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CCENT/CCNA ICND1 640-822 Official Cert Guide by Wendell Odom

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Chapter 14. Converting Subnet Masks

Subnet masks serve many important roles in the world of IPv4 addressing and subnetting. However, this chapter ignores those roles. Instead, this chapter focuses on the numbers used as subnet masks, focusing on the three different formats for subnet masks:

Binary

Dotted-decimal notation (DDN)

Prefix (also called CIDR)

This chapter focuses on the numbers, and converting between three different ...

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