____ implies that the performance of functions such as adding sites,changing versions of DBMSs,creating backups,and modifying hardware should not require planned shutdowns of the entire distributed database.
A) Continuous operation
B) Local autonomy
C) Location transparency
D) Fragmentation transparency

Question

____ implies that the performance of functions such as adding sites,changing versions of DBMSs,creating backups,and modifying hardware should not require planned shutdowns of the entire distributed database.​
A) ​Continuous operation
B) ​Local autonomy
C) ​Location transparency
D) ​Fragmentation transparency

Quizplus · Accepted Answer

Continuous operation means that the database should be available for use 24/7 without planned shutdowns for routine maintenance tasks such as updates, backups, or hardware modifications. Therefore, this option is the only one that accurately describes this requirement. Local autonomy refers to the ability of a distributed database to operate independently, location transparency refers to the ability to access data regardless of its physical location, and fragmentation transparency refers to the ability to distribute data across multiple sites without the user being aware of it. While these concepts are important for a distributed database, they do not address the specific requirement of uninterrupted operation during routine maintenance tasks.

____ Implies That the Performance of Functions Such as Adding