1.

What is the prefix length for group 2?(a) 14(b) 7(c) 25(d) None of the mentionedI had been asked this question in unit test.The doubt is from Designing Subnets topic in section Internet Protocol, Network Addressing and Transport Level Security of Cryptograph & Network Security

Answer»

The CORRECT choice is (c) 25

The explanation: 128 customers, each needs 128 addresses

Suffix LENGTH = 7 (2^7=128)

Prefix length = 32-7= 25.



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