XP/2003 MACHINES ON THE NETWORK.YOU SHOULD MINIMIZE THE NUMBER OF...

2000/XP/2003 machines on the network.You should minimize the number of WINS servers on your network.WINSreplication uses a lot of network bandwidth.

Planning Network Traffic Management

Network Monitor can be used to examine data transmissions sent over thenetwork. It provides a means for tracking down network issues.System Monitor is a local or remote performance utility that you can use toidentify bottlenecks and issue alerts when undesirable situations occur.Bandwidth requirements vary, but by using the tools provided, you can allocateresources appropriately and optimize your system’s performance by reducing andperfecting data delivery.

Exam Objectives

Frequently Asked Questions

The following Frequently Asked Questions, answered by the authors of this book, aredesigned to both measure your understanding of the Exam Objectives presented inthis chapter, and to assist you with real-life implementation of these concepts. Youwill also gain access to thousands of other FAQs at ITFAQnet.com.

Q:

Will I need to learn how to subnet networks as a LAN administrator?

A:

Yes, the ability to design and implement and support networks using TCP/IP dependson your ability to understand IP addressing practices. It is also important to understandsubnetting for troubleshooting problems and expanding your network.

Q:

Is it necessary to memorize all the options for Netsh to manage my network effec-tively?

A:

You should be familiar with the various functions provided by Netsh and understand itsimportance in configuring IPv6 and other networking components.You may finduseful functionality that can simplify repetitive tasks, since netsh is a command-line tooland provides you with a means to automate tasks.You can even use it to back up con-figurations for services such as DHCP and DNS to simplify building similar machineson your network.

Q:

Is everything I need to know about TCP/IP to do my job in this chapter?

A:

No, volumes of data exist on TCP/IP, including many valuable Internet resources suchas IPv6.org and IETF.org. Every day, new information about the development ofTCP/IP protocols is available. In addition, there are books dedicated solely to TCP/IPand still others that talk about security on networks that use TCP/IP.

Q:

Do I need to know all the port numbers for the different protocols to manage my net-work?

A:

You should be familiar with the common port numbers, such as those for FTP, HTTP,and SMTP, but it is not necessary to memorize every single one. Understanding how todetermine which port does what can help you identify which services are in use onmachine, as well as provide better security for your network.You can learn to use andidentify different ports to do other tasks, such as testing SMTP on port 25 usingtelnet.exe (the Telnet port defaults to 22).

Q:

Can I use IPv6 exclusively on my network?

A:

Yes, however, due to the limited application support, it would be very difficult at thispoint to eliminate IPv4 and still function efficiently. For instance, there is no IPv6implementation of DHCPv6, so it is difficult to manage configuration settings for net-works that have many clients. Other common protocols such as SMTP, POP, andNNTP do not currently support IPv6. In addition, the majority of Internet resourcesare using IPv4, and you would require some implementation of IPv4 on your networkto access those resources.

Q:

Can I use CIDR notation on any router?

A:

No, only certain versions of the routing protocols RIPv2 and OSPF support CIDRnotation. Routers using RIPv1 do not support CIDR notation, and thus require thefull routing information to be provided.This could present issues if you are usingCIDR notation for routers that will interface with RIPv1 routers and router discovery.Most hardware routers can use CIDR notation to define routes. CIDR notation canhelp reduce the number of route entries that must be added to the routing table.

Q:

Do I need a public class IP address block for my network if I have 200 hosts that needInternet access?

A:

No, it would be very costly and difficult to obtain an entire block of class C addresses.You should implement a firewall.Then you will be provided with either a single IPaddress or a small subnet of six or fewer public addresses that will provide the externalinterface to the world. Intead, y\ou should use a private IP addressing scheme inter-nally to allow for outbound traffic to the Internet via NAT. Public addresses would benecessary for Web servers,VPN over the Internet, and other interfaces that need to beaccessible over the Internet. E-mail servers must have a public IP address to allowdelivery of Internet messages.You may be hosting a DNS server that provides hostname resolution for your public Web servers.The DNS server would require a publicinterface to allow other clients to perform lookups, to update and receive updates for azone, and so on.

Self Test

A Quick Answer Key follows the Self Test questions. For complete questions, answers,and explanations to the Self Test questions in this chapter as well as the otherchapters in this book, see the Self Test Appendix.

Understanding Windows 2003 Server Network Protocols