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System Design Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
medium
System Design
Why can't a database simply be scaled horizontally the same way a stateless application server can?
A
Databases are always more expensive
B
A database holds actual state, so a write to one instance must become consistently visible wherever that data is subsequently read — you can't just round-robin writes across interchangeable copies
C
Databases don't support networking
D
There is no real difference — the same approach works fine
Check Answer