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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
Q835: What is the main disadvantage of database sharding?
Improves scalability
Increases latency
Simplifies design
Reduces cost
Enhances security
Q836: Which type of database is Oracle?
Relational
Hierarchical
Network
Key-Value
Graph
Q837: Which SQL clause is used to filter results?
WHERE
FROM
GROUP BY
ORDER BY
JOIN
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