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Apache Hadoop Developer Certification Dumps

Passcert new cracked Apache Hadoop Developer Certification Dumps which contain many practice questions and answers and they can ensure you pass your exam easily.

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Apache Hadoop Developer Certification Dumps

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  1. Apache Hadoop Apache Hadoop Developer Dumps Developer Dumps Hadoop 2.0 Certification exam for Hadoop 2.0 Certification exam for Pig and Hive Developer Pig and Hive Developer https://www.passcert.com/ https://www.passcert.com/Apache-Hadoop-Developer Apache-Hadoop-Developer.html .html

  2. Download Passcert valid Apache Hadoop Developer exam dumps to pass your Apache Hadoop Developer exam successfully Question 1 Which one of the following statements describes a Pig bag. tuple, and map, respectively? Which one of the following statements describes a Pig bag. tuple, and map, respectively? A. Unordered collection of maps, ordered collection of tuples, ordered set of key/value pairs A. Unordered collection of maps, ordered collection of tuples, ordered set of key/value pairs B. Unordered collection of tuples, ordered set of fields, set of key value pairs B. Unordered collection of tuples, ordered set of fields, set of key value pairs C. Ordered set of fields, ordered collection of tuples, ordered collection of maps C. Ordered set of fields, ordered collection of tuples, ordered collection of maps D. Ordered collection of maps, ordered collection of bags, and unordered set of key/value pairs D. Ordered collection of maps, ordered collection of bags, and unordered set of key/value pairs Answer: B Answer: B 2

  3. Download Passcert valid Apache Hadoop Developer exam dumps to pass your Apache Hadoop Developer exam successfully Question 2 You want to run Hadoop jobs on your development workstation for testing before you submit them to You want to run Hadoop jobs on your development workstation for testing before you submit them to your production cluster. your production cluster. Which mode of operation in Hadoop allows you to most closely simulate a production cluster while using a Which mode of operation in Hadoop allows you to most closely simulate a production cluster while using a single machine? single machine? A. Run all the nodes in your production cluster as virtual machines on your development workstation. A. Run all the nodes in your production cluster as virtual machines on your development workstation. B. Run the hadoop command with the –jt local and the –fs file:///options. B. Run the hadoop command with the –jt local and the –fs file:///options. C. Run the DataNode, TaskTracker, NameNode and JobTracker daemons on a single machine. C. Run the DataNode, TaskTracker, NameNode and JobTracker daemons on a single machine. D. Run simldooop, the Apache open-source software for simulating Hadoop clusters. D. Run simldooop, the Apache open-source software for simulating Hadoop clusters. Answer: C Answer: C 3

  4. Download Passcert valid Apache Hadoop Developer exam dumps to pass your Apache Hadoop Developer exam successfully Question 3 Which HDFS command uploads a local file X into an existing HDFS directory Y? Which HDFS command uploads a local file X into an existing HDFS directory Y? A. hadoop scp X Y A. hadoop scp X Y B. hadoop fs -localPut X Y B. hadoop fs -localPut X Y C. hadoop fs-put X Y C. hadoop fs-put X Y D. hadoop fs -get X Y D. hadoop fs -get X Y Answer: C Answer: C 4

  5. Download Passcert valid Apache Hadoop Developer exam dumps to pass your Apache Hadoop Developer exam successfully Question 4 In Hadoop 2.0, which TWO of the following processes work together to provide automatic failover of the In Hadoop 2.0, which TWO of the following processes work together to provide automatic failover of the NameNode? Choose 2 answers NameNode? Choose 2 answers A. ZKFailoverController A. ZKFailoverController B. ZooKeeper B. ZooKeeper C. QuorumManager C. QuorumManager D. JournalNode D. JournalNode Answer: A,D Answer: A,D 5

  6. Download Passcert valid Apache Hadoop Developer exam dumps to pass your Apache Hadoop Developer exam successfully Question 5 To use a lava user-defined function (UDF) with Pig what must you do? To use a lava user-defined function (UDF) with Pig what must you do? A. Define an alias to shorten the function name A. Define an alias to shorten the function name B. Pass arguments to the constructor of UDFs implementation class B. Pass arguments to the constructor of UDFs implementation class C. Register the JAR file containing the UDF C. Register the JAR file containing the UDF D. Put the JAR file into the user's home folder in HDFS D. Put the JAR file into the user's home folder in HDFS Answer: C Answer: C 6

  7. Download Passcert valid Apache Hadoop Developer exam dumps to pass your Apache Hadoop Developer exam successfully Question 6 When is the earliest point at which the reduce method of a given Reducer can be called? When is the earliest point at which the reduce method of a given Reducer can be called? A. As soon as at least one mapper has finished processing its input split. A. As soon as at least one mapper has finished processing its input split. B. As soon as a mapper has emitted at least one record. B. As soon as a mapper has emitted at least one record. C. Not until all mappers have finished processing all records. C. Not until all mappers have finished processing all records. D. It depends on the InputFormat used for the job. D. It depends on the InputFormat used for the job. Answer: C Answer: C 7

  8. Download Passcert valid Apache Hadoop Developer exam dumps to pass your Apache Hadoop Developer exam successfully Question 7 Which one of the following statements describes the relationship between the ResourceManager and the Which one of the following statements describes the relationship between the ResourceManager and the ApplicationMaster? ApplicationMaster? A. The ApplicationMaster requests resources from the ResourceManager A. The ApplicationMaster requests resources from the ResourceManager B. The ApplicationMaster starts a single instance of the ResourceManager B. The ApplicationMaster starts a single instance of the ResourceManager C. The ResourceManager monitors and restarts any failed Containers of the ApplicationMaster C. The ResourceManager monitors and restarts any failed Containers of the ApplicationMaster D. The ApplicationMaster starts an instance of the ResourceManager within each Container D. The ApplicationMaster starts an instance of the ResourceManager within each Container Answer: A Answer: A 8

  9. Download Passcert valid Apache Hadoop Developer exam dumps to pass your Apache Hadoop Developer exam successfully Question 8 Which HDFS command copies an HDFS file named foo to the local filesystem as localFoo? Which HDFS command copies an HDFS file named foo to the local filesystem as localFoo? A. hadoop fs -get foo LocalFoo A. hadoop fs -get foo LocalFoo B. hadoop -cp foo LocalFoo B. hadoop -cp foo LocalFoo C. hadoop fs -Is foo C. hadoop fs -Is foo D. hadoop fs -put foo LocalFoo D. hadoop fs -put foo LocalFoo Answer: A Answer: A 9

  10. Download Passcert valid Apache Hadoop Developer exam dumps to pass your Apache Hadoop Developer exam successfully Question 9 You need to perform statistical analysis in your MapReduce job and would like to call methods in the Apache Commons You need to perform statistical analysis in your MapReduce job and would like to call methods in the Apache Commons Math library, which is distributed as a 1.3 megabyte Java archive (JAR) file. Math library, which is distributed as a 1.3 megabyte Java archive (JAR) file. Which is the best way to make this library available to your MapReducer job at runtime? Which is the best way to make this library available to your MapReducer job at runtime? A. Have your system administrator copy the JAR to all nodes in the cluster and set its location in the A. Have your system administrator copy the JAR to all nodes in the cluster and set its location in the HADOOP_CLASSPATH environment variable before you submit your job. HADOOP_CLASSPATH environment variable before you submit your job. B. Have your system administrator place the JAR file on a Web server accessible to all cluster nodes and then set the B. Have your system administrator place the JAR file on a Web server accessible to all cluster nodes and then set the HTTP_JAR_URL environment variable to its location. HTTP_JAR_URL environment variable to its location. C. When submitting the job on the command line, specify the –libjars option followed by the JAR file path. C. When submitting the job on the command line, specify the –libjars option followed by the JAR file path. D. Package your code and the Apache Commands Math library into a zip file named JobJar.zip D. Package your code and the Apache Commands Math library into a zip file named JobJar.zip Answer: C Answer: C 10

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