Match the LIST-I with LIST-II Choose the correct answer from the options given below:LIST-I LIST-II A. Hadoop Distribution File System I. Trust B. Veracity II. Facebook C. Apache Pig III. Name-Node D. Apache Hive IV. Yahoo
A-III, B-I, C-IV, D-II
The items come from the Hadoop ecosystem and the V-characteristics of big data.
A — Hadoop Distributed File System: HDFS has a master/slave design in which the Name-Node holds the namespace and block metadata while Data-Nodes store the blocks, so A-III.
B — Veracity: the V of big data that concerns the quality, accuracy and trustworthiness of the data, so B-I.
C — Apache Pig: the Pig Latin data-flow platform was developed at Yahoo Research (around 2006), so C-IV.
D — Apache Hive: the SQL-like data-warehouse layer (HiveQL) was developed at Facebook before being donated to Apache, so D-II.
The code A-III, B-I, C-II, D-IV interchanges the origins of Pig and Hive; A-IV, B-III, C-I, D-II and A-II, B-III, C-I, D-IV pair HDFS with a company and veracity with Name-Node, which do not fit.
A-III, B-I, C-IV, D-II option is correct.
Important Questions from Big Data
Arrange the following steps of the Map reduce framework
A. Input Splitting
B. Reducing
C. Mapping
D. Shuffling & Sorting
Choose the correct answer from the options given below:
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: HDFS follows a master-slave architecture with Name Node and Data Nodes.
Reason R: Name Node stores metadata, while Data Nodes store actual data blocks.
In the light of the above statements, choose the most appropriate answer from the options given below
Which of the following are database systems, rather than an in-memory object-caching system?
(A) Memcached
(B) CouchDB
(C) InfiniteGraphChoose the most appropriate answer from the options below.
The data node and name node in HADOOP are
Hadoop (a big data tool) works with number of related tools. Choose from the following, the common tools included into Hadoop:
