In a traditional Hadoop stack, which of the following components provides data warehouse infrastructure and allows SQL developers and business analysts to leverage their existing SQL skills?
A. Zookeeper.
B. Hive.
C. Avro.
D. Text analytics.
正解:B
質問 2:
Which of the following options is CORRECT regarding InfoSphere Data Explorer?s annotators?
A. InfoSphere Data Explorer?s annotators is an add-on feature capable of handling of a variety of
data formats and types, including structured,
semi-structured and unstructured, as well as the special demands of rich media and transactional
data.
B. InfoSphere Data Explorer?s annotators allow users to save results in a private/public folder for
later review or sharing.
C. InfoSphere Data Explorer?s annotators allow users to create groups of search results.
D. InfoSphere Data Explorer?s annotators allow users to interact with search results by providing
feedback about the result's value, and by
adding useful information and communication with other users.
正解:D
質問 3:
Which of the following connectivity modules is provided by InfoSphere Data Explorer?
A. Navigation Module
B. Discovery Module
C. Federation Module
D. Language Module
正解:C
質問 4:
Which of the following options best describes the proper usage of MapReduce jobs in Hadoop environments?
A. MapReduce jobs are used to execute sequential search outside the Hadoop environment using a built-in UDF to access information stored in non-relational databases.
B. MapReduce jobs are used to process small amounts of data in-parallel on expensive hardware, without fault-tolerance.
C. MapReduce jobs are used to process structured data in sequence, with fault-tolerance.
D. MapReduce jobs are used to process vast amounts of data in-parallel on large clusters of commodity hardware in a reliable, fault-tolerant manner.
正解:D



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