Subject: TCP/IP

I passed the TCP/IP for NT 4.0 exam. I used the Exam Cram book, the Transcender 3.51 exams, and the WWW.HARDCOREMCSE.COM exams. The Hardcore exams were by far the most valuable and I prefer them to Transcender. The Exam Cram book was very good as they always are. You should visit the Exam Cram website and use the errata sheets to make minor corrections to the book. Using the Transcender 3.51 exams was a mistake; it was actually harmful. Get the Transcenders for 4.0. Although the questions cover the same content, the answers are different. The real exam does not have any answers like "Meets requirements but is not a desirable solution."

I had more questions on net.exe than on arp.exe, nbtstat.exe, and netstat.exe put together.

I know I have read that HOSTS files are case sensitive. They are not. Try experimenting yourself. You really need to practice just a little bit.

1. You should know this, but in case you don't, go to WINNT/system32/drivers/etc

2. You will find HOSTS and LMHOSTS.SAM, which is a template for the LMHOSTS file.

3. You edit LMHOSTS.SAM with Notepad and add entries to it. When you save it, you must save it as "LMHOSTS"

4. That's right, use "LMHOSTS" as the file name INCLUDING THE QUOTES. By doing this, you save it without an extension.

5. Add entries using the #PRE tag. Go to a DOS prompt and enter nbtstat -R to load your additions into your NetBIOS name cache.

6. You can verify what's in your NetBIOS name cache with nbtstat -c which you should already be familiar with.

7. Make invalid entries. Use Find Computer to find a machine with an invalid IP address you added to LMHOSTS.

8. Restore everything to normal. Edit the HOSTS file. Make invalid entries and see what happens.

9. Ping host names with invalid IP addresses in the HOSTS file.

10. Restore everything to normal.