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Network+ Guide To Networks, 6th Edition Solution Manual

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    Network+ Guide to Networks, 6 th Edition Solutions 1 – 1 Network+ Guide to Networks, 6 th Edition Chapter 1 Solutions Revie w Questions 1. Which of the following is an advantage of using a client/server network over using a peer - to - peer network? a. A client/server network is simpler to set up. b. A client/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 a client/server network? 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 in a peer - to - peer fashion. You could do that by properly configuring which of the following types of software? a. Word - processing software b. Remote authentication software c. Mail client software d. Operating system software 4. The first services widely used by networks were: a. Fax services b. Network management services

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    Network+ Guide to Networks, 6 th Edition Solutions 1 – 2 c. Mail services d. File and print services 5. On a client/server network, clients and servers usually require what to communicate? a. A connectivity device b. A Web site c. A remote access server d. A mail server 6. Your colleague, in describing the benefits of a client/server network, mentions that it’s more scalable than a peer - 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 a W AN be most appropriate? a. A large data center in which each employee’s access is centrally controlled b. A global hotel chain connecting its reservation desks to a central call center c. A home office connecting its personal computers between the den, living room, and bedroom d. A local newspaper connecting to a global news agency's Web site 8. Which of the following refers to t he combination of voice (such as telephone), video, and data signals sent over the same network? a. Switching b. Remote access c. Convergence d. Network management 9. In networking, what does a packet refer to? a. An electrical signal b. A unit of data c. An alarm

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    Network+ Guide to Networks, 6 th Edition Solutions 1 – 3 d. A way to connect a node with a network 10. How can a server distinguish between many clients on a network? a. Each client is identified by a unique network address. b. Each client regularly transmits a signal that indicates its network location and unique client characteristics. c. Each client has a different electromagnetic characteristic to its signal, similar to differences in human voices. d. Each client uses 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 extender b. Network terminator c. Network junction clip d. Network interface card 12. Wh at elements of a network ensure that data arrive at their intended destination in the correct sequence? a. Rings b. Backbones c. Protocols d. File servers 13. The physical layout of nodes on a network is known as the network's: a. Topology b. Schematic c. Formation d. Grid 14. 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 mail server b. Ensuring that users are not running more copies of an e - mail client than have been purchased

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    Network+ Guide to Networks, 6 th Edition Solutions 1 – 4 c. Exchanging messages between mail servers on different networks d. Enabling users to print messages from their e - mail client software 15. Which of the following network topologies is most common on today's networks? a. Ring b. Fan c. Star d. Bus 16. 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 to choose good passwords. c. Access servers cannot accept encoded data transfers, requiring users to transmit plain text to and from the network. d. Access servers are difficult to understand and support, and so many networks are using them incorrectly 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 access b. Assessing the peak activity times on a server and ensuring extra processing power is available at those times c. Backing up critical data files on a regular basis d. Determining how many handheld computers are in a company’s warehouse 18. Distributing data transfer activity equally over several devices or components belongs to which category of network management services? a. Traffic monitoring b. Load balancing c. Address management d. File and print services

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    Network+ Guide to Networks, 6 th Edition Solutions 1 – 5 19. Apache is a popular example of what type of networking software? a. License tracking b. Web server c. Backup d. Mail server 20. What organization sponsors the CCNA and CCIE certifications? a. Cisco b. CompTIA c. IEEE d. WITI Hands - On Projects Project 1 - 1 • Steps 1 – 2: After drawing a simple network diagram, students should demonstrate an understanding of the bus topology and peer - to - peer networking concepts. • Steps 3 – 4: Students should demonstrate an understanding of the star topology and 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 star topology network, then demonstrate how a peer - to - peer network can be transformed into a client/server network. They should also begin to visualize how data 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, 6 th Edition Solutions 1 – 6 created 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 is simpler to expand than a bus topology network. • Step 11: Students should see that a simple bus topology network requires less cabling 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 use to access networking parameters when adding new network components, modifying network connection and component configurations, and troubleshooting client network problems on a client running the Windows 7 operating system . • St eps 8 – 12 : Students will learn how to share a workstation’s public folders with a Homegroup, a task that might be necessary when setting up a peer - to - peer network in a simple home office or small office environment . Project 1 - 3 Results from the students’ job searches in this project will vary. However, students should get a sense of which networking skills and specialties are in demand. This project also further familiarizes students who are new to networking with the popular hardware and software products they’ll encounter.

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    Network+ Guide to Networks, 6 th Edition Solutions 1 – 7 Case Projects Case Project 1 - 1 Since Thrift Towne wants an inexpensive solution, does not have many users, and does not care much about security, a peer - to - peer network is an adequate option (though a client/server network would necessarily not be incorrect). In order to make this solution work, the file sharing and access on each co mputer will need to be modified . If a client/server solution is suggested, one computer should be designated as the server. Whether a peer - to - peer or client/server architecture is selected , each computer ought to be supplied with a Network Interface Card (NIC) . A ll necessary cabling will also need to be obtained . This is potentially all the extra software or hardware Thrift Towne would need to purchase in order to implement a peer - to - peer network. Case Project 1 - 2 The type of network services that can help Scoops determine what type of traffic is crossing their network belong to the network management category of functions. By using various network management tools, Scoops can find out the precise amount of traffic at any time, when the heaviest amount of traffic occurs, and each transmission’s source, destination, and protocol type. After analyzing this data, the IT staff at Scoops can decide if all the traffic is legitimate and necessary. If it is, they can use the traffic volume information to determine whether they need to upgrade their network’s capacity.

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    Network+ Guide to Networks, 6 th Edition Solutions 1 – 8 Given Scoops’ network configuration, it probably also requires file and print services, security services (because of sales and employee data), and possibly mail and Internet services. Case Project 1 - 3 Answers will vary, but after researching the differences between Windows Server 2008 and Debian Linux, students should be able to identify the similarities and differences in how the two operating systems handle file sharing, remote access, and mail services. (For example, what software each supports for these services, the ease of configuration, and the type of customer support to expect.) The decision to recommend the use of Linux is also subjective and might depend on the students’ perception of the ease with which Linux can be managed, compared to Windows Server 2008 .

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    Network+ Guide to Networks, 6 th Edition Solutions 2 – 1 Network+ Guide to Networks, 6 th Edition Chapter 2 Solutions Revie w Questions 1. Your supervisor has asked you to correct several cable management problems that might be slowing down the network. Which organization’s standards will guide you in assessing your firm’s current cabling situation? a. ISO b. ITU c. TIA/EIA d. IEEE 2. Which technology does the IEEE 802. 11 specification describe? a. Network security b. Ethernet LANs c. Logical Link Control d. Wireless networks 3 . You are configuring clients to communicate over an Ethernet LAN. Which of the following IEEE specifications will identify which frame type your client should use? a. 801.2

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    Network+ Guide to Networks, 6 th Edition Solutions 2 – 2 b. 802.3 c. 802.11 d. 801.16 4. Which layer of the OSI model is responsible for issuing acknowledgments (ACKs)? a. Application layer b. Data Link layer c. Network layer d. Transport layer 5. Suppose your network is connected to another network via a router. Which OSI model layer provides the information necessary to direct data between the two networks ? a. Data Link layer b. Physical layer c. Network layer d. Session layer 6. In which two layers of the OSI model do NICs belong? a. Presentation and Application layers b. Transport and Network layers c. Network and Data Link layers d. Physical and Data Link layers 7. Which OSI model layer is responsible for keeping open a communications path between your computer and the server when you dial in to a remote access server? a. Session layer

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    Network+ Guide to Networks, 6 th Edition Solutions 2 – 3 b. Data Link layer c. Presentation layer d. Physical layer 8. Under what circumstances would the Transport layer use segmentation? a. When too many data frames are flooding into a receiving node ’ s NIC b. When more than 10 percent of transmitted frames are damaged c. When the destination node cannot accept the size of the data blocks transmitted by the source node d. When the source node requests that data blocks be segmented for faster processing 9. Which OSI model layer generates and detects voltage so as to transmit and receive signals carrying data? a. Physical layer b. Data Link layer c. Network layer d. Transport layer 10. An IP address is an example of what type of address? a. Physical layer b. Network layer c. MAC sublayer d. Data Link sublayer 11. If the TCP protocol did not receive an acknowledgment for data it transmitted, what would it do?

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    Network+ Guide to Networks, 6 th Edition Solutions 2 – 4 a. Issue its own acknowledgment, indicating to the recipient that it did not receive the acknowledgment it expected b. Issue a warning frame to tell the recipient it would retransmit the data if it did not receive the acknowledgment within a certain time frame c. Reestablish the connection with the recipient d. Retransmit the data to the recipient 12. Which part of a MAC address is unique to each manufacturer? a. The destination ID b. The OUI c. The physical node ID d. The SYN 13. What is the purpose of the trailer field added to a frame in the Data Link layer? a. To indicate the sum of the error - checking algorithm b. To signal the rate at which a node can receive the data c. To mark the end of a frame d. To represent the frame ’ s sequence number 14. Which layer of the OSI model encapsulates Network layer packets? a. Physical layer b. Session layer c. Data Link layer d. Transport layer 15. At what OSI model layer do protocols manage data delivery priorities? a. Presentation layer

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    Network+ Guide to Networks, 6 th Edition Solutions 2 – 5 b. Session layer c. Transport layer d. Network layer 16. What are the sublayers of the Data Link layer as defined in the IEEE 802 standards? a. Logical Link Control sublayer and Media Access Control sublayer b. Transport Control sublayer and Media Access Control sublayer c. Logical Link Control sublayer and Physical Addressing sublayer d. Transport Control sublayer and Data Link Control sublayer 17. Suppose that, at the receiving node, a frame ’ s FCS doesn ’ t match the FCS it was issued at 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. 1 8 . In which of the following situations would it be most desirable to use a connectionless Transport layer protocol? a. When retrieving a spreadsheet from a busy file server b. When viewing a movie on the Web c. When connecting to a graphics - intensive Web site d. When sending an e - mail message to a long list of recipients 19 . Which of the following would be found in a Data Link layer header? a. The packet ’ s fragmentation offset b. The packet ’ s sequence number

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    Network+ Guide to Networks, 6 th Edition Solutions 2 – 6 c. The source ’ s logical address d. The source’s physical address 20. By default, what is the largest data payload that packets on an Ethernet network can accept? a. 64 bytes b. 128 bytes c. 1500 bytes d. 2400 bytes Hands - On Projects Project 2 - 1 In this project, students become familiar with the role of IEEE in setting networking standards. They also learn how to find the IEEE standards that are available online. Finally, by viewing a popular IEEE standard , they become familiar with the content and scope of an IEEE standards document. Project 2 - 2 This project provides students with a way to make tangible the invisible and theoretical process of data transformation through the OSI Model layers. By drawing PDUs at each layer, students will strengthen their understanding of each layer’s function and establish a mental image they can later recall.

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    Network+ Guide to Networks, 6 th Edition Solutions 2 – 7 Project 2 - 3 This project provides students with two methods of discerning the MAC address of a Windows or Linux workstation, a skill they might use when troubleshooting network problems. Sections 1 and 2, Steps 1 – 4 : Students obtain the physical address of their Windows or Linux workstations electronically. Section 3, Steps 1 – 9 : Students obtain the physical address of their workstations by viewing the NIC’s printed sticker. Note: If a network administrator has changed the NIC’s MAC address through a configuration utility , these two addresses will not match. Case Projects Case Project 2 - 1 Students should answer that because t wo different frame types cannot directly exchange informatio n on a network, the NIC’s configuration must be returned to its original settings (using Ethernet frames) to communicate on the network . In addition, students should be able to explain why policies to restrict changes on shared lab computers are important. Case Project 2 - 2 The student’s drawing should illustrate that at the Application layer, HTTP initiate s a request from the Web client to the Web server (and later, interpret s the resulting response). Next, the request for the Web page data will follow the same

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