Answer the fundamental Data Base / DBMS questions ( computer science)

Question 1 How can a company with a large database system use Cassandra to avoid data loss in the event of a power failure at their main data center? Question 2 How do the terms elasticity, latency, and durability relate to a complex database system? Question 3 Contrast categorical attributes with quantitative attributes and illustrate your answer with an example of how and why a grocery store chain would use each in a data mining process. Question 4 What is the constraint on a subclass in a specialization hierarchy? Question 5 Which is not a data model on which you could base a database management system? Select one: a. Hierarchical b. Centralized c. Network d. Relational Question 6 What are the three type of data category that is feeding into a data warehouse? Question 7 What is a functional requirement? Provide an example. Question 8 Why is the data in a data warehouse less volatile than that in a traditional database? Question 9 What is the relationship between Hadoop and Map Reduce, and what does Map Reduce do? Question 10 Three goals of database security are integrity, availability, and confidentiality. Apply these goals to your expectation of how a bank maintains your personal checking account records. Question 11 In defining the taxonomy of decision making, decisions can be classified to what three types? Question 12 What is data cleansing? Provide at least two examples based on voting in a municipal election.