Network+ Guide To Networks, 6th Edition Solution Manual

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Network+Guide to Networks, 6thEditionSolutions1–1Network+ Guide to Networks, 6thEditionChapter 1 SolutionsReviewQuestions1.Which of the following is an advantage of using a client/server network over using apeer-to-peernetwork?a.A client/server network is simpler to set up.b.Aclient/server network allows resources to be managed centrally.c.A client/server network does not require a network operating system.d.A client/server network is less expensive to set up.2.What is the primary function of a file server on aclient/servernetwork?a.It monitors how many users are logged on to a WAN.b.It manages access and use of shared applications and data.c.It prevents unauthorized remote users from connecting to a LAN.d.It routes traffic between two or more LANs.3.Suppose you wanted to share documents among several computers in your household ina peer-to-peerfashion. You could do that by properly configuring which of the following types of software?a.Word-processing softwareb.Remote authentication softwarec.Mail client softwared.Operating system software4.The first services widely used by networks were:a.Faxservicesb.Network management services

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Network+Guide to Networks, 6thEditionSolutions1–2c.Mail servicesd.File and print services5.On a client/server network, clients and servers usually require what to communicate?a.A connectivity deviceb.A Web sitec.Aremote access serverd.A mail server6.Your colleague, in describing the benefits of a client/server network, mentions that it’s more scalable than apeer-to-peer network. What does she mean by this?a.The client/server network can be more easily expanded.b.The client/server network is simpler to set up.c.The client/server network can be run on free software.d.The client/server network allows more users to log on at one time.7.In which of the following environments would aWAN be most appropriate?a.Alarge data center in which each employee’s access is centrally controlledb.A global hotel chain connecting its reservation desks to a central call centerc.A home office connecting its personal computers between the den, living room, andbedroomd.A local newspaper connecting to a global news agency's Web site8.Which of the followingrefers to the combination of voice (such as telephone), video,and data signals sentover the same network?a.Switchingb.Remote accessc.Convergenced.Network management9.In networking, what does a packet refer to?a.An electrical signalb.A unit of datac.An alarm

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Network+Guide to Networks, 6thEditionSolutions1–3d.A way to connect a node with a network10.How can a serverdistinguishbetween many clients on a network?a.Each client is identified by a unique network address.b.Eachclientregularly transmits a signal that indicates its network location and uniqueclientcharacteristics.c.Eachclienthas a different electromagnetic characteristic to its signal, similar to differencesinhuman voices.d.Eachclientuses uniquely modified versions of the same network protocol.11.What device connects a client computer to a network's medium, such as a wire?a.Network line extenderb.Network terminatorc.Network junction clipd.Network interface card12.What elements of a network ensure that data arrive at their intended destination in the correctsequence?a.Ringsb.Backbonesc.Protocolsd.File servers13.The physical layout of nodes on a network is known as the network's:a.Topologyb.Schematicc.Formationd.Grid14.Which of the following is an example of a mail service?a.Preventing unauthorized users from gaining access to the network and, in particular, to its mailserverb.Ensuring that users are not running more copies of an e-mail client than have beenpurchased

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Network+Guide to Networks, 6thEditionSolutions1–4c.Exchanging messages between mail servers on different networksd.Enabling users to print messages from their e-mail client software15.Which of the following network topologies is most common on today's networks?a.Ringb.Fanc.Stard.Bus16.Security is a concern when using remote access servers on a network because:a.Access servers enable computers to connect to a network and obtain access to its resources,thereby exposing the network to the outside world.b.Access servers have poor password enforcement capabilities and rely on users tochoose goodpasswords.c.Access servers cannot accept encoded data transfers, requiring users to transmitplain text to andfrom the network.d.Access servers are difficult to understand and support, and so many networks areusing themincorrectly and perhaps insecurely.17.Which of the following is an example of asset management on a client/server network?a.Ensuring that sensitive data is secured from unauthorized accessb.Assessing the peak activity times on a server and ensuring extra processing power is available atthose timesc.Backing up critical data files on a regular basisd.Determining how many handheld computers are in a company’s warehouse18.Distributing data transfer activity equally over several devices or components belongs towhich category ofnetwork management services?a.Traffic monitoringb.Load balancingc.Address managementd.File and print services

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Network+Guide to Networks, 6thEditionSolutions1–519.Apache is a popular example of what type of networking software?a.License trackingb.Web serverc.Backupd.Mail server20.What organization sponsors the CCNA and CCIE certifications?a.Ciscob.CompTIAc.IEEEd.WITIHands-On ProjectsProject 1-1•Steps 1–2: After drawing a simple network diagram, students shoulddemonstrate an understanding of the bus topology and peer-to-peer networkingconcepts.•Steps 3–4: Students should demonstrate an understanding of the star topologyand the path data would follow in a peer-to-peer network using this topology.•Steps 5–6: Students should become familiar with how nodes are added to a startopology network, then demonstrate how a peer-to-peer network can betransformed into a client/server network. They should also begin to visualize howdata travels on a client/server network.•Steps 7–9: Students should demonstrate how a star-bus topology network is

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Network+Guide to Networks, 6thEditionSolutions1–6created and begin to visualize how data travels over such a network.•Step 10: Based on students’ experience in sketching some different network types,they should conclude that a network based on a star or star-bus topology issimpler to expand than a bus topology network.•Step 11: Students should see that a simple bus topology network requires lesscabling and connectivity hardware than the star or star-bus topology networks.Project 1-2•Steps 1–7: Students should become familiar with the steps they’ll commonly useto access networking parameters when adding new network components,modifying network connection and component configurations, andtroubleshooting client network problems on aclient running the Windows 7operating system.•Steps 8–12: Students will learn howto share a workstation’s public folders witha Homegroup,a task that might be necessary when setting up a peer-to-peernetwork in a simple home office orsmall office environment.Project 1-3Results from the students’ job searches in this project will vary. However, studentsshould get a sense of which networking skills and specialties are in demand. This projectalso further familiarizes students who are new to networking with the popular hardwareand software products they’ll encounter.

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Network+Guide to Networks, 6thEditionSolutions1–7Case ProjectsCase Project 1-1Since Thrift Towne wants an inexpensive solution, does not have many users, and doesnot care much about security, a peer-to-peer network is an adequate option (though aclient/server network wouldnecessarilynot be incorrect). In order to make this solutionwork, the file sharing and access on each computer will need to be modified. If aclient/server solution is suggested,onecomputer should be designated as the server.Whether a peer-to-peer or client/server architecture is selected, each computer ought tobe supplied with a Network Interface Card (NIC). All necessary cablingwill also need tobe obtained. This is potentially all the extra software or hardware Thrift Towne wouldneed to purchase in order to implement a peer-to-peer network.CaseProject 1-2The type of network services that can help Scoops determine what type of traffic iscrossing their network belong to the network management category of functions. Byusing various network management tools, Scoops can find out the precise amount oftraffic at any time, when the heaviest amount of traffic occurs, and each transmission’ssource,destination, and protocol type.After analyzing this data, the IT staff at Scoopscan decide if all the traffic is legitimate and necessary. If it is, they can use thetrafficvolume information to determine whether they need to upgrade their network’s capacity.

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Network+Guide to Networks, 6thEditionSolutions1–8Given Scoops’ network configuration, it probably also requires file and print services,security services (because of sales and employee data),and possibly mail andInternetservices.Case Project 1-3Answers will vary, but after researching the differences between Windows Server2008andDebianLinux, students should be able to identify the similarities and differences inhow the two operating systems handle file sharing, remote access, and mail services. (Forexample, what software each supports for these services, the ease of configuration, andthe type of customer support to expect.) The decision to recommend theuse of Linux isalso subjectiveand might depend on the students’ perception of the ease with whichLinux can be managed,compared to Windows Server 2008.

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Network+Guide to Networks, 6thEditionSolutions2–1Network+ Guide to Networks, 6thEditionChapter2SolutionsReviewQuestions1.Your supervisor has asked you to correct several cable management problems thatmight be slowing down the network. Which organization’s standards will guide youinassessing your firm’s current cabling situation?a.ISOb.ITUc.TIA/EIAd.IEEE2.Which technology does the IEEE 802.11specification describe?a.Network securityb.Ethernet LANsc.Logical Link Controld.Wireless networks3.You are configuring clients to communicate over an Ethernet LAN. Which of thefollowing IEEE specifications will identify which frame type your client should use?a. 801.2

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Network+Guide to Networks, 6thEditionSolutions2–2b. 802.3c. 802.11d. 801.164.Which layer of the OSI model is responsible for issuingacknowledgments (ACKs)?a.Application layerb.Data Link layerc.Network layerd.Transport layer5.Suppose your network is connected to another network via a router. Which OSImodel layer provides the information necessary to direct data between the twonetworks ?a.Data Link layerb.Physical layerc.Network layerd.Session layer6.In which two layers of the OSI model do NICs belong?a.Presentation and Application layersb.Transport and Network layersc.Network and Data Link layersd.Physical and Data Link layers7.Which OSI model layer is responsible for keeping open a communications pathbetweenyour computer and the server when you dial in to a remote access server?a.Session layer

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Network+Guide to Networks, 6thEditionSolutions2–3b.Data Link layerc.Presentation layerd.Physical layer8.Under what circumstances would the Transport layer use segmentation?a.When too many data frames are flooding into a receiving node’s NICb.When more than 10 percent of transmitted frames are damagedc.When the destination nodecannot accept the size of the data blockstransmitted by the source noded.When the source node requests that data blocks be segmented for fasterprocessing9.Which OSI model layer generates and detects voltage so as to transmit and receivesignals carrying data?a.Physical layerb.Data Link layerc.Network layerd.Transport layer10.An IP address is an example of what type of address?a.Physical layerb.Network layerc.MAC sublayerd.Data Link sublayer11.If the TCP protocol did not receive an acknowledgment for data it transmitted, whatwould it do?

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Network+Guide to Networks, 6thEditionSolutions2–4a.Issue its own acknowledgment, indicating to the recipient that it did not receivetheacknowledgment it expectedb.Issue a warning frame to tell the recipient it would retransmit the data if it did notreceive the acknowledgment within a certain time framec.Reestablish the connection with the recipientd.Retransmit the data to the recipient12.Which part of a MAC address is unique to each manufacturer?a.The destination IDb.The OUIc.The physical node IDd.TheSYN13.What is the purpose of the trailer field added to a frame in the Data Link layer?a.Toindicatethe sum of the error-checking algorithmb.Tosignalthe rate at which a node can receive the datac.To mark the end of a framed.To represent the frame’s sequence number14.Which layer of the OSI model encapsulates Network layer packets?a.Physical layerb.Session layerc.Data Link layerd.Transport layer15.At what OSI model layer do protocols manage data delivery priorities?a.Presentation layer

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Network+Guide to Networks, 6thEditionSolutions2–5b.Session layerc.Transport layerd.Network layer16.What are the sublayers of the Data Link layer as defined in the IEEE 802 standards?a.Logical Link Control sublayer and Media Access Controlsublayerb.Transport Control sublayer and Media Access Control sublayerc.Logical Link Control sublayer and Physical Addressing sublayerd.Transport Control sublayer and Data Link Control sublayer17.Suppose that, at the receiving node, a frame’s FCS doesn’t match the FCS it wasissuedat the transmitting node. What happens as a result?a.The receiving node’s Transport layer assesses the error and corrects it.b.The transmitting node’s Data Link layer assesses the error and corrects it.c.The receiving node’s Data Link layer requests a retransmission.d.The transmitting node’s Transport layer immediately issues a replacement frame.18.In which of the following situations would it be most desirable to use a connectionlessTransport layerprotocol?a.When retrieving a spreadsheet from a busy file serverb.When viewing a movie on the Webc.When connecting to a graphics-intensive Web sited.When sending an e-mail message to a long list of recipients19.Which of the following would be found in a Data Link layer header?a.The packet’s fragmentation offsetb.The packet’s sequence number

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Network+Guide to Networks, 6thEditionSolutions2–6c.The source’s logical addressd.The source’s physical address20.By default, what is the largest data payload that packets on an Ethernet network canaccept?a.64 bytesb.128 bytesc.1500 bytesd.2400 bytesHands-On ProjectsProject 2-1In this project, students become familiar with the role of IEEE in settingnetworking standards. They also learn how to find the IEEE standards that areavailable online. Finally, by viewinga popular IEEE standard, they becomefamiliar with the content and scope of an IEEE standards document.Project 2-2This project provides students with a way to make tangible the invisible andtheoretical process of data transformation through the OSI Model layers. Bydrawing PDUs at each layer, students will strengthen their understanding of eachlayer’s function and establish a mental image they can later recall.

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Network+Guide to Networks, 6thEditionSolutions2–7Project 2-3This project provides students with two methods of discerning the MAC addressof aWindows or Linuxworkstation, a skill theymightuse when troubleshootingnetwork problems.Sections 1 and 2,Steps 1–4: Students obtain thephysicaladdress of theirWindowsor Linuxworkstations electronically.Section 3,Steps1–9: Students obtain thephysicaladdress of their workstationsby viewing the NIC’s printed sticker.Note: If a network administrator has changed the NIC’s MAC addressthrough aconfiguration utility, these two addresses will not match.Case ProjectsCase Project 2-1Students should answer that because two different frametypes cannot directlyexchange information on a network,the NIC’s configuration must be returned toits original settings(using Ethernet frames)tocommunicate on the network.Inaddition, students should be able to explain why policies to restrict changes onshared lab computers are important.Case Project 2-2The student’s drawing should illustrate that at the Application layer, HTTPinitiatesa request from the Web client to the Web server (and later, interpretstheresulting response).Next,the request for the Web page data will follow the same

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