Hadoop Multiple Choice Questions on “Lucene with Hadoop – 1”.
1. ___________ provides Java-based indexing and search technology.
a) Solr
b) Lucene Core
c) Lucy
d) All of the mentioned
Answer: b
Clarification: Lucene provides spellchecking, hit highlighting and advanced analysis/tokenization capabilities.
2. Point out the correct statement.
a) Building PyLucene requires GNU Make, a recent version of Ant capable of building Java Lucene and a C++ compiler
b) PyLucene is supported on Mac OS X, Linux, Solaris and Windows
c) Use of setuptools is recommended for Lucene
d) All of the mentioned
Answer: d
Clarification: PyLucene requires Python version 2.x (x >= 3.5) and Java version 1.x (x &t;= 5).
3. ___________ is a high performance search server built using Lucene Core.
a) Solr
b) Lucene Core
c) Lucy
d) PyLucene
Answer: a
Clarification: Solr provides hit highlighting, faceted search, caching, replication, and a web admin interface.
4. ____________ is a subproject with the aim of collecting and distributing free materials.
a) OSR
b) OPR
c) ORP
d) ORS
Answer: c
Clarification: Open Relevance Project is used for relevance testing and performance.
5. Point out the wrong statement.
a) PyLucene is a Lucene port
b) PyLucene embeds a Java VM with Lucene into a Python process
c) The PyLucene Python extension, a Python module called lucene is machine-generated by JCC
d) PyLucene is built with JCC
Answer: a
Clarification: PyLucene is not a Lucene port but a Python wrapper around Java Lucene.
6. _______ is a Python port of the Core project.
a) Solr
b) Lucene Core
c) Lucy
d) PyLucene
Answer: d
Clarification: PyLucene is a Python extension for accessing Java LuceneTM.
7. The Lucene _________ is pleased to announce the availability of Apache Lucene 5.0.0 and Apache Solr 5.0.0.
a) PMC
b) RPC
c) CPM
d) All of the mentioned
Answer: a
Clarification: PyLucene was previously hosted at the Open Source Applications Foundation.
8. ___________ is a technology suitable for nearly any application that requires full-text search, especially cross-platform.
a) Lucene
b) Oozie
c) Lucy
d) All of the mentioned
Answer: a
Clarification: Apache Lucene is a high-performance, full-featured text search engine library written entirely in Java.
9. Lucene provides scalable, high-Performance indexing over ______ per hour on modern hardware.
a) 1 TB
b) 150GB
c) 10 GB
d) None of the mentioned
Answer: b
Clarification: Lucene offers powerful features through a simple API.
10. Lucene index size is roughly _______ the size of text indexed.
a) 10%
b) 20%
c) 50%
d) 70%
Answer: b
Clarification: Lucene provides incremental indexing as fast as batch indexing.