Interactive Supply & Demand Activity (Lemonade Stand) (lliu11)

Project description
http://www.coolmath-games.com/lemonade

The above link will take you to an interactive game. This game is designed to show you the roles of supply and demand using the fast-paced business setting of lemonade sales. Please read the instructions and play a round or two of the game. After you are done, write a paper reflecting on your experience (250 word minimum). Things to include: What was your strategy while playing? What factors affected your decisions? How was supply and demand shown through this?

What did you find most helpful and what did you find not helpful or missing from these organizations\’ websites?

During Week 3 you reviewed and reported on professional associations supporting the field of psychology. What did you find most helpful and what did you find not helpful or missing from these organizations\’ websites?
The American Psychological Association (APA)
American Counseling Association (ACA)
American School Counseling Association (ASCA)
Society for Industrial and Organizational Psychology (SIOP)

How are navigation schemes different in print and on the Web? (What does it mean to say of a print design that has a navigation scheme? Does it?)

Project description
Within the Discussion Board area, write 400-600 words that respond to the following questions with your thoughts, ideas, and comments. This will be the foundation for future discussions by your classmates. Be substantive and clear, and use examples to reinforce your ideas:

Your Discussion Board assignment is to discuss several of the differences between print design and Web-page design.

How are navigation schemes different in print and on the Web? (What does it mean to say of a print design that has a navigation scheme? Does it?)
Which, defined, is easier to do: print design or Web design? Why?
What are some of the different typographic strategies available to you in either realm?
How do you use typography differently on the Web than you might in print?
Discuss some of the limitations inherent in both media.
Responses to Other Students: Respond to at least 2 of your fellow classmates with at least a 100-word reply about their Primary Task Response regarding items you found to be compelling and enlightening. To help you with your discussion, please consider the following questions:

What did you learn from your classmate\’s posting?
What additional questions do you have after reading the posting?
What clarification do you need regarding the posting?
What differences or similarities do you see between your posting and other classmates\’ postings?
Instruction files

unit3_db-_infor_for_peer_response_1_and_2.docx(15,31 KiB)
unit_3_db_computer_illustration_i_dmd225-1602b-01.pdf(209,96 KiB)

What is the hexadecimal (hex) to binary equivalent of the following Ethernet address? What is the equivalent of hex to decimal?

DATA LINK PROTOCOL AND COMMUNICATION NETWORKS
Similar to wide-area networks, local-area networks are an example of communication networks interconnecting several devices for information exchange. The LAN design is usually for a single floor or building, but it can also reach to multiple buildings via routers and bridges. The design is shared medium rather than switching nodes. The internal data rates for LANs are greater than for wide-area networks.

SLP 3 reviews sections 12 and 13 of the Data Communication and Networking e-textbook.

SLP 3 Assignment
Submit the answers to the assignment below in a 3- to 4-page Word document.

Exercises 1 and 2 were extracted from Forouzan (2007, p. 465).

What is the hexadecimal (hex) to binary equivalent of the following Ethernet address? What is the equivalent of hex to decimal? Use the http://www.binaryhexconverter.com/ converter for the calculations.

0101101000010001 0101010100011000 1010101000001111
Design a system of three LANs with four bridges. The bridges (B1 to B4) connect the LANs as shown below. Show diagram in Word and use any diagramming tool to demonstrate the design (Forouzan 2007, p.465).
B1 connects LAN 1 and LAN 2.
B2 connects LAN 1 and LAN 3.
B3 connects LAN 2 and LAN 3.
B4 connects LAN 1, LAN 2, and LAN 3.
Can we replace the bridge with a router? Explain the consequences.
Which one has more overhead, a bridge or a router? Explain your answer.
Which one has more overhead, a repeater or a bridge? Explain your answer.
Which one has more overhead, a router or a gateway? Explain your answer.

What is the period of the Moon, according to Kepler\’s law?

Project description
TRANSMISSION MEDIA AND DATA TRANSMISSION
Transmission media is the path between the sender and receiver. Transmission media is classified as 1) guided (such as cable and twisted wire) and 2) unguided (which is usually referred to as wireless transmission).

Additionally, the medium is controlled by the error-detection process (error detection and correction) to ensure transmission accuracy.

Parity check is an approach to error detection. In ASCII transmissions, the value bit is selected so that each 7-bit character is attached a 1 for even or odd parity. The receiving end will check, and if a 1 is inverted to 0, an error is detected. In addition, lost frames and damaged frames can occur when data is sent in frame sequence. Error control techniques include positive acknowledgment, retransmission after time-out, negative acknowledgement, and retransmission. Additionally, as an example of satellite transmission media, Keplers law is reviewed for calculating the period a signal reaches earth for satellite transmissions. The orbit section and assignment were extracted from Forouzan (2007, p. 479).

SLP 2 reviews sections 7 and 9 of the Data Communication and Networking e-textbook.

Orbit

An artificial satellite needs to have an orbitthe path in which it travels around the Earth. The orbit can be equatorial, inclined, or polar. The period of a satellite, the time required for a satellite to make a complete trip around the Earth, is determined by Kepler\’s law, which defines the period as a function of the distance of the satellite from the center of the Earth.

Example 1

What is the period of the Moon, according to Kepler\’s law?

Period:::: C x distance1.5

Here C is a constant approximately equal to 1/100. The period is in seconds and the distance in kilometers.

Solution

The Moon is located approximately 384,000 km above the Earth. The radius of the Earth is 6,378 km. Applying the formula, we get:

Example 2

According to Kepler\’s law, what is the period of a satellite that is located at an orbit approximately 35,786 km above the Earth?

Solution

Applying the formula, we get:

This means that a satellite located at 35,786 km has a period of 24 h (hours), which is the same as the rotation period of the Earth. A satellite like this is said to be stationary to the Earth. The orbit is called a geosynchronous orbit.

SLP 2 Assignment
Look up the altitude of a Globalstar satellite on the Internet. Use Kepler\’s formula to check the accuracy of a given period and altitude for a Globalstar satellite. Use the following exponent calculator to estimate the period.

http://www.rkm.com.au/CALCULATORS/CALCULATOR-powers.html

Submit the assignment answer in a 2- to 3-page Word document (excluding cover page and references) and explain how you arrived at the period using the Keplers formula.

HIGH SPEED WIDE-AREA NETWORKS

Project description
HIGH SPEED WIDE-AREA NETWORKS
The most widely used data communication service is Frame Relay, which was developed as part of the ISDN project. It can be used in private and public network configurations. Frame Relay uses variable size pockets or frames, and the process is simpler than X.25. Data rates of 2 Megabits can be achieved.

According to Forouzan (2007, p. 453), Frame Relay provides permanent virtual circuits and switched virtual circuits. For example, Frame Relay network can be connected to the Internet and internal LANs and WANs through the use of routers. Frame Relay WANs can be used as one link in the global Internet.

SLP 4 reviews sections 17 and 19 of the Data Communication and Networking e-textbook.

SLP 4 Assignment
SLP questions were extracted from Forouzan (2007, p. 465). Use the hex converter http://www.binaryhexconverter.com/ for the following exercises.

Submit the assignment answers in a 2- to 3-page Word document.

The address field of a Frame Relay frame is 1011000000010111. What is the DLCI in decimal? What is the DLCI in binary?
The address field of a Frame Relay frame is 101100000101001. Is this valid?
Find the DLCI value if the first 3 bytes received is 7C 74 El in hexadecimal.
Find the value of the 2-byte address field in hexadecimal if the DLCI is 178. Assume no congestion.
How does Frame Relay differ from X.25?
What is SONET and SONET/SDH? What are the various devices that can interconnect to SONET?