(Chapter 6) Data Communications: Delivering Information

4052 words - 17 pages

(Chapter 6) Data Communications: Delivering Information
What three things must be present for communication to occur?
* Transmission media
* Data transmission
* Cooperation

Define bandwidth.
* Bandwidth: Amount of data that can be transferred from one point to another in a certain time period, usually one second expressed as bits per sec.

Define attenuation.
* Attenuation: Loss of power in a signal as it travels from the sending device to the receiving device

What is a protocol and why is it important in electronic communications?
* Protocol: Rules that govern data communication, including error detection, message length, and transmission speed
* ...view middle of the document...

* Advantage
* More responsive to users
* Disadvantages
* Lack of coordination
* High costs
* Duplication of efforts
* Distributed: Centralized control and decentralized operations. Processing power is distributed among several locations.
* Advantages
* Accessing unused processing power is possible
* Computer power can be added or removed
* Distance and location aren’t limiting
* More compatible with organizational growth
* Fault tolerance
* Resources can be shared to reduce costs
* Reliability is improved
* More responsive to user needs
* Disadvantages
* Dependence on communication technology
* Incompatibility between equipment
* More challenging network management
If provided an example, be able to determine if the network is an example of a WAN, MAN, or LAN.
* Local Area Network (LAN): Connects workstations and peripheral devices that are in close proximity.
* Used to share resources, such as peripherals, files, and software. They are also used to integrate services, such as e-mail and file sharing.
* Data transfer speed varies from 100 Mbps to 10 Gbps.
* Ethernet is the main type of LAN today
* Wide Area Network (WAN): Can span several cities, states, or even countries, and is usually owned by several different parties.
* Can be useful for a company headquarter in Washington D.C., with 30 branch offices in 30 states.
* Use many different communication media
* Major carriers lease lines to companies
* Data transfer speed varies from 28.8 Kbps to 155 Mbps.
* Metropolitan Area Network (MAN): Designed to handle data communication for multiple organizations in a city and sometimes nearby cities as well.
* Data transfer speed varies from 34 Mbps to 155 Mbps.

Distinguish the difference between a PAN and a BAN.
* PANs – Personal Area Networks,
* WPANs – Wireless Personal Area Networks
* For connecting devices in a person’s workspace
* Bluetooth, ZigBee, WiFi
* BANs – Body Area Networks
* WBANs or Body Sensor Network (BSN)
* Wearable or implanted devices
* Security, power, and bandwidth are major issues
* Protocols still in early stage of development

If provided an example, be able to distinguish if the network topology is a star, ring, bus, hierarchy, or mesh network.
* Star Topology: Central computer (host computer, often a server) and a series of nodes (typically, workstations or peripheral devices.)

* The host computer supplies the main processing power.
* Advantages
* Cable layouts are easy to modify
* Centralized control makes detecting problems easier
* Nodes can be added to the network easily
* Better for handling heavy, short bursts of traffic
* Disadvantages
* Single point of potential failure
* Increased cost due to many cables
* Ring Topology: No host computer is required because each computer manages its own...

Other assignments on (Chapter 6) Data Communications: Delivering Information

Project Essay

999 words - 4 pages ). | | |Individuals must not send, forward, receive or store confidential or sensitive [AGENCY] information | | |utilizing non-[AGENCY] accredited mobile devices. Examples of mobile devices include, but are not | | |limited to, Personal Data Assistants, two-way pagers and cellular telephones. | |Disciplinary Actions |Violation of

Cmgt/554 Week 3 Individual Essay

2557 words - 11 pages Hospital intranet Web site it shows seven separate network diagrams. In these seven diagrams there are a Top View, logical, administrative, radiology, and radiology information system data center, information technology data center, and includes the ward floors, the operating room and the intensive care unit. In each section there is a complete detailed description of the network diagrams. Starting with the top view diagram representing the

Business Marketing

1623 words - 7 pages they must not only be able to sell and market their product or service but also their company. Information: the production, packaging and distribution of information are some of the world’s major industries. Ideas: Charles Revson of Revlon said ‘in the factory, we make cosmetics, in the store we sell hope’. This emphasizes the fact of how products and services are just mediums for delivering an idea or benefit. Who Market? A

Sfac 5

3680 words - 15 pages Business Case for Cloud Collaboration Case Studies and Testimonials Some organizations prefer to host their IT systems in their own data center. But on-premises communications solutions are not for everyone, and many organizations are shifting to a secure hosted collaboration solution in order to: • Increase agility to quickly scale up or down • Extend collaboration applications to anyone, anywhere • Free up IT resources to focus on core

Eco 316 Entire Course

335 words - 2 pages Allocation.pdf ECO-316 Week 1 Chapter 6 Determining Market Interest Rates.pdf ECO-316 Week 1 DQ 1.doc ECO-316 Week 1 DQ 2.doc ECO-316 Week 2 Chapter 10 Information and Financial Market Efficiency.pdf ECO-316 Week 2 Chapter 11 Reducing Transactions Costs and Information Costs.pdf ECO-316 Week 2 Chapter 12 What Financial Institutions Do.pdf ECO-316 Week 2 Chapter 7 Risk Structure and Term Structure of Interest Rates.pdf ECO

Patton Fuller Networking Project

1602 words - 7 pages hospital. PFCH is employing a CAT 6 cable infrastructure for these administrative areas. The clinical areas use the 1000Base-F standard, which is also a 1000 Mbps specification for Ethernet communications over optical fibers. PFCH is currently using single mode optical fiber cable infrastructure for its clinical areas. The administrative areas are joined to the clinical areas via a network bridge. The administration network is composed

Data Information And Information System

2370 words - 10 pages organizations implement a data warehouse as part of a strategic IT initiative that involves an ERP system. Implementing a successful data warehouse involves installing a process for gathering data on an ongoing basis, organizing it into meaningful information, and delivering it for evaluation. The data warehousing process has the ess

Performance Lawn Equipment Report

4360 words - 18 pages 5 China 5 C) Complaint Submissions Analysis 6 f) On-time delivery 6 g) Defects after delivery 7 h) Response time 7 Chapter 3 | Part II: Shipping Cost Analysis 7 Chapter 3 | Part III: Customer Survey Overview 8 Chapter 4: Detailed Statistical Information 12 a) Dealer, End-User Mean and Standard Deviation Analysis 12 Dealer Satisfaction Trends 12 End-User Satisfaction Trends 14 b) Descriptive Statistical Summary 16 c


1179 words - 5 pages deals on knowledge requirements, Users Needs, Existing Applications,Development Tools and Techniques, Technical Literature, Results of users survey, expertadvice, software, requirements, hardware requirements. It deals on the perceptionstowards the existing manual system and the proposed Computerized Library System as toaccuracy, user friendliness, security and speed of data and information.    KnowledgeRequirements    Users’ Needs


6172 words - 25 pages chapter 1 accounting information systems: An overview Suggested Answers to Discussion Questions 1.1 The value of information is the difference between the benefits realized from using that information and the costs of producing it. Would you, or any organization, ever produce information if its expected costs exceeded its benefits? If so, provide some examples. If not, why not? Most organizations produce information only if its value

Wow Amazing Information

8687 words - 35 pages hour, the marketing VP had a revolt on his hands. Now, with a constant news cycle that is aided and abetted by online communications, a scenario like this one could be prompted by information that gets into the hands of, for example, a blogger, as we’ll see later on in this chapter. Now obviously, the aforementioned VP didn’t intend for his assistant to be a part of his constituency, nor did he stop to think about her reaction to the change

Similar Documents

Document Essay

315 words - 2 pages ensure confidentiality by implementing__________? 9) Encrypting e-mail communications is needed if you are sending confidential information within an e-mail message through the public Internet? 10) Using security policies, standards, procedures, and guidelines helps organizations decrease risks and threats? 11) A data classification standard is usually part of which policy definition? 12) The SSCP professional

Management Sciences Essay

2260 words - 10 pages Chapter 1 Data Communications Introduction 1 Chapter Objectives: Defined data communications Introduced data communications needs Communications model Overview of networks Introduce Internet 2 Data, Data Communication Data is an entity that convey some meaning based on some mutually agreed upon rules/conventions between a sender and a receiver. Data Communication deals with the transmission of signals in a reliable and efficient manner 3

Final Notes Essay

2361 words - 10 pages management. Researchers increasingly are being asked to play a more proactive, consulting role in translating data and information into insights and recommendations. They’re also considering ways to present research findings in as understandable and compelling a fashion as possible. 6.. The managers who commissioned the research need to weigh the evidence. Contrast the difference between quantitative and qualitative market research


2756 words - 12 pages monitor the marketing environment to continually assess market potential and forecast demand. Chapter 3 looks at marketing information and research, market demand, and the marketing environment. * Connecting with customers. The firm must determine how to best create value for its chosen target markets and develop strong, profitable, long– term relationships with customers, as discussed in Chapter 4. Chapters 5 and 6 explore the analysis of