barcodelib.barcode.winforms.dll free download Practice: Designing a DNS Namespace in Visual Basic .NET

Encoding Data Matrix ECC200 in Visual Basic .NET Practice: Designing a DNS Namespace

Practice: Designing a DNS Namespace
Data Matrix 2d Barcode Printer In Visual Basic .NET
Using Barcode printer for .NET Control to generate, create ECC200 image in VS .NET applications.
www.OnBarcode.com
DataMatrix Decoder In Visual Basic .NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Fabrikam, Inc., is constructing a new data network and has registered the Internet domain name fabrikam.com. You are to design a DNS namespace for the network and, in the diagram below, write the fully qualified domain name for each computer in the space provided. Base your design on the following information:
Generate Barcode In VB.NET
Using Barcode generation for VS .NET Control to generate, create bar code image in .NET applications.
www.OnBarcode.com
Barcode Decoder In Visual Basic .NET
Using Barcode decoder for Visual Studio .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Fabrikam.com is the only second-level domain name you can use. The internal network should be in a different domain from the external network. The company consists of three internal divisions: Sales, Human Resources, and Production. Each division is to be represented by a separate subdomain in the namespace.
Make DataMatrix In Visual C#.NET
Using Barcode generation for .NET framework Control to generate, create Data Matrix 2d barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Create DataMatrix In Visual Studio .NET
Using Barcode creation for ASP.NET Control to generate, create Data Matrix 2d barcode image in ASP.NET applications.
www.OnBarcode.com
Lesson 2
Make Data Matrix ECC200 In VS .NET
Using Barcode generator for .NET Control to generate, create DataMatrix image in Visual Studio .NET applications.
www.OnBarcode.com
Generating Barcode In VB.NET
Using Barcode generator for .NET framework Control to generate, create bar code image in VS .NET applications.
www.OnBarcode.com
Designing a DNS Namespace
QR Code JIS X 0510 Generator In VB.NET
Using Barcode drawer for Visual Studio .NET Control to generate, create Denso QR Bar Code image in .NET applications.
www.OnBarcode.com
Code 128 Code Set A Creation In VB.NET
Using Barcode generator for .NET framework Control to generate, create Code 128B image in .NET framework applications.
www.OnBarcode.com
4-25
Draw PDF 417 In VB.NET
Using Barcode printer for Visual Studio .NET Control to generate, create PDF417 image in .NET framework applications.
www.OnBarcode.com
USPS OneCode Solution Barcode Encoder In VB.NET
Using Barcode maker for VS .NET Control to generate, create USPS Intelligent Mail image in Visual Studio .NET applications.
www.OnBarcode.com
Each division has departmental servers performing various roles and as many as 200 workstations, only some of which are shown in the diagram. Your host names should identify the function of each computer. Three servers on an external perimeter network host the company s Internet services: Web, FTP, and e-mail. These servers must be in the domain fabrikam.com.
UCC-128 Creation In Visual C#
Using Barcode creation for Visual Studio .NET Control to generate, create UCC - 12 image in VS .NET applications.
www.OnBarcode.com
PDF 417 Generation In .NET
Using Barcode printer for ASP.NET Control to generate, create PDF417 image in ASP.NET applications.
www.OnBarcode.com
Human Resources Sales Production
Making Data Matrix 2d Barcode In None
Using Barcode creator for Office Excel Control to generate, create DataMatrix image in Excel applications.
www.OnBarcode.com
Recognizing Data Matrix 2d Barcode In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
File Server
EAN13 Generation In .NET Framework
Using Barcode generator for .NET framework Control to generate, create EAN 13 image in VS .NET applications.
www.OnBarcode.com
Painting GTIN - 13 In Objective-C
Using Barcode printer for iPhone Control to generate, create EAN / UCC - 13 image in iPhone applications.
www.OnBarcode.com
File Server
GS1 - 12 Scanner In .NET Framework
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
PDF 417 Creator In None
Using Barcode creation for Font Control to generate, create PDF 417 image in Font applications.
www.OnBarcode.com
File Server #1
Bookkeeping Server
Database Server
File Server #2
Intranet Web Server
Workstation #1
File Server #3
Workstation #8
Workstation #5
Workstation #2
Workstation #19
Workstation #20
Workstation #197
Web Server
FTP Server
E-mail Server #1
Perimeter Network
4-26
4
Planning a Name Resolution Strategy
Lesson Review
The following questions are intended to reinforce key information presented in this lesson. If you are unable to answer a question, review the lesson materials and try the question again. You can find answers to the questions in the Questions and Answers section at the end of this chapter. 1. Which of the following is the best reason to create subdomains in a DNS namespace a. To speed up the name resolution process b. To delegate administrative authority over parts of the namespace c. To create identical host names in different domains d. To duplicate an existing Internet namespace 2. Why should you never use the same domain name for your internal and external namespaces
3. Which of the following domain naming examples, for an organization with the registered domain adatum.com, conforms to the practices recommended by Microsoft a. An external domain called ext-adatum.com and an internal domain called int-adatum.com b. An external domain called ext.adatum.com and an internal domain called adatum.com c. An external domain called ext.adatum.com and an internal domain called int.adatum.com d. An external domain called adatum.com and an internal domain called int.adatum.com
Lesson Summary
When creating a DNS namespace, devise naming rules for domains and hosts and stick to them. If you require multiple domains for your DNS infrastructure, you can either regis ter several second-level domain names or register one domain name and create additional domain levels beneath it.
Lesson 2
Designing a DNS Namespace
4-27
Creating subdomains enables you to delegate authority over parts of the namespace and to balance the DNS traffic load among multiple servers. When combining internal and external domains, the recommended practice is to use a registered domain name for the external network and to create a subdomain beneath it for the internal network. Creating an internal root speeds up the name resolution process by keeping the process wholly inside the enterprise.
4-28
4
Planning a Name Resolution Strategy
Lesson 3: Implementing a DNS Name Resolution Strategy
Once you have determined your network s name resolution requirements and designed your DNS namespace, it is time to actually implement the name resolution services by installing and configuring servers. Towards this end, you must first decide how many servers you need and where you are going to locate them, and then determine how you are going to configure the servers.
After this lesson, you will be able to
Explain the functions of caching-only DNS servers and forwarders List the types of zones you can create on a Windows Server 2003 DNS server Understand the differences between file-based zones and Active Directory-integrated
zones Estimated lesson time: 30 minutes
How Many DNS Servers
A Windows Server 2003 DNS server running on a computer with a 700 MHz Pentium III processor can handle up to 10,000 name resolution queries per second, so in most instances, private networks use multiple DNS servers for reasons other than a heavy client load. Some of the other reasons for deploying multiple DNS servers on your network are as follows:
Providing redundancy For a network that relies heavily on DNS name resolu tion, having a single DNS server means having a single point of failure. You should plan to deploy a sufficient number of DNS servers so that at least two copies of every zone are always online. Improving performance For a DNS client, the combination of a nearby DNS server and a reduced traffic load on that server means improved name resolution performance. Balancing traffic load Even when a single server is capable of handling the name resolution requests for your entire network, the network might not be up to the task. Having all the network s DNS traffic converge on a single subnet can overload the LAN and slow down the name resolution process, as well as interfer ing with the other computers sharing the network. Deploying multiple servers on different subnets enables you to balance the DNS traffic between them and avoid creating bottlenecks. Reducing WAN traffic When your network consists of LANs at multiple sites, connected by multiple wide area network (WAN) links, it is usually best to have a DNS server at each site. WAN links are relatively slow compared to LAN connections,
Copyright © OnBarcode.com . All rights reserved.