Study Lab

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Don't miss the Study Lab materials found on the CD accompanying this book. Each Study Lab is tailored to the individual chapters in this book, meaning that you'll quickly be able to determine which topics you understand well enough to pass the exam and which topics need more study time. The Study Labs are presented in printable PDF format so that you can take them with you to study at work, on the road, or even in your car just before test time!

The Absolute Minimum

  • A network is a group of computers, peripherals, and software that are connected to each other and can be used together.

  • Windows NT 4.0/2000/XP and Windows 9x/Me all contain client software, network protocols, file and print sharing, and services that can be used to create network clients or share resources with other computers.

  • Dial-up, ISDN, and DSL all use telephone lines, but ISDN and DSL provide two-way, all-digital Internet connections.

  • Cable Internet typically uses high-performance digital cable TV networks, although older, all-coaxial networks support one-way service.

  • DirecWAY and Starband provide two-way satellite Internet service.

  • Fixed wireless is used in areas beyond the reach of DSL or cable TV, and is often provided by vendors of wireless cable TV.

  • TCP/IP is a suite of network protocols used for both Internet access and LAN connections.

  • Domain names typically divide into three parts , including the top-level domain (.com, .org), the site name (Microsoft), and the server type (www, ftp, or others).

  • The most common network topology is the star topology, used by 10BaseT and faster, UTP-based Ethernet and Wireless Ethernet in infrastructure mode.

  • Wireless Ethernet networks that use 802.11a-, 802.11b-, or 802.11g- compatible hardware are often referred to as Wi-Fi networks.

  • UTP cables in Category 5 and higher are required for Fast Ethernet (100BaseT) and faster networks.

  • Network cards typically require an IRQ and an I/O port address range, and some also need media type and full-duplex settings to complete the configuration process.

  • TCP/IP configuration is easiest when a server-assigned IP address is used.

  • You can share printers, folders, and other types of resources.

  • Shared resources can be referred to with mapped drive letters , UNC names, or FQDN names.

  • You can improve system security by enabling the Windows XP Firewall and by using the Security settings in the Internet Explorer browser.


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Absolute Beginners Guide to A+ Certification. Covers the Hardware and Operating Systems Exam
Absolute Beginners Guide to A+ Certification. Covers the Hardware and Operating Systems Exam
ISBN: N/A
EAN: N/A
Year: 2004
Pages: 310

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