1.Big Data generally refers to a set of data that displays the characteristics of_____.
A) Volume, Velocity, and Variety
2. Which of the following is NOT a characteristic of Hadoop Distributed File System (HDFS)?
A) Read-once, write-many
3. Which of the following is NOT true about NoSQL?
A) NoSQL does not include support for SQL.
4. Which of the statements is incorrect?
A) Column family database is a NoSQL database model that organizes data into key-value pairs, in which the value component is composed of a set of rows that vary by column.
5. Which of the following is not supported by NewSQL databases?
A) Document-based data stores
6. Select the statement that best defines column-centric storage.
A) Column-centric storage is a physical data storage technique in which data is stored in blocks, which hold data from a single column across many rows.
7. Select the statement that best defines row-centric storage.
A) Row-centric storage is a physical data storage technique in which data is stored in blocks, which hold data from all columns of a given set of rows.
8. MapReduce is the computing framework used to process large data sets across clusters. Which of the following is a valid list of terms of the MapReduce framework?
A) Map, mapper, reduce, and reducer
9. As a document database, MongoDB is schema-less and aggregate aware. What does being schema-less mean?
A) All documents are not required to conform to the same structure, and the structure of documents does not have to be declared ahead of time.
10. Which of the following is NOT a true statement regarding MapReduce features?
A) MapReduce uses a task tracker and several job trackers.