This set of Hadoop Multiple Choice Questions & Answers (MCQs) focuses on “Serialization”. 1. Apache _______ is a serialization framework that produces data in a compact binary format. a) Oozie b) Impala c) kafka d) Avro 2. Point out the correct statement. a) Apache Avro is a framework that allows you to serialize data in … Read more
This set of Hadoop Multiple Choice Questions & Answers (MCQs) focuses on “Data Integrity”. 1. The HDFS client software implements __________ checking on the contents of HDFS files. a) metastore b) parity c) checksum d) none of the mentioned 2. Point out the correct statement. a) The HDFS architecture is compatible with data rebalancing schemes … Read more
This set of Hadoop Multiple Choice Questions & Answers (MCQs) focuses on “Compression”. 1. The _________ codec from Google provides modest compression ratios. a) Snapcheck b) Snappy c) FileCompress d) None of the mentioned 2. Point out the correct statement. a) Snappy is licensed under the GNU Public License (GPL) b) BgCIK needs to create … Read more
This set of Hadoop Multiple Choice Questions & Answers (MCQs) focuses on “Hadoop I/O”. 1. Hadoop I/O Hadoop comes with a set of ________ for data I/O. a) methods b) commands c) classes d) none of the mentioned 2. Point out the correct statement. a) The sequence file also can contain a “secondary” key-value list … Read more
This set of Hadoop Multiple Choice Questions & Answers (MCQs) focuses on “Hadoop Archives”. 1. _________ is the name of the archive you would like to create. a) archive b) archiveName c) name d) none of the mentioned 2. Point out the correct statement. a) A Hadoop archive maps to a file system directory b) … Read more
This set of Hadoop Multiple Choice Questions & Answers (MCQs) focuses on “Data Flow”. 1. ________ is a programming model designed for processing large volumes of data in parallel by dividing the work into a set of independent tasks. a) Hive b) MapReduce c) Pig d) Lucene 2. Point out the correct statement. a) Data … Read more
This set of Hadoop Multiple Choice Questions & Answers (MCQs) focuses on “Java Interface”. 1. In order to read any file in HDFS, instance of __________ is required. a) filesystem b) datastream c) outstream d) inputstream 2. Point out the correct statement. a) The framework groups Reducer inputs by keys b) The shuffle and sort … Read more
This set of Multiple Choice Questions & Answers (MCQs) focuses on “Introduction to HDFS”. 1. A ________ serves as the master and there is only one NameNode per cluster. a) Data Node b) NameNode c) Data block d) Replication 2. Point out the correct statement. a) DataNode is the slave/worker node and holds the user … Read more
This set of Hadoop Multiple Choice Questions & Answers (MCQs) focuses on “Hadoop Streaming”. 1. Streaming supports streaming command options as well as _________ command options. a) generic b) tool c) library d) task 2. Point out the correct statement. a) You can specify any executable as the mapper and/or the reducer b) You cannot … Read more
This set of Hadoop Multiple Choice Questions & Answers (MCQs) focuses on “Scaling out in Hadoop”. 1. ________ systems are scale-out file-based (HDD) systems moving to more uses of memory in the nodes. a) NoSQL b) NewSQL c) SQL d) All of the mentioned 2. Point out the correct statement. a) Hadoop is ideal for … Read more
