Graph databases quiz

We can use the ORDER BY clause in Cypher to sort results in ascending or descending order.

• True

• False

We can delete a node in Cypher without also deleting its associated relationships first.

• True

• False

 In Neo4j, relationships can have their own properties just like nodes.

• True

• False

In the Cypher type system, null is indicating..

• Its own type, just like in json.

• The absence of a value

• That a result of a query is empty, e.g. there is no match for the pattern.

• not specified, the user has to know and handle nulls case by case

In Neo4j, properties can be added to..

• Nodes

• Edges

• Properties

• Labels

In Neo4j, we can have a heterogenous list of flat values as a property

• True

• False

How is a graph represented in memory in Neo4j?

• Adjacency Matrix

• Incidence Matrix

• Adjacency List

• With pointers for each node to other nodes

On the disk, nodes are grouped into different nodestore files depending on their labels.

• True

• False

The Neo4j stores have fixed-size records, in order to accelerate lookups on the disk.

• True

• False

In the case of triple stores, IRI-s can be used as...

• Properties

• Subjects

• Objects