networking equipment uses to identify each other.
  • Hexadecimal is a base sixteen numbering system that consists of the numbers 0 through 9 and the letters A to F.
  • Hexadecimal is used to represent IPv6 addresses and MAC addresses.
  • IPv6 addresses are 128 bits long, and every 4 bits is represented by a hexadecimal digit for a total of 32 hexadecimal digits.
  • To convert hexadecimal to decimal, you must first convert the hexadecimal to binary, then convert the binary to decimal.
  • To convert decimal to hexadecimal, you must first convert the decimal to binary and then the binary to hexadecimal.

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