comptia network 2009 in depth by tamara dean

... file Print file using the default printer. lpr actually places file in the printer queue. The file is actually printed by lpd (line printer dae- mon), the UNIX printer service. grep "string" ... Linux from CD or DVD As with other network operating systems, a successful Fedora Core installation begins with planning Planning a Linux Installation In the preceding chapter, you learned about ... following example of installing Linux uses a popular, free version of Linux called Fedora Core Installing Linux NET+ 3.1 This section describes the prerequisites for and the process of installing...

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... of the Sutkin Manufacturing Company’s eDirectory tree is called “Sutkin,” the OUs might be called “Maintenance,” “Inventory,” “Packing,” “Shipping,” “Information Services,” “Accounting,” and so ... Benefits of using NSS include the following: ◆ A 64-bit interface, which results in fast data access ◆ Files or directories as large as 8 Terabytes (TB) ◆ Up to a trillion files in a single directory ... to maintain independent operation (in case of a failure at headquarters) while belonging to the same NetWare eDirectory ◆ Nterprise Linux Services, a group of network services that allow Linux-based

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... mask indicates where network information is located in an IP address. The “1” bits in a subnet mask indicate that corresponding bits in an IP address contain network information. The “0” bits in ... multiple networks must maintain a routing table to determine where to forward information When a router is used as a gateway, it must maintain routing tables as well The Internet contains a vast ... the host informa- tion portion of the Class C address (to indicate network information) are underlined. 488 Chapter 11 IN- DEPTH TCP/IP NETWORKING NET+ 2.7 Class A, Class B, and Class C networks

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... determining a problem’s chronological scope was experienced by a wireless networking engineer working on a small metropolitan area network His spread-spectrum RF network links, which... in CompTIA? ??s ... computers on the same network. 518 Chapter 11 IN- DEPTH TCP/IP NETWORKING ICS host—On a network using the Microsoft Internet Connection Sharing service, the com- puter whose Internet connection ... 1 results in a 1. A bit with a value of 0 plus any other bit results in a 0. CIDR (Classless Inter-domain Routing)—An IP addressing and subnetting method in which network and host information

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... implementation in which more than one component is installed and ready to use for storing, processing, or transporting data Redundancy is intended to eliminate single points of failure To maintain high ... wire, incorrect pairing, or a termination point. In other words, changes in impedance can indicate where current is stopped or inhibited. Although you could use separate instruments for measuring ... work in much the same way Most even use very similar graphical interfaces NOTE To take advantage of network monitoring and analyzing tools, the network adapter installed in the machine running

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... policy is to refrain from running any program whose origins you cannot verify. Fault Tolerance Besides guarding against viruses, another key factor in maintaining the availability and integrity of ... ◆ Line conditioning—A UPS should also offer surge suppression to protect against surges and line conditioning, or filtering, to guard against line noise. Line condition- ers and UPS units include ... transmitting and receiving information Now imagine that... mirroring is that the servers involved can stand side by side or be positioned in different locations—perhaps in two different buildings

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... people are included in the following list: ◆ Intruders or attackers using social engineering or snooping to obtain user passwords ◆ An administrator incorrectly creating or configuring user IDs, ... electromagnetic interference?... thereby disabling it from carrying legitimate traffic You will learn about softwarerelated risks in the following section The following risks are inherent in network ... providing information while browsing the Web Some sites will capture that information to use when attempting to break into systems Bear in mind that hackers are creative and typically revel in

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... transmitted purchase information, including credit card numbers and customer names, to network APs (access points) in clear text By chance, a person in the parking lot who was running a protocol ... be viewed by its intended recipient (or at its intended destination). ◆ All of the data received at the intended destination was truly issued by the stated sender and not forged by an intruder. ... overlooking security flaws in operating system or application configuration; improperly documenting or communicating security... an intermediary between the external and internal networks, screening

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... resolution. In that case, the initiation phase would include deter- mining whether the project is feasible, assessing needs, and determining which staff will be involved. Identifying goals and answering ... anything in common, and how to address needs that do not fall into the majority. Chapter 15 671 PROJECT MANAGEMENT [...]... become involved in maintaining or troubleshooting the network In ... system includes... and from other sources, including reputable Internet bulletin boards, reputable magazines, and other networking professionals Evaluate the costs involved in upgrading Also

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... larger network? ??s hardware, software, connectivity, unique configurations, and load. ◆ Network management involves assessing, monitoring, and maintaining network devices and connections. ◆ Baselining ... learning from prior mistakes Contingency planning b Testing and evaluation c Communication d Setting timelines a 5 _ involves identifying and tracking the hardware and software on your network ... following network protocols in terms of routing, addressing schemes, interoperability and naming conventions:... goal within given bounds 703 This page intentionally left blank Appendix A Network+

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... Nothing; in Windows XP the DHCP option is selected by default and the client will obtain IP addressing information upon connecting to the network 61 You are a support technician installing ... NETWORKING FORMS STANDARD NETWORKING FORMS Appendix D 745 746 Appendix D STANDARD NETWORKING FORMS STANDARD NETWORKING FORMS Appendix D 747 748 Appendix D STANDARD NETWORKING FORMS STANDARD NETWORKING ... installing a new NIC on a Windows XP workstation After physically installing the NIC, then installing the appropriate device driver for the... planning and maintaining a network Recognize that you

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... switch. [...]... within another domain in a Windows Server 2003 domain tree CIDR (Classless Inter-domain Routing)—An IP addressing and subnetting method in which network and host information is ... interpreting... connector—A connector containing nine pins that is used on STP-based Token Ring networks DC (domain component) In LDAP naming conventions, the name of any one of the domains to ... create continuous waves, resulting in an inexact transmis- sion. ANDing—A logical process of combining bits. In ANDing, a bit with a value of 1 plus another bit with a value of 1 results in a 1.

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... to the network administrator root domain In Windows Server 2003 networking, the single domain from which child domains branch out in a domain tree root server—A DNS server maintained by ICANN ... and internal networks, screening all incoming and outgoing traffic and providing one address to the outside world, instead of revealing the addresses of internal LAN devices PSE (power sourcing ... connection cables Point-to-Point Protocol—See PPP Point-to-Point Protocol over Ethernet—See PPPoE Point-to-Point Tunneling Protocol—See PPTP point-to-point—A data transmission that involves one transmitter

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... standards in the networking industry, including those that oversee wiring codes, net- work access methods, and Internet addressing. It also discusses, in depth, the OSI Model, which is the industry ... accessing networks from remote locations, including dial-up network- ing and VPNs (virtual private networks). Chapter 8, Network Operating Systems and Windows Server 2003-Based Networking,” covers ... remain one of the fastest growing indus- tries in the U.S. economy, despite recent job losses. In any industry, the workforce is important to continually drive business. Having skilled workers in...

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... protocols, topologies, networking hardware, and network troubleshooting. network interface card—See NIC. network operating system—See NOS. network services—The functions provided by a network. NIC (network interface ... easily by a single network administrator and the network operating system’s internal functions. For instance, suppose a user called to report a problem logging on to the network. The administrator ... learn by doing. Many colleges offer courses or continuing education on networking topics. You may also want to enroll at a computer training center. These train- ing centers can be found in every...

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... You will use this information when installing network operating systems, configuring servers and client workstations, installing NICs, troubleshooting network problems, and purchasing net- work equipment. IEEE ... used in token-passing networks like Advisory Group FDDI 802.9 Integrated Voice/ Integration of voice and data traffic over a single network Data Networks medium 802.10 Network Security Network ... equipment. IEEE Networking Specifications In addition to frame types and addressing, IEEE networking specifications apply to connec- tivity, networking media, error checking algorithms, encryption, emerging...

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... affecting productivity—If you save money by reusing existing slower lines, are you incurring costs by reducing productivity? In other words, are you making staff wait longer to save and print reports ... new infrastructure versus reusing existing infrastructure—Can you use existing wiring? In some cases, for example, installing all new Category 7 UTP wiring may not pay off if you can use existing ... affect the cost of installing and maintaining the network, the ease of adding new segments or nodes to the network, and the technical exper- tise required to maintain the network. The connectors...

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... explains how to install this type of cabling from the server to the desktop. Installing Cable So far, you have read about the variety of cables used in networking and the limitations inher- ent in ... divided into a few cubicles. In general, stations must remain within 300 feet of an access point to maintain optimal transmission speeds. In addition to connecting multiple nodes within a LAN, ... cables were improperly installed. This section outlines the most common method of installing UTP cable and points out cabling mistakes that can lead to network instability. In the previous section,...

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... transmission occurs on a point-to-point basis, multi- casting is a point-to-multipoint method. Multicasting can be used for teleconferencing or videoconferencing over the Internet, for example. Routers ... nearby wire pairs infringing on another pair’s signal. demarcation point (demarc)—The point of division between a telecommunications service carrier’s network and a building’s internal network. demultiplexer ... rule—A guideline for 10-Mbps Ethernet networks stating that between two communi- cating nodes, the network cannot contain more than five network segments connected by four repeating devices,...

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... the TCP/IP host name. TIP WINS (Windows Internet Naming Service) WINS (Windows Internet Naming Service) provides a means of resolving NetBIOS names to IP addresses. WINS is used exclusively with ... running correctly. Next, you might try pinging your neighbor’s machine. If you receive a positive response, you know that your network connection is working. You should then try pinging a machine ... command may vary depending on the operating system. But a ping command always begins with the word “ping” followed by a hyphen (-) and a switch, fol- lowed by a variable pertaining to that switch....

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