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How big is a physical PDU?

How big is a physical PDU (protocol data unit)? The answer to this question determines the number of simultaneous transmissions for many network architectures. If a signal propagates through copper wire at the rate of 2*10^8 meters per second, then on a carrier running at 10 Mbps the length of each bit pulse is given by: S

Find and discuss the ways a company can use advanced Excel tools

Find and discuss the ways a company can use advanced Excel tools such as MIN and MAX statement, conditional formatting, and additional tools that you have discovered to manage their business finances. Once you have created a formula, the formula can be copied to subsequent cells. When the formula is copied it may change dependin

Case Study using POM

Instructions: Hand in its solution in which you show clearly HOW you got you answers. Hand in also whatever solution POM for Windows can give you. Right a short paragraph to answer the two questions asked using your analysis, and make sure you express the changes in productivity for 2007 as a percentage too. Bob Richards

Personal or Family Budget

In this project, you will enter in the correct Formulas/Functions to complete a family budget that has been started for you. You will also create a pie chart that will represent the expenses for the entire year. To view these instructions while working in Excel, print these instructions or move back and forth between your browse

Link Layer

According to the figure in the attachment, a. Which node, B or D, first realizes a collision has happened? b. If B's packet is addressed to A, does A realize that a collision has happened? Explain! c. What is the jamming signal and who is going to generate it? d. Draw a graph scenario where a collision does happen, yet on

ARQs

Details: Library Research Project Use the Library, the Internet, and other resources to explain ARQs (automatic repeat requests). Discuss the purpose and the different mechanisms (such as Stop-and-wait ARQ) available. Identify and discuss the flow control methods on which they are based? What are the pros and cons of each?

Combination Boxes in MS Excel

I'm trying to find a way to build combo box for several tables. In a nutshell, I have three major categories (W. Loaders, T. Loaders, Excavators) and for each one there is a three entries of data for example: W. Loaders . Model Capacity Cycle Time D25D 4 .21 D30D 5 .22 D56D 7 .20

Create Table Statement

NOTE: You do NOT need to run/execute the script. Create a new table to be housed in the USERS01 tablespace. The table name will be PRECIOUS_METAL_PRICE and it will be used to store a history of the price of various precious metals. New rows are added to the table on a one-every-two-hours ratio. The table needs to have a re

Passing parameters

Give an example of when passing parameters by value as opposed to passing them by reference is a better technique. Now give an example of when passing parameters by reference as opposed to passing them by value is a better technique. For each example explain why you believe that technique is better than the other.

MS Excel

Your mother-in-law heard that you created the budget for the high school reunion picnic and has asked if you could help her to create a monthly household budget. She has created categories for groceries, entertainment, credit cards, mortgage, and utilities. She wants to track her expenses for a couple of months before she create

Data Conversion (8-bits to decimal)

Q1) Using 5 bits to represent each number, write the representation of 7 and -7 in 1's complement, signed magnitude, and 2's complement integers. Q2)Write the 6-bit 2's complement representation of -32. Q3) Convert these decimal numbers to 8-bit 2's complement binary numbers a. 102 b. 64 c. 33 d. -128 e. 127 Q4)If

Floor Plan Site Survey

Http://corptrain.phoenix.edu/axia/it241/ A site survey enables you to do it right the first time. Without a site survey, trial and error is the only way to place access points in locations that provide optimum signal. Conducting a site survey is one of the most critical components of properly designing and installing a wirele

Excel Spreadsheet Expense Reports

Work in Excel, do either of the following: Print this page of instructions or move back and forth between this page and Excel by clicking each application's button on the Windows taskbar 1. Click on this link Expense Report, save it on your computer in your usual work folder, and then open it in Excel. This partially compl

QPSK / Multiplexer

Need help with a QPSK / Multiplexer question. please see attached. thank you. Additional information has been provided for this question: There are 20 sources. Each source transmits at 32kbps. (This means that each source is either sending 32kbps or its sending nothing.) Each source only transmits 20% of the time. (note: i

Redesign report guidelines

Given the guidelines. identify flaws in the design of the Report of Customers that follows. What assumptions about users and tasks did you make in order to assess this design? Redesign this report to correct these flaws. Report of Customers 26-Oct-07 Cust-ID Organization AC-4 A.C. Nielson Co. ADTRA-20799 Adran AL

IT Project Management-spreadsheet to calculate for giving seminar

Create a spreadsheet to calculate your projected total costs, total revenues, and total profits for giving seminar on cost estimating. Below are some of your assumptions: You will charge $600 per person for a two - day class. You estimate that 30 people will register for and attend the class, but you want to change this input.

Drawing an entity relationship diagram

1. Draw the entity relationship diagram for the relationship between EMPLOYEE and JOB. Employee EMP_CODE | EMP_LNAME | JOB_CODE 14 Rudell 2 15 McDade 1 16 Ruellardo 1

Business Rules and Crow's Foot ERD

Use the attachment to complete the problem. 1. Identify each relationship type and write all of the business rules. 2.Create the basic Crow's Foot ERD. Examples here: http://faculty.washington.edu/blabob/sysan_w08/Docs/Data%20Models%20-%20Data%20Modeling.pdf

Constructing a Good Form Design

Speedy Spuds is a fast-food restaurant offering all kinds of potatoes. The manager has a 30-second rule for serving customers. Servers at the counter say they could achieve that rule if the form they must fill out and give to the kitchen crew were simplified. The information from the completed form is keyed into the computer sys

Internet Terminology Confusions/Network

1. Why does the Internet need HTTP, TCP, IP and DNS? Why isn't the Internet Protocol (IP) enough to do the job? Please reply to these specific points of confusion. 2. Another thing that puzzles me is that sometimes when I type a uniform resource locator (URL), I was told that the host named in the URL does not exist. Yet often

Excel 2003, Charts, Formula

I am having a difficult time with stacked column charts - if anyone can assist, I would be greatful. a. Create a stacked column chart that shows the total number of admissions for each region and the contribution of each region within each quarter. Create this chart in its own chart sheet with an appropriate name. b. Crea

Communication recovery plan

Consider a natural or man-made disaster, and discuss how a communications network could be recovered from such a disaster. Refer to communication issues experienced during and after the tsunami in December of 2004 or similar issues experienced in the aftermath of Hurricane Katrina in August of 2005. Provide at least one resource

Data Normalisation

1. In a car garage, how would you describe the relationship between vehicles and service, MOT or repairs. Is it one to many or many to many? 2. Same question for car parts and repairs. 3. How about repairs and accidents. Can one say it is a one to one relationship?

Network Protocols

Why are network protocols needed? How do you decide which protocol is more suitable for a network implementation?

Web Applications

Why do vclidation controls improve the performance of a web application?

Data Warehousing

You have been asked to design a star schema for a large hotel chain. Review the information package given for a hotel chain in Figure 5-6 in the attached file. Use this information package to design the STAR schema. Problem: - Draw the star schema. - List the attributes for each table. - Designate a primary key for ea

Answer in Hex Notation

NOTE: For 5a, adding bits stuffing to the bit pattern below 0 1 1 0 1 1 1 1 1 1 0 0 1 1 1 1 1 0 0 1 1 For 5b, perform byte stuffing for the two bytes below 0 1 1 1 1 1 1 0 (0x 7E) and 0 1 1 1 1 1 0 1 (0x 7D) Answer in Hex notation Problem 5. a. Add framing bits and bit stuffing to the following bit pattern: 0 1 1 0 1