La Q&A Cloudera CCD-470 est étudiée par les experts de Pass4Test qui font tous effort en profitant leurs connaissances professionnelles. La Q&A de Pass4Test est ciblée aux candidats de test IT Certification. Vous voyez peut-être les Q&As similaires dansn les autres site web, mais il n'y a que Pass4Test d'avoir le guide d'étude plus complet. C'est le meilleur choix à s'assurer le succès de test Certification Cloudera CCD-470.
Pass4Test est un fournisseur de formation pour une courte terme, et Pass4Test peut vous assurer le succès de test Cloudera CCD-410. Si malheureusement, vous échouez le test, votre argent sera tout rendu. Vous pouvez télécharger le démo gratuit avant de choisir Pass4Test. Au moment là, vous serez confiant sur Pass4Test.
Choisissez le Pass4Test, choisissez le succès de test Cloudera CCD-470. Bonne chance à vous.
Code d'Examen: CCD-470
Nom d'Examen: Cloudera (Cloudera Certified Developer for Apache Hadoop CDH4 Upgrade Exam (CCDH))
Questions et réponses: 94 Q&As
Code d'Examen: CCD-410
Nom d'Examen: Cloudera (Cloudera Certified Developer for Apache Hadoop (CCDH))
Questions et réponses: 60 Q&As
Un bon choix de l'outil à se former est le point essentiel à passer le test Cloudera CCD-470, et les documentations à propos de rechercher le test Cloudera CCD-470 est toujours une part plus importante pendant la préparation de test Certification. Les Q&As offertes par les experts de Pass4Test sont presque même que les tests réels. Pass4Test est un site web particulièrement en apportant les facilités aux gens qui veulent passer le test Certification.
Le succès n'est pas loin de vous si vous choisissez Pass4Test. Vous allez obtenir le Certificat de Cloudera CCD-410 très tôt. Pass4Test peut vous permettre à réussir 100% le test Cloudera CCD-410, de plus, un an de service en ligne après vendre est aussi gratuit pour vous.
Choisir le Pass4Test peut vous aider à réussir 100% le test Cloudera CCD-410 qui change tout le temps. Pass4Test peut vous offrir les infos plus nouvelles. Dans le site de Pass4Test le servie en ligne est disponible toute la journée. Si vous ne passerez pas le test, votre argent sera tout rendu.
CCD-470 Démo gratuit à télécharger: http://www.pass4test.fr/CCD-470.html
NO.1 What happens in a MapReduce job when you set the number of reducers to zero?
A. No reducer executes, but the mappers generate no output.
B. No reducer executes, and the output of each mapper is written to a separate file in HDFS.
C. No reducer executes, but the outputs of all the mappers are gathered together and written to a
single file in HDFS.
D. Setting the number of reducers to zero is invalid, and an exception is thrown.
Answer: B
Cloudera examen CCD-470 examen certification CCD-470 CCD-470
NO.2 Assuming default settings, which best describes the order of data provided to a reducer’s
reduce
method:
A. The keys given to a reducer aren’t in a predictable order, but the values associated with those
keys always are.
B. Both the keys and values passed to a reducer always appear in sorted order.
C. Neither keys nor values are in any predictable order.
D. The keys given to a reducer are in sorted order but the values associated with each key are in
no predictable order
Answer: D
certification Cloudera certification CCD-470 CCD-470 examen CCD-470 examen
NO.3 Which describes how a client reads a file from HDFS?
A. The client queries the NameNode for the block location(s). The NameNode returns the block
location(s) to the client. The client reads the data directory off the DataNode(s).
B. The client queries all DataNodes in parallel. The DataNode that contains the requested data
responds directly to the client. The client reads the data directly off the DataNode.
C. The client contacts the NameNode for the block location(s). The NameNode then queries the
DataNodes for block locations. The DataNodes respond to the NameNode, and the NameNode
redirects the client to the DataNode that holds the requested data block(s). The client then reads
the data directly off the DataNode.
D. The client contacts the NameNode for the block location(s). The NameNode contacts the
DataNode that holds the requested data block. Data is transferred from the DataNode to the
NameNode, and then from the NameNode to the client.
Answer: C
certification Cloudera CCD-470 examen CCD-470
NO.4 Identify the tool best suited to import a portion of a relational database every day as files into
HDFS, and generate Java classes to interact with that imported data?
A. Oozie
B. Flume
C. Pig
D. Hue
E. Hive
F. Sqoop
G. fuse-dfs
Answer: F
certification Cloudera CCD-470 examen certification CCD-470 CCD-470 examen CCD-470 examen certification CCD-470
NO.5 You are running a job that will process a single InputSplit on a cluster which has no other jobs
currently running. Each node has an equal number of open Map slots. On which node will Hadoop
first attempt to run the Map task?
A. The node with the most memory
B. The node with the lowest system load
C. The node on which this InputSplit is stored
D. The node with the most free local disk space
Answer: C
Cloudera examen CCD-470 examen CCD-470 examen certification CCD-470
NO.6 You want to populate an associative array in order to perform a map-side join. You’ve decided
to
put this information in a text file, place that file into the DistributedCache and read it in your
Mapper before any records are processed.
Indentify which method in the Mapper you should use to implement code for reading the file and
populating the associative array?
A. combine
B. map
C. init
D. configure
Answer: D
certification Cloudera CCD-470 certification CCD-470 CCD-470
NO.7 What data does a Reducer reduce method process?
A. All the data in a single input file.
B. All data produced by a single mapper.
C. All data for a given key, regardless of which mapper(s) produced it.
D. All data for a given value, regardless of which mapper(s) produced it.
Answer: C
certification Cloudera CCD-470 CCD-470 examen certification CCD-470
没有评论:
发表评论