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Q1. Explain the distinction between total and partial constraints.
Q2. Explain the difference between a weak and a strong entity set.
Q3. Explain the distinction between condition-defined and user-defined constraints. Which of these constraints can the system check automatically? Explain your answer
Q4. Design a database for an airline. The database must keep track of customers and their reservations, flights and their status, seat assignments on individual flights, and the schedule and routing of future flights. (Your design should include an E-R diagram, a set of relational schemas, and a list of constraints, including primary-key and foreign-key constraints.)
There are some blue and green beads in a container. If 150 more blue beads are added into the container, the percentage of green beads will decrease from 45% to 20%. How many blue beads are there in the container?
Give a detail explanation of what VLANs are.
Dr. Jones has asked you to develop a monthly Claim Status Summary report. He wishes you to write the insurance company number, patient number and name.
What is the maximum frequency the counter can operate reliably?
Perform the Hosmer-Lemeshow test using 10 groups. State hypotheses, test statistic, p-value, and conclusions. Also, examine the Pearson residuals from the groupings and indicate whether they show any particular pattern.
A random string of 100,000 characters is written down, where each character is independently, equally likely to be any of the upper-case letters A through Z in English.
Assume that in your first week on a new job you are asked to use a type of business software that you have never used before. What kind of user training should your company provide to you before you start
1) Privacy laws are in a near constant state of flux. Conduct research to identify the current state of privacy law. Has any major legislation recently been proposed or approved? What are the implications for firms operating in effected industries? W..
Write a program that will calculate the total due for a restaurant bill. The program will ask the user how much was the meal charge. The program will then compute the tip amount and the tax amount and display the total.
Also assume that Name and Date Taken are required. Use Name as the primary key. Set the default value of Description to ‘(None)'.
Digital audio transducer samples real sound at the rate of 40 kHz and assigns 8 bits to each sample. Determine the size of one minute mono audio file?
How do you think an entry level manager has to adjust to be able to grow into an upper level manager
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