Neo4j Interview Questions and Answers
Ques 31. What is the purpose of the PROFILE and EXPLAIN keywords in Cypher?
The PROFILE keyword in Cypher is used to analyze the query execution plan, while the EXPLAIN keyword provides a high-level overview of how the query will be processed. They help optimize and understand query performance.
Ques 32. How does Neo4j handle schema in the graph database?
Neo4j is a schema-optional graph database, allowing users to add and modify the structure of the graph dynamically. It provides flexibility in modeling and evolving the graph schema.
Ques 33. Explain the purpose of the CONSTRAINT keyword in Cypher.
The CONSTRAINT keyword in Cypher is used to define constraints on the graph, such as uniqueness constraints on node labels or relationship types. It ensures data integrity and consistency.
Ques 34. What is the role of the Neo4j Causal Clustering architecture?
Causal Clustering in Neo4j is an architecture that supports high availability and fault tolerance. It uses a cluster of servers with a consensus algorithm to ensure data consistency.
Ques 35. How does Neo4j handle full-text search?
Neo4j provides full-text search capabilities through the use of the Apache Lucene indexing engine. Users can perform text searches on nodes and relationships in the graph.
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