This is my first post on a blog. I am hoping that keeping this blog will help me with the Microsoft Certified Desktop Support Technician program. My wife and I are currently reading and studying from the same book. Supporting users and Troubleshooting a Microsoft Windows XP Operating system is the name. I am working on Chapter 10 and she is on Chapter 8. In the past I have studied Visual Basic with an eye toward that certification. For 15 years I have been trying to make money using computers instead of spending money on them. The plan is this time with the help of my wife to at least achieve this level of certification.
I may go back and post some notes from the chapters I have already covered but for now I am going to start with Chapter 10 “Supporting Network Connectivity.” If this is at least partly successful, I would like to organize these notes and post them on our website www.danaus.com. Mary is also going to start her own blog. Part of it may be in Filipino and part in English. I don’t know how she will organize it but I am going to encourage her.
Chapter 10: Network Connectivity
Understanding TCP/IP
I have studied this material before and thought I had a good understanding of it. Now I am not so sure.
Setting up a computer (host) on a network
IP address required
Subnet mask required
Default gateway required
Domain Name System (DNS) optional
Windows Internet Naming Service (WINS) optional
IP address
xxx.xxx.xxx.xxx each xxx can be a number between 1 and 255
Class A networks 1-126 subnet mask 255.0.0.0
Class B networks 128-191 subnet mask 255.255.0.0
Class C networks 192-223 subnet mask 255.255.255.0
Class D networks 224-239 not used for host
Class E networks 240-255 not used for host
Private IP addresses
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255 Most NAT gateway routers
TCP IP HOST file instead of DNS server
Lmhosts File instead of WINS Server
WINS server NETBOIS name server not used in windows 2000 or windows xp except for backward compatiblity.
