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Database Administrator (DBA)
Database Administrator (DBA) is an IT professional responsible for managing, maintaining, and securing an organization's databases to ensure data is reliable, efficient, and accessible to authorized users
Quiz Questions
Q943: Which isolation level prevents dirty reads but allows non-repeatable reads?
Read Uncommitted
Read Committed
Repeatable Read
Serializable
Snapshot
Q944: Which recovery model in SQL Server minimally logs operations?
Full
Bulk-logged
Simple
Incremental
Differential
Q945: In Oracle, which process writes modified blocks from buffer cache to data files?
SMON
DBWR
LGWR
CKPT
PMON
