CCA-505 無料問題集「Cloudera Certified Administrator for Apache Hadoop (CCAH) CDH5 Upgrade」

（A）The Mapper transfers the intermediate data immediately to the Reducers as it 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.local-dirs

（C）The Mapper stores the intermediate data in HDFS on the node where the MAP tasks ran in the HDFS /usercache/&[user]sppcache/application_&(appid) directory for the user who ran the job

（D）The Mapper stores the intermediate data on the mode running the job's ApplicationMaster so that is available to YARN's ShuffleService before the data is presented to the Reducer

（E）YARN holds the intermediate data in the NodeManager's memory (a container) until it is transferred to the Reducers

（A）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

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

（C）Clients connect to ZoneKeeper to determine which NameNode is Active

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

（E）It manages the Edits file, which is a log changes to the HDFS filesystem.

（A）ApplicationMaster

（B）ResourceManager

（C）ApplicationManagerService

（D）NodeManager

（A）They may be formatted in any Linux filesystem

（B）They must be formatted as HDFS

（C）They must be formatted as either ext3 or ext4

（D）They must not formatted - - HDFS will format the filesystem automatically