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Please do keep the questions/instructions and points for each question in this Word document with your answers. Answer the questions clearly, explain your answer, and show your work. Answers, even if right but without an explanation, will get no credit. The explanations need to be brief, but complete, logical, and to the point. Do not quote anybody else, use your own words. Answer in the space provided or add lines if really needed. Each question is worth 10 points! Q1: In terms of performance gains, what role does an I/O controller located inside the peripheral device perform? (50 to 100 words should be sufficient to answer this question) Q2: Consider the steps required to write a block of data from a disk to memory. Outline the major sequence of I/O events that must occur to make this possible. (There are three major steps) Q3: What is the capacity of a hard drive (in GB) consisting of 120,000 tracks, 4,000 sectors, and 4 surfaces? Assume each block has 512 bytes. Q4: Explain what is meant by wear-leveling in Flash drives?
Q5: There are two levels of scheduling. One level of scheduling determines which jobs will be admitted to the system and in what order. What does the other level of scheduling do? Q6: Why is it so important that access to system services by application program be controlled through APIs? Q7: How many 512 byte blocks are required to store a 1.6MB file? Q8: Describe the Bitmap method for maintaining free space on a disk. Q9: In servicing read and write requests for a disk, how does First-come, first-served (FCFS) scheduling work? And, why is FCFS inefficient? Q10: In a preemptive system, what is a 'time-out'?
Illustrate all the data in each of four tables. Don't show foreign key columns. Write down the names and e-mail addresses for all customers who have had stove repair which cost more than $50.
Find out how many times a customer generated an invoice. List the names of the customers and how many times a customer generated an invoice.
CIS253 Virtualization Fundamentals- Describe Virtual machines and how to create one. List and explain conditions under which VMs and vApps should be migrated to another host. List in order of priority...if possible.
Subsequently, the evaluation of the project is based on different types of virtualization mechanisms compared to standard physical server deployment.
Knowing the customers for targeted advertising. The board would like to know which type of customers (age or gender) are more interested in which types of cars (type)
what is lan based database management system ltbrgtgive an example of lan based database management system with a
SQL Code
Determine what system privileges the DVONLINE role has. Determine what system privileges your account has been granted
Be sure to THINK through the logic, then develop the IPO Chart using a Microsoft Word table. Develop the flow chart using Microsoft VISIO. Then write the pseudocode in Microsoft Word
A narrative description of the field chosen for the application being created. This should also include a description of the problem and addressing the weaknesses to be solved by the database.
Premiere Products is a distributor of appliances, house wares, and sporting goods. Since its inception, the company has used spreadsheet software to maintain customer, order, inventory, and sales representative data. Redundancy and difficulty in..
Course: data mining. Require a 7 page essay on subjects: Warehouse Architectures: the paper requires to contain information about centralized, federated, and tiered data warehouse.
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