Q. Which is the most popular NoSQL database for scalable big data store with Hadoop?

View solution

Q. The ___________ can also be used to distribute both jars and native libraries for use in the map and/or reduce tasks.

View solution

Q. HBase provides ___________ like capabilities on top of Hadoop and HDFS.

View solution

Q. __________ refers to incremental costs with no major impact on solution design, performance and complexity.

View solution

Q. Streaming supports streaming command options as well as _________ command options.

View solution

Q. Which of the following Hadoop streaming command option parameter is required?

View solution

Q. To set an environment variable in a streaming command use ____________

View solution

Q. The ________ option allows you to copy jars locally to the current working directory of tasks and automatically unjar the files.

View solution

Q. ______________ class allows the Map/Reduce framework to partition the map outputs based on certain key fields, not the whole keys.

View solution

Q. Which of the following class provides a subset of features provided by the Unix/GNU Sort?

View solution

Q. Which of the following class is provided by the Aggregate package?

View solution

Q. Hadoop has a library class, org.apache.hadoop.mapred.lib.FieldSelectionMapReduce, that effectively allows you to process text data like the unix ______ utility.

View solution

Q. ___________ generates keys of type LongWritable and values of type Text.

View solution

Q. In _____________ the default job is similar, but not identical, to the Java equivalent.

View solution

Q. An input _________ is a chunk of the input that is processed by a single map.

View solution

Q. An ___________ is responsible for creating the input splits, and dividing them into records.

View solution

Q. ______________ is another implementation of the MapRunnable interface that runs mappers concurrently in a configurable number of threads.

View solution

Q. Which of the following is the only way of running mappers?

View solution

Q. _________ is the base class for all implementations of InputFormat that use files as their data source.

View solution

Q. Which of the following method add a path or paths to the list of inputs?

View solution