NoSQL Online Test

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This practice test has 20 questions
You have to attempt all the questions
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1. What is a key characteristic of NoSQL databases with regard to schema?

Rigid schema Flexible schema No schema Static schema

2. In NoSQL caching, what does cache coherency refer to?

Data Duplication Data Consistency Data Compression Data Encryption

3. Which type of data migration typically involves copying the entire dataset to the target NoSQL database?

Horizontal Migration Vertical Migration Total Migration Incremental Migration

4. What type of NoSQL database is typically queried using the "Gremlin" query language?

Document Stores Key-Value Stores Column-Family Stores Graph Databases

5. Which NoSQL data model is optimized for complex relationship queries?

Key-Value Store Column-family Store Wide-Column Store Graph Store

6. Amazon DynamoDB is a fully managed NoSQL database service provided by which company?

Google Amazon Microsoft IBM

7. What does the "I" stand for in the "BASE" consistency model?

Immediate Isolation Inconsistency Immutable

8. Which NoSQL databases often support role-based access control (RBAC)?

MongoDB Cassandra Redis Couchbase

9. Which caching strategy is useful for caching query results in NoSQL databases?

Write-Through Cache Expiration-Based Cache Read-Through Cache Cache Invalidation

10. What is one of the reasons for using NoSQL-to-SQL migration in data migration projects?

Schema Unification Performance Optimization Data Compression Data Duplication

11. What is the primary motivation for NoSQL database scalability?

Flexibility Consistency Performance Data Modeling

12. In BASE, what does "A" represent?

All Atomicity Availability Absolute

13. What is one of the main advantages of schema-less design in NoSQL databases?

Strong data consistency Flexibility in data modeling Rapid query performance Fixed data structure

14. Which type of attack attempts to guess a user's password repeatedly?

DDoS Attack Brute Force Attack SQL Injection Cross-Site Scripting (XSS)

15. What is an advantage of using a Write-Behind Cache strategy in NoSQL databases?

Data Durability Improved Write Performance Data Encryption Data Compression

16. What type of data model does Apache Solr use for its search capabilities?

Document Graph Key-Value Search-Oriented

17. Which NoSQL database uses a document-oriented data model?

MongoDB Redis Cassandra Neo4j

18. In distributed systems adhering to the CAP Theorem, what might be sacrificed during network partitions?

Availability Consistency Partition tolerance Performance

19. What is a significant advantage of NoSQL databases when it comes to handling unstructured and semi-structured data?

Flexible schema Strong consistency Relational model Complex queries

20. What is a common practice to encrypt data at rest in NoSQL databases?

Transparent Data Encryption Data Sharding Strong Passwords Data Obfuscation