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Self-check

Questions 1–10 of 10

1. What is a MetaGraph?
Question 1A. A 'graph of metadata' that defines the structure, schema and semantics of a knowledge graph within a graph databaseB. A chart that plots the size of a database over timeC. A relational table that stores graph imagesD. A machine learning model trained on graphsE. A backup copy of a knowledge graph
2. Which of the following is NOT one of the things a MetaGraph specifies as a conceptual framework?
Question 2A. Entity types, such as Person, Company or ProductB. The actual data instance of every customer recordC. Relationship types, such as Works For or BuysD. Attributes of nodes and edges, such as Name or DateE. Constraints, such as cardinality and mandatory fields
3. How does a MetaGraph relate to a knowledge graph?
Question 3A. The MetaGraph replaces the knowledge graphB. The knowledge graph is a smaller copy of the MetaGraphC. The MetaGraph serves as the blueprint that defines the structure, schema and semantics of the knowledge graph's relationshipsD. The two are unrelated technologiesE. The knowledge graph stores the metadata and the MetaGraph stores the data
4. Which reason for a MetaGraph's importance refers to ensuring the knowledge graph adheres to a well-defined schema and preventing inconsistent or ambiguous relationships?
Question 4A. Data discoveryB. Performance optimisationC. InteroperabilityD. Semantic integrityE. Scalability
5. How does a MetaGraph support interoperability?
Question 5A. By converting all graphs into relational tablesB. By deleting duplicate nodes automaticallyC. By encrypting edges between systemsD. By requiring every graph to use the same vendorE. By acting as a universal schema to integrate multiple knowledge graphs, enabling seamless data exchange
6. Which MetaGraph component covers inheritance hierarchies, cardinality rules and restrictions such as 'a Company can have multiple Employees but not vice versa'?
Question 6A. Graph Schema RulesB. Node ClassesC. Edge ClassesD. Attribute MetadataE. Entity Instances
7. In a MetaGraph, what do Edge Classes define?
Question 7A. The data types and value ranges of propertiesB. Types of relationships, such as FriendOf, EmployeeOf or PartOfC. The types of entities and their attributesD. The physical storage location of the graphE. The colour used to draw each node
8. Which benefit of a MetaGraph relates to better management of data lineage, compliance and security through clear metadata definitions?
Question 8A. Enhanced query capabilitiesB. ScalabilityC. Data governanceD. Performance overheadE. Automated MetaGraph generation
9. Which of the following is listed as a challenge in implementing a MetaGraph?
Question 9A. Too few use cases for graph databasesB. Inability to represent constraintsC. Lack of support for entity typesD. The absence of a universal standard for MetaGraphs, which can create interoperability issuesE. Graph databases cannot store metadata
10. In the MetaGraph description, what is the MetaGraph said to enable in terms of representing reality?
Question 10A. A replacement for all relational databasesB. The elimination of ontologies and taxonomiesC. A guarantee of zero data errorsD. A ban on unstructured dataE. A complete digital twin of simple to complex reality