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試験科目:Cloudera 「Cloudera Certified Administrator for Apache Hadoop」




NO.1 You are running a Hadoop cluster with all monitoring facilities properly configured. Which scenario will
go undetected.?
A. Map or reduce tasks that are stuck in an infinite loop.
B. HDFS is almost full.
C. The NameNode goes down.
D. A DataNode is disconnectedfrom the cluster.
E. MapReduce jobs that are causing excessive memory swaps.
Answer: C

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NO.2 Which of the following scenarios makes HDFS unavailable?
A. JobTracker failure
B. TaskTracker failure
C. DataNode failure
D. NameNode failure
E. Secondary NameNode failure
Answer: A

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NO.3 Which of the following describe the functions of a scheduling algorithm? (Choose 4)
A. Reduce the total amount of computation necessary to complete a job.
B. Allow short Jobs to complete even when large, long jobs (consuming a lot of resources) arerunning.
C. Support the implementation of service-level agreements for multiple cluster users.
D. Allow multiple users to share clustersina predictable, policy-guided manner.
E. Run jobs at periodic times of the day.
F. Reduce job latencies in an environment withmultiple jobs of different sizes.
Answer: A,D,E,F

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投稿日: 2012/11/15 2:32:53  |  カテゴリー: 未分類  |  タグ: ClouderaCCA-332