Le test Cloudera CCA-470 peut bien examnier les connaissances et techniques professionnelles. Pass4Test est votre raccourci amené au succès de test Cloudera CCA-470. Chez Pass4Test, vous n'avez pas besoin de dépenser trop de temps et d'argent juste pour préparer le test Cloudera CCA-470. Travaillez avec l'outil formation de Pass4Test visé au test, il ne vous demande que 20 heures à préparer.
La Q&A Cloudera CCA-470 de Pass4Test est liée bien avec le test réel de Cloudera CCA-470. La mise à jour gratuite est pour vous après vendre. Nous avons la capacité à vous assurer le succès de test Cloudera CCA-470 100%. Si malheureusement vous échouerez le test, votre argent sera tout rendu.
L'équipe de Pass4Test rehcerche la Q&A de test certification Cloudera CCA-470 en visant le test Cloudera CCA-470. Cet outil de formation peut vous aider à se préparer bien dans une courte terme. Vous vous renforcerez les connaissances de base et même prendrez tous essences de test Certification. Pass4Test vous assure à réussir le test Cloudera CCA-470 sans aucune doute.
Code d'Examen: CCA-470
Nom d'Examen: Cloudera (Cloudera Certified Administrator for Apache Hadoop CDH4 Upgrade Exam (CCAH))
Questions et réponses: 87 Q&As
Choisir le Pass4Test peut vous aider à réussir 100% le test Cloudera CCA-470 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.
C'est un bon choix si vous prendre l'outil de formation de Pass4Test. Vous pouvez télécharger tout d'abord le démo gratuit pour prendre un essai. Vous aurez plus confiances sur Pass4Test après l'essai de notre démo. Si malheureusement, vous ne passe pas le test, votre argent sera tout rendu.
Pas besoin de beaucoup d'argent et de temps, vous pouvez passer le test Cloudera CCA-470 juste avec la Q&A de Cloudera CCA-470 offerte par Pass4Test qui vous offre le test simulation bien proche de test réel.
Le programme de formation Cloudera CCA-470 offert par Pass4Test comprend les exercices et les test simulation. Vous voyez aussi les autres sites d'offrir l'outil de formation, mais c'est pas difficile à découvrir une grand écart de la qualité entre Pass4Test et les autres fournisseurs. Celui de Pass4Test est plus complet et convenable pour la préparation dans une courte terme.
CCA-470 Démo gratuit à télécharger: http://www.pass4test.fr/CCA-470.html
NO.1 In HDFS, you view a file with rw-r--r-- set as its permissions. What does this tell you about the
file?
A. The file cannot be deleted by anyone but the owner
B. The file cannot be deleted by anyone
C. The file cannot be run as a MapReduce job
D. The file’s contents can be modified by the owner, but no-one else
E. As a Filesystem in Userspace (FUSE), HDFS files are available to all user’s on a cluster
regardless of their underlying POSIX permissions.
Answer: A
Cloudera CCA-470 examen CCA-470 CCA-470 examen
NO.2 You have a cluster running with the FIFO scheduler enabled. You submit a large job A to the
cluster which you expect to run for one hour. Then, you submit job B to the cluster, which you
expect to run a couple of minutes only. Let’s assume both jobs are running at the same priority.
How does the FIFO scheduler execute the jobs? (Choose 3)
A. The order of execution of tasks within a job may vary.
B. When a job is submitted, all tasks belonging to that job are scheduled.
C. Given jobs A and B submitted in that order, all tasks from job A will be scheduled before all
tasks from job B.
D. Since job B needs only a few tasks, if might finish before job A completes.
Answer: A,B,C
Cloudera examen CCA-470 examen CCA-470 CCA-470 examen
NO.3 How does the NameNode know DataNodes are available on a cluster running MapReduce v1
(MRv1)
A. DataNodes listed in the dfs.hosts file. The NameNode uses as the definitive list of available
DataNodes.
B. DataNodes heartbeat in the master on a regular basis.
C. The NameNode broadcasts a heartbeat on the network on a regular basis, and DataNodes
respond.
D. The NameNode send a broadcast across the network when it first starts, and DataNodes
respond.
Answer: B
Cloudera examen CCA-470 certification CCA-470
NO.4 The failure of which daemon makes HDFS unavailable on a cluster running MapReduce v1
(MRv1)?
A. Node Manager
B. Application Manager
C. Resource Manager
D. Secondary NameNode
E. NameNode
F. DataNode
Answer: E
Cloudera examen CCA-470 CCA-470 examen
NO.5 Compare the hardware requirements of the NameNode with that of the DataNodes in a
Hadoop
cluster running MapReduce v1 (MRv1):
A. The NameNode requires more memory and requires greater disk capacity than the DataNodes.
B. The NameNode and DataNodes should the same hardware configuration.
C. The NameNode requires more memory and no disk drives.
D. The NameNode requires more memory but less disk capacity.
E. The NameNode requires less memory and less disk capacity than the DataNodes.
Answer: D
Cloudera examen CCA-470 examen certification CCA-470 CCA-470
NO.6 What does CDH packaging do on install to facilitate Kerberos security setup?
A. Automatically configure permissions for log files at $MAPPED_LOG_DIR/userlogs
B. Creates and configures you kdc with default cluster values.
C. Creates users for hdfs and mapreduce to facilitate role assignment.
D. Creates a set of pre-configured Kerberos keytab files and their permissions.
E. Creates directories for temp, hdfs, and mapreduce with correct permissions.
Answer: C
Cloudera certification CCA-470 CCA-470 examen CCA-470
NO.7 Identify the function performed by the Secondary NameNode daemon on a cluster configured
to
run with a single NameNode.
A. In this configuration, the Secondary NameNode performs a checkpoint operation on the files by
the NameNode.
B. In this configuration, the Secondary NameNode is standby NameNode, ready to failover and
provide high availability.
C. In this configuration, the Secondary NameNode performs deal-time backups of the NameNode.
D. In this configuration, the Secondary NameNode servers as alternate data channel for clients to
reach HDFS, should the NameNode become too busy.
Answer: A
certification Cloudera CCA-470 CCA-470 examen certification CCA-470 CCA-470 CCA-470
NO.8 Which two features does Kerberos security add to a Hadoop cluster?
A. Authentication for user access to the cluster against a central server
B. Encryption for data on disk ("at rest")
C. Encryption on all remote procedure calls (RPCs)
D. User authentication on all remote procedure calls (RPcs)
E. Root access to the cluster for users hdfs and mapred but non-root acess clients
Answer: C,D
certification Cloudera CCA-470 CCA-470 examen certification CCA-470
10. Which three processes does HDFS High Availability (HA) enable on your cluster?
A. Automatically 'fail over' between NameNodes if one goes down
B. Write data to two clusterssimultaneously
C. Shut one NameNode down for maintenance without halting the cluster
D. Manually 'fail over' between NameNodes
E. Configure unlimited hot standby NameNode.
Answer: A,C,D
Cloudera CCA-470 CCA-470 CCA-470
NO.9 A client wants to read a file from HDFS. How does the data get from the DataNodes to the
client?
A. The NameNode reads the blocks from the DataNodes, and caches them. Then, the application
reads the blocks from the NameNode.
B. The application reads the blocks directly from the DataNodes.
C. The blocks are sent to a single DataNode, then the application reads the blocks from that Data
Node.
Answer: B
certification Cloudera CCA-470 CCA-470 CCA-470
Votre vie changera beaucoup après d'obtenir le Certificat de Cloudera CCA-470. Tout va améliorer, la vie, le boulot, etc. Après tout, Cloudera CCA-470 est un test très important dans la série de test Certification Cloudera. Mais c'est pas facile à réussir le test Cloudera CCA-470.
没有评论:
发表评论