BaSE — Learn free · DataAI Nexus

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Questions 1–10 of 10

1. What are ACID and BaSE, and how do they relate to each other?
Question 1A. Two file formats used in HadoopB. Two query languages for NoSQL databasesC. Two stages of the same transactionD. Two data consistency models that compete on a use-case basisE. Two types of database index
2. What does BaSE stand for?
Question 2A. Backup, Security and EncryptionB. Basically Available, Soft State and Eventually ConsistentC. Batch, Stream and Event processingD. Balanced, Sharded and ElasticE. Basic Access, Standard Enforcement
3. What is the basic difference between what the ACID model and the BaSE model provide?
Question 3A. ACID provides speed; BaSE provides securityB. ACID provides storage; BaSE provides computeC. ACID provides availability; BaSE provides consistencyD. ACID provides encryption; BaSE provides compressionE. ACID provides a consistent system; BaSE provides high availability
4. What does "Basically Available" mean in the BaSE model?
Question 4A. The system is guaranteed to be available in the event of failureB. The system is available only during business hoursC. The system is available only for readsD. The system guarantees immediate consistencyE. The system is available on a single node only
5. What does "Soft State" mean in the BaSE model?
Question 5A. Data is stored in memory rather than on diskB. Data is deleted after a fixed timeC. Data values may change over time because immediate consistency is not enforced, with responsibility for consistency delegated to developersD. The schema of the data can change without noticeE. Only part of the data is written on each operation
6. What does "Eventually Consistent" imply about reading data before consistency has been achieved?
Question 6A. Reads are blocked until the data is consistentB. Reads return an errorC. Reads are still possible, although they might not reflect realityD. Reads are served from a backupE. Reads are only allowed on the primary node
7. For which kind of system is the ACID model described as a must?
Question 7A. OLTP systems, such as banking, where users cannot afford an inconsistent databaseB. Marketing and campaigning systems built on semi-structured dataC. Social media feedsD. Data lakes on object storageE. Log analytics platforms
8. Which category of databases mostly supports the BaSE model?
Question 8A. RDBMS databasesB. Mainframe databasesC. OLTP banking databasesD. Spreadsheet-based databasesE. NoSQL databases
9. Which use case is given as one that can live without ACID features?
Question 9A. Bank withdrawalsB. Marketing and campaigning on huge semi-structured or unstructured datasetsC. Payroll processingD. Stock tradingE. Airline seat reservations
10. Hadoop and Object Storage are not ACID compliant. Which product is named as providing an ACID model on top of Object Storage?
Question 10A. HiveB. HDFSC. MapReduceD. Delta Lake from DatabricksE. YARN