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Neo4j Practice Test 2026 | Exam Prep
Timed mock exams, detailed analytics, and practice drills for Neo4j.
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Q1Domain Verified
In the context of Neo4j's ACID properties, which of the following best describes the "Isolation" aspect when multiple concurrent transactions modify the same nodes or relationships?
Concurrent transactions that attempt to modify the same graph elements will be serialized, with one transaction completing before the next begins its modifications.
Transactions are guaranteed to be fully completed or not at all, preventing partial updates to the graph.
Once a transaction is committed, its changes are permanent and visible to all subsequent transactions, even in the event of system failures.
Each transaction is performed as if no other transaction is executing concurrently, ensuring data consistency across all operations.
Q2Domain Verified
When designing a graph model for a social network in Neo4j, what is the primary consideration when deciding whether to represent a "friendship" as a relationship or as a node with multiple outgoing relationships?
The need to attach further relationships to the "friendship" entity, such as "blocked" or "unfriended."
The frequency of querying for direct connections versus querying for friends of friends or more complex social patterns.
The number of properties associated with the "friendship" itself, such as the date friended or a mutual friend indicator.
The cardinality of the relationship (one-to-many vs. many-to-many) is the most critical factor.
Q3Domain Verified
Consider a scenario where you are building a recommendation engine using Neo4j. You have `(:User)` nodes and `(:Product)` nodes, with `(:User)-[:PURCHASED]->(:Product)` relationships. Which Cypher clause is most efficient for finding products that users who purchased product X also purchased, excluding product X itself?
`MATCH (p1:Product {id: "X"})<-[:PURCHASED]-(u:User)-[:PURCHASED]->(p2:Product) RETURN p2 LIMIT 10`
`MATCH (p1:Product {id: "X"})<-[:PURCHASED]-(u:User) WITH u, p1 MATCH (u)-[:PURCHASED]->(p2:Product) WHERE p2.id <> p1.id RETURN DISTINCT p2`
`MATCH (p1:Product {id: "X"})<-[:PURCHASED]-(u:User) MATCH (u)-[:PURCHASED]->(p2:Product) WHERE p2.id <> "X" RETURN DISTINCT p2`
`MATCH (p1:Product {id: "X"})<-[:PURCHASED]-(u:User)-[:PURCHASED]->(p2:Product) WHERE p1 <> p2 RETURN DISTINCT p2`
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This domain protocol is rigorously covered in our 2026 Elite Framework. Every mock reflects direct alignment with the official assessment criteria to eliminate performance gaps.
This domain protocol is rigorously covered in our 2026 Elite Framework. Every mock reflects direct alignment with the official assessment criteria to eliminate performance gaps.
This domain protocol is rigorously covered in our 2026 Elite Framework. Every mock reflects direct alignment with the official assessment criteria to eliminate performance gaps.
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