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Databases Quiz Practice
Active Recall Drill Session
← Exit Session
Question 1 of 1
medium
Databases
What is the default isolation level of MongoDB transactions, and what does it prevent?
A
Read Uncommitted; it prevents dirty reads
B
Read Committed; it prevents dirty reads by ensuring transactions can only read committed document states
C
Serializable; it completely prevents concurrent transaction interleaving
D
Repeatable Read; it prevents phantom reads
Check Answer