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business communication essentials
Business Data Communications And Networking 13th Edition Jerry FitzGerald, Alan Dennis, Alexandra Durcikova - Solutions
What is quantizing error?
What is the termused to describe the placing of two or more signals on a single circuit?
What is the purpose of multiplexing?
How does DSL (digital subscriber line) work?
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)?
What is the function of inverse multiplexing (IMUX)?
If you were buying a multiplexer, would you choose TDM or FDM?Why?
Some experts argue that modems may soon become obsolete. Do you agree?Why or why not?
What is the maximum capacity of an analog circuit with a bandwidth of 4,000 Hz using QAM?
What is the maximum data rate of an analog circuit with a 10 MHz bandwidth using 64-QAM and V.44?
What is the capacity of a digital circuit with a symbol rate of 10 MHz using Manchester encoding?
What is the symbol rate of a digital circuit providing 100 Mbps if it uses bipolar NRz signaling?
What is VoIP?
What does the data link layer do?
What is media access control, and why is it important?
Under what conditions is media access control unimportant?
Compare and contrast roll-call polling, hub polling (or token passing), and contention.
Which is better, controlled access or contention?Explain.
Define two fundamental types of errors.
Errors normally appear in _____, which is when more than 1 data bit is changed by the error-causing condition.
Is there any difference in the error rates of lower-speed lines and higher-speed lines?
Briefly define noise.
Describe four types of noise.Which is likely to pose the greatest problem to network managers?
How do amplifiers differ from repeaters?
What are the three ways of reducing errors and the types of noise they affect?
Describe three approaches to detecting errors, including how they work, the probability of detecting an error, and any other benefits or limitations.
Briefly describe how even parity and odd parity work.
Briefly describe how checksum works.
How does CRC work?
How does forward error-correction work? How is it different from other error-correction methods?
Under what circumstances is forward error correction desirable?
Briefly describe how continuous ARQ works.
Which is the simplest (least sophisticated) protocol described in this chapter?
Describe the frame layouts for SDLC, Ethernet, and PPP.
What is transmission efficiency?
How do information bits differ from overhead bits?
Are stop bits necessary in asynchronous transmission?Explain by using a diagram.
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
Under what conditions does a data link layer protocol need an address?
Are large frame sizes better than small frame sizes?Explain.
What media access control technique does your class use?
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 does the transport layer do?
What does the network layer do?
What are the parts of TCP/IP and what do they do?Who is the primary user of TCP/IP?
Compare andcontrast the three types of addresses used in a network.
How is TCP different fromUDP?
How does TCP establish a session?
What is a subnet and why do networks need them?
What is a subnet mask?
How does dynamic addressing work?
What benefits and problems does dynamic addressing provide?
What is address resolution?
How does TCP/IP perform address resolution from URLs into network layer addresses?
How does TCP/IP perform address resolution from IP addresses into data link layer addresses?
What is routing?
Howdoes decentralized routing differ fromcentralized routing?
What are the differences between connectionless and connection-oriented messaging?
What is QoS routing and why is it useful?
Compare and contrast unicast, broadcast, and multicast messages.
Explain how multicasting works.
Explain how the client computer in Figure 5-16(128.192.98.xx) would obtain the data link layer address of its subnet router.
Why does HTTP use TCP andDNS useUDP?
How does static routing differ from dynamic routing?When would you use static routing?When would you use dynamic routing?
What type of routing does a TCP/IP client use? What type of routing does a TCP/IP gateway use? Explain.
What is the transmission efficiency of a 10-byte Web request sent using HTTP, TCP/IP, and Ethernet?Assume that the HTTP packet has 100 bytes in addition to the 10-byte URL. Hint: Remember from Chapter 4 that efficiency = user data/total transmission size.
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. Hint: Remember from Chapter 4 that efficiency = user data/total transmission size.
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 themaximum packet size is 1,200 bytes. Hint: Remember from Chapter 4 that efficiency =
Describe the anatomy of a router. How does a router differ from a computer?
What are the keys to designing a successful data communications network?
How does the traditional approach to network design differ from the building-block approach?
Describe the three major steps in current network design.
What is the most important principle in designing networks?
Why is it important to analyze needs in terms of both application systems and users?
Describe the key parts of the technology design step.
Howcan a network design tool help in network design?
Onwhat should the design plan be based?
What is an RFP, and why do companies use them?
What are the key parts of an RFP?
What are somemajor problems that can cause network designs to fail?
What is a network baseline, and when is it established?
What issues are important to consider in explaining a network design to senior management?
What is the turnpike effect, and why is it important in network design?
What are the seven network architecture components?
What is the difference between a building backbone and a campus backbone, and what are the implications for the design of each?
What are typical speeds for the LAN, building backbone, and campus backbone?Why?
What is a bottleneck, and why do network managers care about them?
Is it important to have the fastest wireless LAN technology in your apartment? What about in the library of your school? Explain.
Why do you think some organizations were slow to adopt a building-block approach to network design?
For what types of networks are network design tools most important?Why?
Define local area network.
Describe at least three types of servers.
Describe the basic components of a wired LAN.
Describe the basic components of a wireless LAN.
What types of cables are commonly used in wired LANs?
Compare and contrast category 5 UTP, category 5e UTP, and category 5 STP.
What is a cable plan and why would you want one?
What does a NOS do? What are the major software parts of a NOS?
How does wired Ethernetwork?
How does a logical topology differ from a physical topology?
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