By James Stanger
--Become a professional net webmaster, one of many most well-liked new certifications round. --Based upon reliable CIW courseware, this Sybex examine advisor is your key to passing the CIW Sever Admministrator examination, 1D0-450. --The significant other CD contains pre-as
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For many companies, e-mail servers are the ultimate mission-critical server. Finally, we discussed the IT concepts of system maintenance, including fault tolerance, server optimization, and backup. Exam Essentials Be able to identify backbone services, which provide the ability to share, find, and connect to resources. Backbone naming services such as Dynamic DNS, WINS, and Samba provide the ability to find resources by using a host name or a NetBIOS name that is friendlier and easier to remember than an IP address.
Such a slowdown is called a bottleneck. A server connection is only as fast as its slowest component. com System Architecture and Hardware 27 In the following sections, you will learn how system architecture affects your ability to provide internetworking services. You will also learn how hardware issues affect your ability to connect to the Internet. Bus Speed A computer’s motherboard coordinates signals sent from a computer’s devices (for example, the hard drive, the network interface card, and so forth).
Com 32 Chapter 2 Internet System Installation and Configuration Issues at faster speeds and take only one machine cycle to process instructions (as opposed to several machine cycles in a CISC chip). One of the more popular RISC chips on the market is the Sun SPARC chip. You will learn more about Sun systems shortly. Additionally, processors differ in the amount of cache memory. A Celeron processor not only has a slower bus speed than a Pentium III processor, but less cache memory. On the other hand, a Pentium III Xeon processor as opposed to a standard Pentium III processor has as much as 2MB of cache memory, so it is an excellent choice for an Internet server that is being pounded with multiple requests for data.