comptia network 2009 in depth by tamara dean pdf

... file Print fileusing the default printer.lpractually places filein the printer queue The file is actually printed by lpd (line printer mon), the UNIX printer service. dae-grep "string" ... Windows already installed, so it is usually necessary to install Linuxfrom CD or DVD As with other network operating systems, a successful Fedora Core instal-lation begins with planning Planning ... After gathering the information described in this section, you’re ready to begin Installing and Configuring Fedora Core Although you can install Fedora Core over the network, this installation

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... decisions youmust make when installing and initially configuring your NetWare 6.5 server instal-The Installation Process After thoroughly planning your installation and obtaining the NetWare 6.5 software ... limitations.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 ... copied to) multiple servers infor-on a network This means that if the infor-one server cinfor-ontaining eDirectory data fails, clients canstill log on to the network and obtain access to resources

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... number of network operating systems Because of the increasing popularity of the net, having TCP/IP expertise can pave the way to a lucrative, challenging, and rewarding career Inter-In Chapter ... of networkand host information In classful addressing, the network information portion of an IP address (thenetwork ID) is limited to the first 8 bits in a Class A address, the first 16 bits in ... between network and host information in classful addressing.Figure 11-1 offers some example IP addresses separated into network and host information accord-ing to the classful addressing convention.FIGURE

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... of 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 ... that would, by default, represent hostinformation are changed to represent network information instead The change isindicated by a change in the subnet mask’s bits ◆ If you use subnetting on your ... transmitting data to them ◆ A newer variation on traditional subnetting is provided by CIDR (Classless Domain Routing) CIDR offers additional ways of arranging network and host informa-tion in an

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... may incorrectly print to a printer in Duluth from the St Paul office In a worst-casescenario, a “guest” user account may gain rights to a networked printer, potentially creating asecurity hole in ... wire, incorrect pairing, or a termination point In other words, changes inimpedance can indicate where current is stopped or inhibited Although you could use separate instruments for measuring ... Changing the network properties of a network device (for example, changing the IPaddress or host name of a server) ◆ Increasing or decreasing rights for a group of users ◆ Physically moving networked

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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 ... be appointed to focus on maintaining the antivirus measures.This team would be responsible for choosing antivirus software, keeping the softwareupdated, educating users, and responding in case ... suppression to protect against surges and line conditioning, or filtering, to guard against line noise Line ers and UPS units include special noise filters that remove line noise The manufac-turer’s

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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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... Novell, Microsoft, Macintosh, Linux, orUNIX network operating system, you can implement basic security by restricting what usersare authorized to do on a network Every network administrator should ... defense against data theft In other words, if an intruder hasbypassed all other methods of access, including physical security (for instance, he has brokeninto the telecommunications room) and network ... 4Tips for making and keeping passwords secure include the following:◆ Always change system default passwords after installing new programs or equip-ment For example, after installing a router,

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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 beinvolved Identifying goals and answering ... baselining to assess a network’s health ■ Plan and follow regular hardware and software maintenance routines ■ Describe the steps involved in upgrading network software and hardware Trang 7In this ... clarifying the reasons and objectives under-lying a proposed change It involves interviewing users and comparing perceptions to factualdata It probably also involves analyzing network baseline

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... largernetwork’s hardware, software, connectivity, unique configurations, and load ◆ Network management involves assessing, monitoring, and maintaining networkdevices and connections ◆ Baselining includes ... change in the change management system Adding or Upgrading Equipment The difficulty involved in adding or upgrading hardware on your network depends largely onwhether you have used the hardware in ... objectives for a posed change It involves interviewing users and other stakeholders and comparingtheir perceptions to factual data In addition, it may involve analyzing network pro-Chapter 15 697 CHAPTER

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... e. Nothing; in Windows XP the DHCP option is selected by default and theclient will obtain IP addressing information upon connecting to the network 61. You are a support technician installing a ... Windows 98,Windows 2000, and Windows XP workstations You are asked to help a user in the Accounting Department who can retrieve files from thenetwork, but suddenly can’t print to the same printer ... you were attempting the traceroute test.e. Microsoft’s network is bounded by firewalls that do not accept incoming ICMPtraffic 22. What is the network ID for a network that contains the group of

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... 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 A ... technologies, including 1000BASE-LX, 1000BASE-SX, and 1000BASE-CX 802.5—The IEEE standard for Token Ring networking devices and data handling. A+—The professional certification established by CompTIA ... addressing—The scheme for assigning a unique identifying number to every workstation and device on the network The type of addressing used on a network depends on its protocols and network operatingsystem

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... same network ICS host—On a network using the Microsoft Internet Connection Sharing service, the computer whose Internet connection other computers share The ICS host must contain two network interfaces: ... transmit line to the receive line, allowing outgoing signals to beredirected back into the computer for testing loopback test—An attempt to contact one’s own machine for troubleshooting purposes In ... orbiting—See LEO. lpd (line printer daemon)—A UNIX service responsible for printing files placed in the printer queue by thelpr command.lpr lpr—The UNIX command This command simply places files in

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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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