HADOOP QUIZ DESCRIPTION Total Questions −30 00 Max Time − 15:00 _________ is the default Partitioner for partitioning key space. HashPar Partitioner HashPartitioner None of the mentioned Mapper implementations are passed the JobConf for the job via the ________ method. JobConfigure.configure JobConfigurable.configure JobConfigurable.configurable None of the mentioned Hive also support custom extensions written in ____________ C# Java C C++ As companies move past the experimental phase with Hadoop, many cite the need for additional capabilities, including _______________ Improved data storage and information retrieval Improved extract, transform and load features for data integration Improved data warehousing functionality Improved security, workload management, and SQL support ________ is the primary interface for a user to describe a MapReduce job to the Hadoop framework for execution. Map Parameters JobConf MemoryConf None of the mentioned What license is Hadoop distributed under? Apache License 2.0 Apache License 2.0 Shareware Commercial Which of the following platforms does Hadoop run on? Bare metal Debian Cross-platform Unix-like Point out the wrong statement. Hardtop processing capabilities are huge and its real advantage lies in the ability to process terabytes & petabytes of data Hadoop uses a programming model called “MapReduce”, all the programs should conform to this model in order to work on the Hadoop platform The programming model, MapReduce, used by Hadoop is difficult to write and test All of the mentioned Point out the correct statement. Applications can use the Reporter to report progress The Hadoop MapReduce framework spawns one map task for each InputSplit generated by the InputFormat for the job The intermediate, sorted outputs are always stored in a simple (key-len, key, value-len, value) format All of the mentioned Point out the correct statement. Hive is not a relational database, but a query engine that supports the parts of SQL specific to querying data Hive is a relational database with SQL support Pig is a relational database with SQL support All of the mentioned What was Hadoop named after? Creator Doug Cutting’s favorite circus act Cutting’s high school rock band The toy elephant of Cutting’s son A sound Cutting’s laptop made during Hadoop development According to analysts, for what can traditional IT systems provide a foundation when they’re integrated with big data technologies like Hadoop? Big data management and data mining Data warehousing and business intelligence Management of Hadoop clusters Collecting and storing unstructured data The right number of reduces seems to be ____________ 0.90 0.80 0.36 0.95 _________ maps input key/value pairs to a set of intermediate key/value pairs. Mapper Reducer Both Mapper and Reducer None of the mentioned ________ is a generalization of the facility provided by the MapReduce framework to collect data output by the Mapper or the Reducer. Partitioner OutputCollector Reporter All of the mentioned _______ function is responsible for consolidating the results produced by each of the Map() functions/tasks. Reduce Map Reducer All of the mentioned Point out the wrong statement. Elastic MapReduce (EMR) is Facebook’s packaged Hadoop offering Amazon Web Service Elastic MapReduce (EMR) is Amazon’s packaged Hadoop offering Scalding is a Scala API on top of Cascading that removes most Java boilerplate All of the mentioned Which of the following genres does Hadoop produce? Distributed file system JAX-RS Java Message Service Relational Database Management System ________ hides the limitations of Java behind a powerful and concise Clojure API for Cascading. Scalding HCatalog Cascalog All of the mentioned Point out the correct statement. Hadoop is an ideal environment for extracting and transforming small volumes of data Hadoop stores data in HDFS and supports data compression/decompression The Giraph framework is less useful than a MapReduce job to solve graph and machine learning None of the mentioned __________ is general-purpose computing model and runtime system for distributed data analytics. Mapreduce Drill Oozie None of the mentioned Although the Hadoop framework is implemented in Java, MapReduce applications need not be written in ____________ Java C C# None of the mentioned What was Hadoop written in? Java (software platform) Perl Java (programming language) Lua (programming language) Mapper and Reducer implementations can use the ________ to report progress or just indicate that they are alive. Partitioner OutputCollector Reporter All of the mentioned _______ is the most popular high-level Java API in Hadoop Ecosystem Scalding HCatalog Cascalog Cascading Point out the wrong statement. Reducer has 2 primary phases Increasing the number of reduces increases the framework overhead, but increases load balancing and lowers the cost of failures It is legal to set the number of reduce-tasks to zero if no reduction is desired The framework groups Reducer inputs by keys (since different mappers may have output the same key) in the sort stage Facebook Tackles Big Data With _______ based on Hadoop. ‘Project Prism’ ‘Prism’ ‘Project Big’ ‘Project Data’ _______ is a utility which allows users to create and run jobs with any executables as the mapper and/or the reducer. Hadoop Strdata Hadoop Streaming Hadoop Stream None of the mentioned _________ has the world’s largest Hadoop cluster. Apple Datamatics Facebook None of the mentioned A ________ node acts as the Slave and is responsible for executing a Task assigned to it by the JobTracker. MapReduce Mapper TaskTracker JobTracker Previous Next Total Question16 Wrong Answer13 Right Answer13
