Semantic Web

Description

The ultimate test whether you are a Semantic Web expert. Maintained by the Semantic Web Company (http://www.semantic-web.at/)
Andreas Blumauer
Quiz by Andreas Blumauer, updated more than 1 year ago
Andreas Blumauer
Created by Andreas Blumauer over 9 years ago
1277
2

Resource summary

Question 1

Question
Semantics ...
Answer
  • ... focuses on the relation between words, phrases, signs, and symbols, and what they stand for
  • ... is the study of meaning

Question 2

Question
The Semantic Web ...
Answer
  • ... is an advanced search technology
  • ... allows data to be shared and reused across application, enterprise, and community boundaries
  • ... visualizes things and how they are related to each other
  • ... refers to W3C’s vision of the Web of linked data
  • ... is a knowledge base which is open for anybody under a CC-BY license

Question 3

Question
What means 'RDF'?
Answer
  • Rich Text Format
  • Resource Description Format
  • Resource Description Framework

Question 4

Question
The RDF Data Cube Vocabulary is compatible with ...
Answer
  • The Data Documentation Initiative (DDI)
  • SDMX (Statistical Data and Metadata eXchange), an ISO standard
  • UN/EDIFACT

Question 5

Question
JSON-LD is ...
Answer
  • ... a method of transporting Linked Data using JSON
  • ... used to store Linked Data in JSON-based storage engines
  • ... a concrete RDF syntax

Question 6

Question
Schema.org vocabulary may be embedded in an HTML page using ...
Answer
  • RDF/XML
  • JSON-LD
  • RDFa
  • Microdata

Question 7

Question
XML is a file format for
Answer
  • RDF
  • JSON-LD

Question 8

Question
What is a 'homonym'?
Answer
  • A synonym for 'synonym'
  • A concept that is in some way more general than another one
  • A word that shares the same written form as another word with a different meaning

Question 9

Question
Every top concept in a skos:ConceptScheme is a skos:Concept
Answer
  • True
  • False

Question 10

Question
Taxonomies based on SKOS ...
Answer
  • ... are simple trees but no graphs
  • ... can be used for auto-classification
  • ... can be enriched by additional RDF statements
  • ... can be queried via SPARQL

Question 11

Answer
  • ... is not downward compatible to OWL 1
  • ... is equivalent to OWL 1, but is a simpler and more practical version of it
  • ... is an update to OWL 1 adding several new features

Question 12

Question
SPARQL property paths add the ability to match connectivity of two resources by an arbitrary length path
Answer
  • True
  • False

Question 13

Question
Which SPARQL 1.1 feature helps to merge data distributed across the Web
Answer
  • Sub-queries
  • Federated queries
  • Property paths

Question 14

Question
Which of the following graph databases do NOT natively support SPARQL?
Answer
  • Virtuoso
  • GraphDB
  • Neo4j
  • MarkLogic

Question 15

Question
What are Named Graphs good for?
Answer
  • ... describe provenance information of triples
  • ... for managing sets of RDF data within an RDF store
  • ... providing means for access control
  • ... simplify SPARQL queries

Question 16

Question
When using a knowledge graph for entity extraction, what will a text mining service based on this most probably return?
Answer
  • A value for precision and recall
  • A search result
  • The URIs of extracted entities
  • The relevancy rank of a document

Question 17

Question
What's the name of the most common RDF model for representing lexical information?
Answer
  • Ontolex
  • Wordnet
  • Lemon

Question 18

Answer
  • ... is a REST API for mesh-ups based on RDF
  • ... is a W3C standard for taxonomies
  • ... is a thesaurus widely used in medicine and pharma industry

Question 19

Answer
  • ... describes around 4.5 million things in its English version
  • ... provides localized versions in 125 languages
  • ... is an RDF Data Set hosted and published using OpenLink Virtuoso
  • ... allows to ask sophisticated SQL queries against Wikipedia

Question 20

Question
Which entity is represented by https://www.wikidata.org/wiki/Q42 ?
Answer
  • Lewis Carroll
  • Douglas Adams
  • Czech Republic

Question 21

Question
Forward chaining ...
Answer
  • ... is one of the two main methods of reasoning
  • ... is data-driven but not goal-driven
  • ... is better suited to dynamic situations than backward chaining
  • ... is faster than backward chaining
  • ... applies the inference rules to the known facts to generate new facts

Question 22

Question
Sail (The Storage And Inference Layer) is like the JDBC of the RDF database world
Answer
  • True
  • False

Question 23

Answer
  • ... contains over 100 million placenames that are available for download free of charge
  • ... is serving up to over 150 million web service requests per day
  • ... is available as an RDF dump with about 150 mio RDF triples

Question 24

Question
One of the largest conference series in the area of Semantic Technologies is named ...
Answer
  • RDF World
  • True Search
  • SEMANTiCS

Question 25

Question
This quiz is maintained by Semantic Web Company and the PoolParty Team
Answer
  • True
  • False
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