Q. What is the primary function of the MapReduce scheduler?

View solution

Q. What are the two crucial aspects that enable parallel execution in database systems?

View solution

Q. What does the optimizer in a parallel DBMS translate SQL commands into?

View solution

Q. In a parallel DBMS, when does the filter subquery in a SQL command get performed in parallel?

View solution

Q. What is the final step required in a parallel DBMS after performing a hash join and calculating preliminary aggregate functions?

View solution

Q. Why is there a need for interfaces between MapReduce systems and DBMSs?

View solution

Q. What is the result of integrating MapReduce and DBMSs for complex analytical problems?

View solution

Q. What is the primary purpose of the MapReduce system in the context of interfacing with DBMSs?

View solution

Q. What is the primary focus of machine learning?

View solution

Q. Which type of learning is often used in knowledge discovery, data mining, and machine learning?

View solution

Q. What are the two main goals of the learning from data process?

View solution

Q. In supervised learning, how are the classes determined?

View solution

Q. What is one of the basic tasks in supervised learning?

View solution

Q. What distinguishes unsupervised learning from supervised learning?

View solution

Q. What is a common goal of unsupervised learning?

View solution

Q. Why is machine learning well-suited for handling Big Data?

View solution

Q. What types of tasks are strengths of machine learning algorithms in the context of Big Data?

View solution

Q. What is the primary purpose of decision tree learning?

View solution

Q. How are decision tree algorithms like ID3 and C4.5 used in the learning process?

View solution

Q. What measures are used to determine the selection of attributes for splitting in decision trees?

View solution