CCA-500学習教材、Cloudera Certified Administrator for Apache Hadoop (CCAH)




試験科目:Cloudera Certified Administrator for Apache Hadoop (CCAH)
問題と解答:全60問 CCA-500 日本語認定

>> CCA-500 日本語認定


NO.1 Your company stores user profile records in an OLTP databases. You want to join these records
with web server logs you have already ingested into the Hadoop file system. What is the best way to
obtain and ingest these user records?
A. Ingest using the HDFS put command
B. Ingest with sqoop import
C. Ingest using Hive's IQAD DATA command
D. Ingest with Pig's LOAD command
E. Ingest with Hadoop streaming
Answer: B


NO.2 You are working on a project where you need to chain together MapReduce, Pig jobs. You also
need the ability to use forks, decision points, and path joins. Which ecosystem project should you use
to perform these actions?
A. ZooKeeper
C. Oozie
D. HBase
E. Sqoop
Answer: C

CCA-500問題   CCA-500受験対策解説集   

NO.3 During the execution of a MapReduce v2 (MRv2) job on YARN, where does the Mapper place
the intermediate data of each Map Task?
A. The Mapper transfers the intermediate data immediately to the reducers as it is generated by the
Map Task
B. The Mapper stores the intermediate data on the underlying filesystem of the local disk in the
directories yarn.nodemanager.locak-DIFS
C. The Mapper stores the intermediate data in HDFS on the node where the Map tasks ran in the
HDFS /usercache/&(user)/apache/application_&(appid) directory for the user who ran the job
D. YARN holds the intermediate data in the NodeManager's memory (a container) until it is
transferred to the Reducer
E. The Mapper stores the intermediate data on the node running the Job's ApplicationMaster so that
it is available to YARN ShuffleService before the data is presented to the Reducer
Answer: B

CCA-500勉強方法   CCA-500勉強   

NO.4 Which scheduler would you deploy to ensure that your cluster allows short jobs to finish within
a reasonable time without starting long-running jobs?
A. Capacity Scheduler
B. FIFO Scheduler
C. Complexity Fair Scheduler (CFS)
D. Fair Scheduler
Answer: D

CCA-500試験資料   CCA-500短期   

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