CCNP BSCI Exam Cram 2 (Exam Cram 642-801)

The following table displays the three main IP address classes, along with their default masks in binary and decimal formats, respectively.

Class

Default Mask in Binary

Default Mask in Decimal

A

11111111.00000000.00000000.00000000

255.0.0.0

B

11111111.11111111.00000000.00000000

255.255.0.0

C

11111111.11111111.11111111.00000000

255.255.255.0

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