Regardless of whether you have a Class A, Class B, or Class C address, the /30 mask will provide you with only two hosts, ever. As suggested by Cisco, this mask is suited almost exclusively for use on point-to-point links.
- Chapter 4: Easy Subnetting
- from CCENT: Cisco Certified Entry Networking Technician Study Guide: ICND1 Exam 100-101
- Publisher: Sybex
- Released: August 2013
Implement into your tables/chart before start the exam
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