Quiz: RDF Explained: Triples, IRIs and Serializations

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Question 1 of 3

1. Question

Which statement about where each kind of RDF term may appear is correct?

Literals may appear only in the object position, and predicates are always IRIs
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Literals may appear in the subject position provided they carry a datatype IRI such as xsd:decimal
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Predicates may be blank nodes, which is how RDF represents anonymous relationships
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Blank nodes were removed in RDF 1.1 and are being reintroduced by RDF 1.2
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Question 2 of 3

2. Question

What is the headline feature of RDF 1.2, as the lesson describes it?

Named graphs, which add a fourth column to every triple for provenance
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The triple term: a triple may itself appear in the object position of another triple, which makes statement-level metadata such as source and confidence a first-class modelling tool
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A newly standardised reification vocabulary that records each statement with four bookkeeping triples
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Closed-world semantics for RDF datasets, aligning RDF with SHACL validation
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Question 3 of 3

3. Question

Which characterisation of the RDF serializations matches the lesson?

N-Triples is the human-friendly authoring notation, while Turtle is the line-oriented bulk-load format
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JSON-LD is a separate data model from RDF, so JSON-LD documents cannot round-trip to Turtle without loss of meaning
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RDF/XML is the recommended syntax for new work, since it is the only one OWL tooling accepts
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N-Triples is Turtle stripped of every convenience, one fully expanded triple per line with no prefixes, which makes it streamable, splittable and the standard interchange for bulk loads
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Quiz: RDF Explained: Triples, IRIs and Serializations

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