This appendix begins with ten mask conversion problems, followed by the matching answers and explanations. After that, it lists ten mask analysis problems, followed by the matching answers.
The problems in this appendix require you to convert dotted-decimal subnet masks to prefix format, and vice versa. To do so, feel free to use the processes described in Chapter 13 of Cisco Data Center Networking (DCICN) #200-150 Official Cert Guide.
Many people use the information in Table F-1 when converting masks. The table lists the nine dotted-decimal notation (DDN) mask values, the binary equivalents, and the number of binary 1s in the binary equivalents.