How many valid host addresses are created when 4 host bits are borrowed from the 10.20.20.0/24 network?
- 2
- 4
- 14
- 16
- 126
- 128
- 254
- 256
Explanation: The number of valid host addresses created by borrowing 4 bits is 24–2, or 14. It is necessary to subtract 2 because the network address and the broadcast address for each subnet cannot be used as host addresses.
Exam with this question: CCNA 1 ITNv6 Chapter 8: Check Your Understanding
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