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Q1) Express given five loosely described problems carefully in { Instance, Question } form as utilized in "Computers and Intractability". For each problem discuss the best time and space complexity you are aware of for solving the problem (from scratch) along with a few words naming or describing the method.
(i) Determine the median of n = 2 k + 1 integers.
(ii) Determine the 2 largest and 2 smallest of n integers.
(iii) Determine that a graph is not a forest (not acyclic).
(iv) Determine that a list of n numbers has no duplicates.
(v) Determine that maximum number of edge disjoint paths between vertices v and w in a graph is less than k.
Energy in the home, personal energy use and home energy efficiency and Efficient use of ‘waste' heat and renewable heat sources
Knowledge and Data Warehousing
Your task is to develop a database to support this activity.Here is what you need to be able to provide Custom Auto Body in order to land your first consulting contract:
It is not uncommon to have to access the data which reside in different tables, especially when formulating a report.
Create use case to describe a typical sales process. Then make a sequence diagram for use case.
Data Modeling and Normalization
At this point in the design process, you would have a detailed physical schema created for a database. How would you approach converting your schema into a database, complete with sample data? Explain your approach in two to three paragraphs.
Create ERD containing Order and Customer entity types connected by 1-M relationship from Customer to Order. Select suiatble relationship name using your common knowledge of intersection.
In talking about database security, some aspects to regard as are Data Integrity, Confidentiality, and Malicious Activity. Illustrate how does database security relate to data integrity?
Database Questions: What do you mean by data base scheme? What do you mean by cardinality ratio? What do you mean by degree of relation?
Assignment 5: Logical Design, Part II, Explain the problems associated with data redundancy as it pertains to effectively using information for reporting and analysis.
Did the corresponding lines for invoices 1001 and 1008 in table LINE get deleted automatically? Can you explain why?
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