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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
Q46: Which recovery model in SQL Server minimally logs operations?
Full
Bulk-logged
Simple
Incremental
Differential
Q47: Which isolation level prevents dirty reads but allows non-repeatable reads?
Read Uncommitted
Read Committed
Repeatable Read
Serializable
Snapshot
Q48: What is the main disadvantage of database sharding?
Improves scalability
Increases latency
Simplifies design
Reduces cost
Enhances security
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