What is a network baseline, and when is it established?
> What roles do SMTP, POP, and IMAP play in sending and receiving email on the Internet?
> What types of cables are commonly used in wired LANs?
> Describe the basic components of a wireless LAN.
> As WLANs become more powerful, what are the implications for networks of the future? Will wired LANS still be common or will we eliminate wired offices?
> Many of the wired and wireless LANs share the same or similar components (e.g., error control). Why?
> Describe the basic components of a wired LAN.
> Describe three ways to improve network performance on circuits.
> Describe three ways to improve network performance on the server.
> What is a bottleneck and how can you locate one?
> What are three special-purpose devices you might find in a data center and what do they do?
> How does the design of the data center differ from the design of the LANs intended to provide user access to the network?
> Describe how mail user agents and mail transfer agents work together to transfer mail messages.
> How do you decide how many APs are needed and where they should be placed for best performance?
> What is a site survey, and why is it important?
> What are the best practice recommendations for WLAN design?
> What are the best practice recommendations for wired LAN design?
> Explain how association works in WLAN.
> Describe at least three types of servers.
> Explain how CSMA/CA PCF works.
> Explain how CSMA/CA DCF works.
> How does Wi-Fi differ from shared Ethernet in terms of topology, media access control, and error control, Ethernet frame?
> How does Wi-Fi perform media access control?
> Can a mail sender use a two-tier architecture to send mail to a receiver using a three-tier architecture? Explain.
> Compare and contrast the two types of antennas.
> Compare and contrast cut-through, store-and-forward, and fragment-free switching.
> How do Ethernet switches know where to send the frames they receive? Describe how switches gather and use this knowledge.
> Explain the terms 100Base-T, 100Base-F, 1000Base-T, 10 GbE, and 10/100/1000 Ethernet.
> Briefly describe how CSMA/CD works.
> How does a logical topology differ from a physical topology?
> Define local area network.
> What is an RFP, and why do companies use them?
> On what should the design plan be based?
> How can a network design tool help in network design?
> Describe how a Web browser and Web server work together to send a Web page to a user.
> Describe the key parts of the technology design step.
> Why is it important to analyze needs in terms of both application systems and users? 1
> What is the most important principle in designing networks?
> Describe the three major steps in current network design.
> For what types of networks are network design tools most important? Why?
> Why do you think some organizations were slow to adopt a building-block approach to network design?
> How does the traditional approach to network design differ from the building-block approach?
> Is it important to have the fastest wireless LAN technology in your apartment? What about in the library of your school? Explain.
> What is a bottleneck, and why do network managers care about them?
> What are typical speeds for the LAN, building backbone, and campus backbone? Why?
> For what is HTML used?
> What is the difference between a building backbone and a campus backbone, and what are the implications for the design of each?
> What are the seven network architecture components?
> What is the turnpike effect, and why is it important in network design?
> What issues are important to consider in explaining a network design to senior management?
> What are some major problems that can cause network designs to fail?
> What are the key parts of an RFP?
> What are the keys to designing a successful data communications network?
> How does dynamic addressing work?
> What is a subnet mask?
> For what is HTTP used? What are its major parts?
> What is a subnet and why do networks need them?
> How does TCP establish a session?
> How is TCP different from UDP?
> Compare and contrast the three types of addresses used in a network.
> What are the parts of TCP/IP and what do they do? Who is the primary user of TCP/IP?
> Describe the anatomy of a router. How does a router differ from a computer?
> What is the transmission efficiency of a 5,000-byte file sent in response to a Web request HTTP, TCP/IP, and Ethernet? Assume that the HTTP packet has 100 bytes in addition to the 5,000-byte file. Assume that the maximum packet size is 1,200 bytes. Remem
> What is the transmission efficiency of a 1,000-byte file sent in response to a Web request HTTP, TCP/IP, and Ethernet? Assume that the HTTP packet has 100 bytes in addition to the 1,000-byte file. Remember from Chapter 4 that deficiency = user data/total
> What is the transmission efficiency of a 10-byte Web request sent using HTTP, TCP/IP, and Ether-net? Assume that the HTTP packet has 100 bytes in addition to the 10-byte URL. Remember from Chapter 4 that deficiency = user data/total transmission size.
> What type of routing does a TCP/IP client use? What type of routing does a TCP/IP gateway use? Explain.
> What is a network computer?
> How does static routing differ from dynamic routing? When would you use static routing? When would you use dynamic routing?
> Why does HTTP use TCP and DNS use UDP?
> Explain how the client computer in Figure5-16 (128.192.98.xx) would obtain the data link layer address of its subnet router.
> Explain how multicasting works.
> What does the network layer do?
> Compare and contrast unicast, broadcast, and multicast messages.
> What is QoS routing and why is it useful?
> What is a session?
> What are the differences between connectionless and connection-oriented messaging?
> How does decentralized routing differ from centralized routing?
> Compare and contrast the three cloud computing models.
> What are the different types of application architectures?
> Which is best for the International Services Division, a dedicated-server network or peer-to-peer LAN? Explain your choice. 2. Draw a network plan using Microsoft Visio that includes the general layout of the LAN (computers, servers, cables, hubs/switche
> One important issue in designing Ethernet lies in making sure that if a computer transmits a frame, any other computer that attempts to transmit at the same time will be able to hear the incoming frame before it stops trans- mitting, or else a collision
> Computer Dynamics is a microcomputer software development company that has a 300-computer network. The company is located in three adjacent five-story buildings in an office park, with about 100 computers in each building. The LANs in each building are s
> Review the topics in this chapter. Prepare an agenda for your training session. The agenda should be an outline, showing topics and subtopics with enough detail to allow the reader to follow. Remember Bob Jones' advice on what the management and staff wi
> Suppose that you are the network manager for Central University, a medium-sized university with 13,000 students. The university has 10 separate colleges (e.g., business, arts, journalism), 3 of which are relatively large (300 faculty and staff members, 2
> What file transfer protocols would you recommend? Be prepared to support your recommendations. 2. Prepare a brief position paper on the types of errors you can expect in the NDAS network and the steps you believe NDAS can take to prevent, detect, and cor
> Smith, Smith, Smith, and Smith is a regional accounting firm that is putting up a new headquarters building. he building will have a backbone network that connects eight LANs (two on each floor). he company is very concerned with network errors. What adv
> Fred Jones, a distant relative of yours and president of Deals-R-Us Brokers (DRUB), has come to you for advice. DRUB is a small brokerage house that enables its clients to buy and sell stocks over the Internet, as well as place traditional orders by phon
> Briefly describe the current state of Next Day Air Service's office automation, system integration, and networking. Begin by explaining how each department uses information technology, what hardware it uses, and what functions currently are automated. Al
> Eureka! is a telephone- and Internet- based concierge service that specializes in obtaining things that are hard to find (e.g., Super Bowl tickets, first-edition books from the 1500s, Faberge eggs). It currently employs 60 staff members who collectively
> John Adams is the chief information officer (CIO) of Global Consultants (GC), a very large consulting firm with offices in more than 100 countries around the world. GC is about to purchase a set of several Internet-based financial software packages that
> City School District is a large, urban school district that operates 27 schools serving 22,000 students from kindergarten through grade 12. All schools are networked into a regional WAN that connects the schools to the district central office and each ot
> Prepare a report outlining the major security threats faced by NDAS. Be sure to identify those that you think are major threats and those that are minor threats. 2. Prepare a partial risk assessment for NDAS that includes their major assets, threats and
> Belmont State Bank is a large bank with hundreds of branches that are connected to a central computer system. Some branches are connected over dedicated circuits and others use Multi-Protocol Label Switching(MPLS). Each branch has a variety of client com
> What type of Internet access technologies would you recommend for the Atlanta, New Orleans, and the corporate office in Tampa and other locations as well? 2. Outline the advantages and disadvantages of the three approaches to for creating a web presence
> Your cousin Cathy runs a part-time business out of her apartment. She buys and sells collectibles such as antique prints, baseball cards, and cartoon cells and has recently discovered the Web with its many auction sites. She has begun buying and selling
> With your knowledge of NDAS's network, what service would you recommend for the future to connect the remote offices to the hubs at Atlanta and New Orleans and the hubs to the corporate office in Tampa? Will the current facilities be adequate? 2. Preside
> Cookies Are Us runs a series of 100 cookie stores across the mid-western United States and central Canada. At the end of each day, the stores send sales and inventory data to headquarters, which uses the data to ship new inventory and plan marketing camp
> For this case, one may assume that there are LANs in four department offices (Data Processing, Accounts Payable, Information Services, and Agent Operations) and at Fleet Maintenance and Dispatch in the Secondary Building. What type of backbone network do
> Pat’s Engineering Works is a small company that specializes in complex engineering consulting projects. The projects typically involve one or two engineers who do data-intensive analyses for companies. Because so much data are needed, t
> Prepare a brief management summary on the technical essential aspects of the Internet and the World Wide Web and how they work. Remember, the audience is not technical. He is confused about the relationship between the World Wide Web and the Internet and
> Use the following information to compute the confidence interval for the population proportion. a) n = 715 and x = 329, with 95% confidence b) n = 284 and p^ = .71, with 90% confidence c) n = 1250 and p^ = .48, with 95% confidence d) n = 457 and x = 270,
