IBM
C2030-136 · Question #52
Using Brewer's CAP theorem as a guide for choosing between alternative data storage technologies, which two distributed system properties does Apache HBase (part of Hadoop) guarantee?
The correct answer is A. Consistency - all nodes see the same data at the same time. C. Atomicity - if one part of a transaction fails, the entire transaction fails. See the full explanation below for the reasoning.
Question
Using Brewer's CAP theorem as a guide for choosing between alternative data storage technologies, which two distributed system properties does Apache HBase (part of Hadoop) guarantee?
Options
- AConsistency - all nodes see the same data at the same time.
- BConcurrency control - correct results for concurrent operations.
- CAtomicity - if one part of a transaction fails, the entire transaction fails.
- DPartition tolerance - the system continues to operate despite arbitrary message loss.
- EAvailability - every request receives a response about whether it was successful or failed
How the community answered
(20 responses)- A75% (15)
- B5% (1)
- D15% (3)
- E5% (1)
Community Discussion
No community discussion yet for this question.