Q#3 on Lab 3.1 - Am I wrong?

[learn25]

Page 159 of CCNA Study Guide Sixth Edition, Exam 640-802

Written Lab 3.1: Written Subnet Practice #1

Write the subnet, broadcast address, and valid host range for question 1 through question 6:

Question #3: 192.168.100.66/27

My own answer based on my manual computation:

Subnet: 192.168.100.64
Host Range: 192.168.100.65 to 192.168.100.94
Broadcast: 192.168.100.95


Answer and explanation to Question #3 found in the book on page 168:

3. 192.168.100.66/27. A /27 is 255.255.255.224. The fourth octet is a block size of 32. Count by 32 until you pass the host address of 66. 0, 32, 64. The host is in the 32 subnet, broadcast address of 63. Valid host range of 33-62.

Did I missed something?? Or there was an error in the solution found in the book. Kindly enlighten me about this.

I just started my preparations using this book.

I already finished Chapter 1 (90% in the review questions. 1st attempt), Chapter 2 (100% in the review questions. 1st attempt), Chapter 3 (95% in the review questions. 1st attempt), and now I'm moving to Chapter 4.

Thank you.

[lammle]

No, you are not wrong. I put that in there so if you were studying and found it, I knew that you were doing everything right!! :D

I need to post an update to this site and I will shortly.

Thank you very much for finding this error. I will have it fixed immediatly.

Please write if you have any questions, thoughts, etc...

Keep up the hard work! You're doing great!!

Cheers!
Todd Lammle

[learn25]

Thank you for the clarification.

I bought your book online at amazon.com because its not yet available here in the Philippines. Very good book indeed. Still a long way to go for me. I don't have any experience configuring Cisco devices at the moment. I just rely on the Packet tracer 4.1 simulator to experiment with router/switch configurations and build virtual topologies/network.

[spookycookie]

Lol... I thought I was going mad with this Q3..!