640-802 Cisco Certified Network Associate
Note 1: 640-802 Exhibit and all related diagrams are not shown in demo questions.
Note 2: 640-802 Answers are not shown in demo questions.
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Note 2: 640-802 Answers are not shown in demo questions.
Exhibits and Answers are only provided in the Full Version.
Demo Question 3.
You have a class B network with a 255.255.255.0 mask. Which of the statements below are true of this network? (Select all valid answers)
A. There are 254 usable subnets.
B. There are 256 usable hosts per subnet.
C. There are 50 usable subnets.
D. There are 254 usable hosts per subnet.
E. There are 24 usable hosts per subnet.
F. There is one usable network.
Display Answer
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Answer: A, D
Explanation: The default subnet mask for Class B is 255.255.0.0. Thus an extra 8 bits have been used
for the network portion, leaving 8 for hosts. The 2n - 2 formula (28 - 2 in this case for
both the network and IP hosts) gives us 254 networks and 254 hosts per network.
Incorrect
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