최신Cloudera Certified Administrator for Apache Hadoop (CCAH) - CCA-500무료샘플문제

A. Oozie

B. Sqoop

C. HUE

D. ZooKeeper

E. HBase

A. If only manages the Edits file, which is log of changes to the HDFS filesystem

B. It only keeps track of which NameNode is Active at any given time

C. It both keeps track of which NameNode is Active at any given time, and manages the Edits file. Which is a log of
changes to the HDFS filesystem

D. It monitors an NFS mount point and reports if the mount point disappears

E. Clients connect to ZooKeeper to determine which NameNode is Active

A. yarn.application.child.java.opts=-Xmx3072m

B. mapreduce.map.java.opts=-Xms3072m

C. yarn.application.child.java.opts=-Xsx3072m

D. mapreduce.map.java.opts=-Xmx3072m

A. When Job A gets submitted, it doesn't consumes all the task slots.

B. When Job A gets submitted, it consumes all the task slots.

C. When Job B gets submitted, Job A has to finish first, before job B can gets scheduled.

D. When Job B gets submitted, it will get assigned tasks, while job A continues to run with fewer tasks.

A. You don't need to restart any daemon, as they will pick up changes automatically

B. You must modify the configuration files on each of the six SataNodes machines

C. You must restart the NameNode daemon to apply the changes to the cluster

D. You must restart all six DatNode daemon to apply the changes to the cluster

E. You must modify the configuration files on the NameNode only. DataNodes read their configuration from the master nodes

A. You don't need to configure or balance these properties in YARN as YARN dynamically balances resource
management capabilities on your cluster

B. Configure mapred.tasktracker.map.tasks.maximum and mapred.tasktracker.reduce.tasks.maximum ub yarn-site.xml
to match your cluster's capacity set by the yarn-scheduler.minimum-allocation

C. Configure yarn.nodemanager.resource.memory-mb and yarn.nodemanager.resource.cpuvcores to match the
capacity you require under YARN for each NodeManager

D. Configure yarn.applicationmaster.resource.memory-mb and
yarn.applicationmaster.resource.cpu-vcores so that ApplicationMaster container allocations match the capacity you
require.