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Question: In the computer network in the accompanying figure, the same message is to be broadcast from node C to nodes A, E, F, and G. One way to do this is to find the shortest path from C to each of these nodes and send out multiple copies of the same message. A more efficient approach is to send one copy out from C along a spanning tree for the subgraph containing the nodes involved. Use the depth-first search algorithm to find a spanning tree for the subgraph.
We require a data base for a small airport. The data base should track airplanes, pilots, hangars, airplane types, mechanics and airplane owners.
These comprise NOT NULL, CHECK, UNIQUE, REFERENTIAL INTEGRITY, and PRIMARY KEY constraints. Are these constraints which we are talking about easy to implement in Access Database?
Write SQL statements that do the following: Calculate the average salary for all employees. Calculate the maximum salaries for exempt and non-exempt employees.
Answer Yes or No to the following Functional Dependency questions. Base your answers on the data shown in Table X below. There are no further rows in this table. Provide reasoning VERY briefly. Normalize the table by listing the 2NF tables
Modify the XML document in Exercise 2 to include a namespace URL from which the elements of the XML document in Exercise 3 will be associated with. Make any changes to the XML document that are necessary as a result of the namespace URL inclusion.
With specific reference to the company's accounting information system, critically evaluate the type and nature of both the risks and the security threats such a company faces in today's business environment and explain the control procedures and ..
Create an ERD for this video store case. Turn in an ERD with appropriate relationship sentences. You can use drawing tools in MS Word or MS Visio to create your ERD. Make sure your relationship sentences are consistent with your relationship in yo..
Create documentation that explains the process of creating the entity-relationship diagrams in the change request relative to this project.
Whats the difference between a filter and a query
Write a SELECT statement that returns these columns from the Orders table
In class practice: Turn each ER diagram into a database diagram by identify the primary keys and creating foreign keys. Insert new columns or tables as needed. Also, if necessary, specify what must be done to enforce maximum and minimum cardinalit..
Design a relational database so that it is at least in 3NF.Explain typical situations when denormalizing a table is acceptable. Provide one (1) example of denormalizing a database table to justify your response.Explain the significant manner in wh..
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