1. What is Cassandra, and what is the history of the development of Cassandra to its current state? 2. As illustrated in Figure 12-33, what is column family database storage, and how are column family...

1. What is Cassandra, and what is the history of the development of Cassandra to its current state?

2. As illustrated in Figure 12-33, what is column family database storage, and how are column family database storage systems organized? How do structured storage systems compare to RDBMS systems?

3. Explain Map Reduce processing.

4. What is Hardtop, and what is the history of the development of Hardtop to its current state? What are Base and Pig?

Figure 12-33