Oxnard Casualty wants to ensure that their e-mail server has 99.98 percent reliability. They will use several independent servers in parallel, each of which is 95 percent reliable. What is the smallest number of independent file servers that will accomplish the goal?
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Oxnard Casualty wants to ensure that their e-mail server has 99.98 percent reliability. They will use several independent servers in parallel, each of which is 95 percent reliable. What is the smallest number of independent file servers that will accomplish the goal?
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- Scenario 3: Falsifying Attendance Jason, a Junior System Administrator with the Management Information Systems Department, clocked in 4 minutes and 27 seconds late for work this morning. While he won’t get fired for it, being late this once means that he will not receive the perfect attendance incentive which he needs to make ends meet, given his daughter’s recent series of hospitalizations. It’s not that Jason didn’t make an effort to be there on time. He actually arrived in the office five minutes early but was unable to clock in immediately because his direct superior, Raffy, asked him for an informal project progress report as soon as he walked in the door. As a Junior System Administrator, Jason has access and the capability to edit the company’s attendance records. He figures that since he was unable to punch in only because of his boss, it wouldn’t hurt to edit the timestamp on his attendance for today. What is the Business Ethics Principles that suit to this case study?…Terex Corporation is a global manufacturer of aerial work platforms and materials processingmachinery. They design, build and support products such as large lifting equipment used inconstruction. The company makes most pieces to order and customizes them to meet customers’unique preferences.Terex maintained a manual system for yard management at their transfer centre in Washingtonthat is always full of lifting equipment, which generated excessive costs for what should have beena relatively simple process of locating customers’ units to prepare them for delivery. A wallboardand sticker system was a low-tech solution for identifying equipment items in the yard at Terex.While inexpensive in itself, the solution cost around six minutes every time an employee had tolocate a unit in the yard. It also required a considerable number of hours to be spent each monthtaking physical inventories. After a successful pilot, the company approved a new solution, replacingstickers, yard maps, and…Terex Corporation is a global manufacturer of aerial work platforms and materials processingmachinery. They design, build and support products such as large lifting equipment used inconstruction. The company makes most pieces to order and customizes them to meet customers’unique preferences.Terex maintained a manual system for yard management at their transfer centre in Washingtonthat is always full of lifting equipment, which generated excessive costs for what should have beena relatively simple process of locating customers’ units to prepare them for delivery. A wallboardand sticker system was a low-tech solution for identifying equipment items in the yard at Terex.While inexpensive in itself, the solution cost around six minutes every time an employee had tolocate a unit in the yard. It also required a considerable number of hours to be spent each monthtaking physical inventories. After a successful pilot, the company approved a new solution, replacingstickers, yard maps, and…
- 31 The two key activities in the ITS Front Desk in the model of e-government value activity System (EVAS) are E-Service Provision, and customer relationship management (CRM). Select one: a. False b. TrueHow does system management help in minimizing downtime and enhancing system reliability?The sales manager of STC Telecommunication Company, conducts interviews of the sales representatives. During the interview, these questions were asked from the sales representatives which are related to the performance of their job: the percentage of the time spent in making presentations to new potential customers, telephone conversation with current customers, time spent working on the computer, and engaging in on- the job activities. What potential sources of error might be associated with the manager’s line of questioning specifically on the different tasks performed by the sales representatives?
- Ruth is reviewing her organization’s business continuity and disaster recovery plans. In it, she comes across the following statement: “In the event that the payroll system fails, the IT team must restore access within 48 hours to avoid unacceptable levels of damage to the business.” What type of statement is this?Calculate: a. Expected value of perfect information b. Minimax regret valueA production line has three machines A, B, and C, with reliabilities of 90, 95, and 94, respectively. The machines are arranged so that if one breaks down, the others must shut down. Engineers are weighing two alternative designs for increasing the line's reliability. Plan 1 involves adding an identical backup line, and plan 2 involves providing a backup for each machine. In either case, three machines (A. B. and C) would be used with reliabilities equal to the original three. a. Compute overall system reliability under Plan 1. (Round your intermediate calculations and final answer to 4 decimal places.) Answer is complete but not entirely correct. Reliability 0.9859 b. Compute overall system reliability under Plan 2 (Round your intermediate calculations and final answer to 4 decimal places.)
- 4. Consider a system with the following specifications: Calls per hour = 8; Average Holding time per Call 1.5 minutes; Number of users 3; Number of trunked Channels = 5. Determine: i) the total traffic offered in the system; ii) the blocking probability, iii) the delay probability; iv) the fraction of all calls that will be delayed for more than 1min minute; v) the average delay of all calls. What do you observe?Your current LIS system will no longer be supported by the company, and you have to select a new system. In order to choose the best system for your laboratory you need to answer the following questions. Who should be on the committee as to which system to pick. How far in advance should you start this process.A floor cleaning robot contains 4 modules that are critical to its operation. The modules and their individual reliabilities are listed below. Movement module 0.98 Data Storage Module 0.999 Learning Module 0.99 Vision Module 0.94 What is the probability that the system will be up and running? Suppose this number is too low and it is desired to improve the reliability through redundant elements. What would be the new reliability from each one of these changes? a. back up the Vision module with an identical module. b. back up the movement module with an identical module, but not the vision module.
