Advanced
Database Management Systems
Q95 / 100
What is the Google Spanner database and its significance?
Correct! Well done.
Incorrect.
The correct answer is B) A globally distributed relational database achieving external consistency using TrueTime (atomic clocks + GPS) to assign commit timestamps, enabling ACID across data centers
B
Correct Answer
A globally distributed relational database achieving external consistency using TrueTime (atomic clocks + GPS) to assign commit timestamps, enabling ACID across data centers
Explanation
Spanner (Corbett et al., 2012) provides global SQL with ACID transactions using Paxos consensus and TrueTime. TrueTime bounds clock uncertainty, enabling globally consistent reads and serializable distributed transactions.
Progress
95/100