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business communication essentials
Business Data Communications And Networking 10th Edition Jerry FitzGerald, Alan Dennis - Solutions
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?
What does the network layer do?
What does the transport layer do?
Show how the word “HI” would be sent using asynchronous transmission using even parity(make assumptions about the bit patterns needed).Show how it would be sent using Ethernet.
What media access control technique does your class use?
Are large frame sizes better than small frame sizes? Expain.
Under what conditions does a data link layer protocol need an address?
During the 1990s, there was intense competition between two technologies (10-Mbps Ethernet and 16-Mbps token ring) for the LAN market.Ethernet was promoted by a consortium of vendors, whereas token ring was primarily an IBM product, even though it was standardized. Ethernet won, and no one talks
Are stop bits necessary in asynchronous transmission?Explain using a diagram.
How do information bits differ from overhead bits?
What is transmission efficiency?
Describe the frame layouts for SDLC, Ethernet and PPP.
Which is the simplest (least sophisticated)protocol described in this chapter?
Compare and contrast stop-and-wait ARQ and continuous ARQ.
Under what circumstances is forward error correction desirable?
How does forward error correction work? How is it different from other error-correction methods?
How does CRC work?
Briefly describe how checksum works.
Briefly describe how even parity and odd parity work.
Describe three approaches to detecting errors, including how they work, the probability of detecting an error, and any other benefits or limitations.
What are three ways of reducing errors and the types of noise they affect?
How do amplifiers differ from repeaters?
Describe four types of noise. Which is likely to pose the greatest problem to network managers?
Briefly define noise.
Is there any difference in the error rates of lower-speed lines and higher-speed lines?
Errors normally appear in , which is when more than 1 data bit is changed by the error-causing condition.
Define two fundamental types of errors.
Which is better, controlled access or contention? Explain.
Compare and contrast roll-call polling, hub polling (or token passing), and contention.
Under what conditions is media access control unimportant?
What is media access control, and why is it important?
What does the data link layer do?
What is VoIP?
What is the symbol rate of a digital circuit providing 100 Mbps if it uses bipolar NRz signaling?
What is the capacity of a digital circuit with a symbol rate of 10MHz using Manchester encoding?
What is the maximum data rate of an analog circuit with a 10MHz bandwidth using 64-QAM and V.44?
What is the maximum capacity of an analog circuit with a bandwidth of 4,000 Hz using QAM?
Some experts argue that modems may soon become obsolete. Do you agree?Why or why not?
If you were buying a multiplexer, why would you choose either TDM or FDM? Why?
What is the function of inverse multiplexing(IMUX)?
Of the different types of multiplexing, what distinguishesa. frequency division multiplexing (FDM)?b. time division multiplexing (TDM)?c. statistical time division multiplexing(STDM)?d. wavelength division multiplexing (WDM)?
How does DSL (digital subscriber line) work?
What is the purpose of multiplexing?
What is the term used to describe the placing of two or more signals on a single circuit?
What is quantizing error?
Explain how pulse code modulation(PCM) works.
What data compression standard uses Lempel-Ziv encoding? Describe how it works.
Why is data compression so useful?
What is oversampling?
What factors affect transmission speed?
What is 64-QAM?
What is quadrature amplitude modulation(QAM).
What is a modem?
Is the bit rate the same as the symbol rate? Explain.
Describe how data could be transmitted using a combination of modulation techniques.
Describe how data could be transmitted using phase modulation.
Describe how data could be transmitted using frequency modulation.
Describe how data could be transmitted using amplitude modulation.
What is bandwidth? What is the bandwidth in a traditional North American telephone circuit?
What are three important characteristics of a sound wave?
How does bipolar signaling differ from unipolar signaling? Why is Manchester encoding more popular than either?
What feature distinguishes serial mode from parallel mode?
How is data transmitted in parallel?
Briefly describe three important coding schemes.
What is coding?
Explain why most telephone company circuits are now digital.
Clearly explain the differences among analog data, analog transmission, digital data, and digital transmission.
How does analog data differ from digital data?
Describe four types of wireless media.
Describe three types of guided media.
Describe the three types of data flows.
How does a multipoint circuit differ from a point-to-point circuit?
Will the Internet become an essential business tool like the telephone or will it go the way of the dinosaurs? Discuss.
You can use a Web browser to access an FTP server simply by putting ftp:// in front of the URL(e.g., ftp://xyz.abc.com). If that server has FTP server software installed, then the FTP server will respond instead of the Web server. What is your browser doing differently to access the FTP server?
Some experts argue that thin-client client-server architectures are really host-based architectures in disguise and suffer from the same old problems. Do you agree? Explain.
Which of the common application architectures for e-mail (two-tier client server, Web-based) is “best”? Explain.
Compare and contrast the application architecture for videoconferencing and the architecture for e-mail.
Explain how instant messaging works.
What is a Listserv and how could you use it to get information?
What is Telnet, and why is it useful?
What is FTP, and why is it useful?
What is a virtual server?
What are the major parts of an e-mail message?
What roles do SMTP, POP, and IMAP play in sending and receiving e-mail on the Internet?
Describe how mail user agents and mail transfer agents work together to transfer mail messages.
Can a mail sender use a 2-tier architecture to send mail to a receiver using a 3-tier architecture? Explain.
Describe how a Web browser and Web server work together to send a Web page to a user.
For what is HTML used?
For what is HTTP used? What are its major parts?
What do the following tools enable you to do: the Web, e-mail, FTP, Telnet?
What is a network computer?
How does a thin client differ from a thick client?
Compare and contrast two-tier, three-tier, and n-tier client-server architectures. What are the technical differences, and what advantages and disadvantages does each offer?
Which is less expensive: host-based networks or client-server networks? Explain.
Suppose your organization was contemplating switching from a host-based architecture to client-server. What problems would you foresee?
What is middleware, and what does it do?
What are the advantages and disadvantages of host-based networks versus client-server networks?
Describe the four basic functions of an application software package.
What are the different types of application architectures?
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