Which of the following options is CORRECT?
A. InfoSphere BigInsights is based on a branched Hadoop distribution, and therefore backwards compatibility is not guaranteed.
B. InfoSphere BigInsights is a distributed file system used as base for Hadoop distributions.
C. InfoSphere BigInsights is based on the non forked core Hadoop distribution, but backwards compatibility with the Apache Hadoop project is not guaranteed, therefore applications written for Hadoop might not run on BigInsights.
D. InfoSphere BigInsights is based on the non forked core Hadoop distribution, and backwards compatibility with the Apache Hadoop project will always be maintained. Therefore, all applications written for Hadoop will run on BigInsights.
正解:D
質問 2:
InfoSphere BigInsights offers the following benefits to your organization, EXCEPT:
A. It complements your existing infrastructure by extending your data collection and analysis capabilities.
B. It cuts costs by providing an efficient compression algorithm based on row level compression using a dictionary to store repetitive patterns.
C. It enables analysis at scale.
D. It integrates data from a variety of structured and unstructured sources.
正解:B
質問 3:
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