640-802 Cisco Certified Network Associate
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Note 2: 640-802 Answers are not shown in demo questions.
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Demo Question 2.
How many usable IP addresses can you get from a conventional Class C address?
A. 128
B. 192
C. 254
D. 256
E. 510
Display Answer
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Answer: C
Explanation: Class Caddresses range from 192.0.0.0 through 223.225.225.225 and default subnet
maskof 255.255.255.0. In Class C addresses, the first 24 bits are used as for the network
IDwhile only the last 8 bits is used for the host ID. Using the 2n-2 formula, we can
calculate that Class C addresses can support a maximum of 254 (28-2) hosts.
Incorrect
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