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Exercise
Create a set of use cases for the following system: A Video Store (AVS) runs a series of fairly standard video stores. Before a video can be put on the shelf, it must be catalogued and entered into the video database. Every customer must have a valid AVS customer card in order to rent a video. Customers rent videos for three days at a time. Every time a customer rents a video, the system must ensure that this customer does not have any overdue videos. If so, the overdue videos must be returned and an overdue fee paid before the customer can rent more videos. Likewise, if the customer has returned overdue videos, but has not paid the overdue fee, the fee must be paid before new videos can be rented. Every morning, the store manager prints a report that lists overdue videos; if a video is two or more days overdue, the manager calls the customer to remind him or her to return the video. If a video is returned in damaged condition, the manager removes it from the video database and may sometimes charge the customer.
assume a direct access file consists of sectors with 1024 byte capacity. Suppose also that records are 32 bytes long. On which logical sector do the following logical records lie? What is the relative record number in the sector?
What are the different kinds of Window controls? What is the purpose of each.
When there is a network outage, how do companies find out the network boundary.
This is an insurance agency that has over 100,000 customers nationwide. They now have about 5,000 employees and 2,000 of them are agents in the field with their own offices. This agency primarily sells life, auto and home policies.
Design the interfaces of at least two components that might be used in a system in an emergency control room vehicle discovery component that, given a post code (zip code) and an incident type, finds the neares.
State some of the kinds of the digital and logical evidence, and special content data investigators may require to gather during an actual cyber-terrorism case.
calculate yield to maturity ytm and bond prices. a continuous compounding convention for ytm calculations should be
Why do people confuse the World Wide Web with the Internet. What clarification could be offered to clear up that confusion.
discussing the role of computer programming in the IT industry
How can be secure mail infrastructure using identities.What may be a new approach to secure mail infrastructure?
What is the largest positive number one can repent in an 8-bit 2's complement code ? write your result in binary and decimal.
question1. date consists of a month day and year. frequently we represent each of these items as integers. such as july
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