Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer - Apache-Hadoop-Developer Exam Practice Test

A. The ResourceManager monitors and restarts any failed Containers of the ApplicationMaster B. The ApplicationMaster starts a single instance of the ResourceManager C. The ApplicationMaster requests resources from the ResourceManager D. The ApplicationMaster starts an instance of the ResourceManager within each Container

A. The default partitioner computes the hash of the key. Hash values between specific ranges are associated with different buckets, and each bucket is assigned to a specific reducer. B. The default partitioner implements a round-robin strategy, shuffling the key-value pairs to each reducer in turn. This ensures an event partition of the key space. C. The default partitioner assigns key-values pairs to reduces based on an internal random number generator. D. The default partitioner computes the hash of the value and takes the mod of that value with the number of reducers. The result determines the reducer assigned to process the key-value pair. E. The default partitioner computes the hash of the key and divides that valule modulo the number of reducers. The result determines the reducer assigned to process the key-value pair.

A. DataNodes send periodic heartbeats to all the NameNodes. B. Each DataNode receives commands from one designated master NameNode. C. DataNodes send periodic block reports to all the NameNodes. D. Each DataNode registers with all the NameNodes.

A. Ordered collection of maps, ordered collection of bags, and unordered set of key/value pairs B. Unordered collection of tuples, ordered set of fields, set of key value pairs C. Unordered collection of maps, ordered collection of tuples, ordered set of key/value pairs D. Ordered set of fields, ordered collection of tuples, ordered collection of maps

A. Serialize the data file, insert in it the JobConf object, and read the data into memory in the configure method of the mapper. B. Place the data file in the DistributedCache and read the data into memory in the map method of the mapper. C. Place the data file in the DistributedCache and read the data into memory in the configure method of the mapper. D. Place the data file in the DataCache and read the data into memory in the configure method of the mapper.

A. Records can only be added to the table using the Hive INSERT command. B. Hive dynamically defines the schema of the table based on the FROM clause of a SELECT query. C. Hive dynamically defines the schema of the table based on the format of the underlying data. D. When the table is dropped, the underlying folder in HDFS is deleted.

A. The amount of RAM installed on the TaskTracker node. B. The average system load on the TaskTracker node over the past fifteen (15) minutes. C. The amount of free disk space on the TaskTracker node. D. The number and speed of CPU cores on the TaskTracker node. E. The location of the InsputSplit to be processed in relation to the location of the node.

A. 640 B. 64 C. 200 D. 100

A. Keys are presented to a reducer in random order; values for a given key are sorted in ascending order. B. Keys are presented to reducer in sorted order; values for a given key are not sorted. C. Keys are presented to a reducer in random order; values for a given key are not sorted. D. Keys are presented to reducer in sorted order; values for a given key are sorted in ascending order.

A. Hue B. Flume C. Hive D. Sqoop E. Oozie F. Pig G. HBase