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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
Q664: Which isolation level prevents dirty reads but allows non-repeatable reads?
Read Uncommitted
Read Committed
Repeatable Read
Serializable
Snapshot
Q665: In Oracle, which process writes modified blocks from buffer cache to data files?
SMON
DBWR
LGWR
CKPT
PMON
Q666: What does ACID stand for in databases?
Atomicity, Consistency, Isolation, Durability
Accuracy, Control, Integrity, Distribution
Access, Consistency, Integration, Durability
Atomicity, Concurrency, Isolation, Data
Accuracy, Completeness, Integrity, Durability
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