In database administration practice, is the most common source of organizational database failures the absence of a strong, well-implemented DBA function (policies, standards, backups, security, and performance management)?
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ACorrect
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BIncorrect
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COnly true for startups, not enterprises
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DCannot be generalized across industries
Answer
Correct Answer: Correct
Explanation
Introduction / Context:This question probes whether you recognize the central role of Database Administration (DBA) in operational reliability. Technology problems are often blamed on software or hardware, but root-cause analyses frequently point to gaps in administration processes such as backups, security, change control, and performance tuning.
Given Data / Assumptions:
- An organization operates one or more production databases.
- DBA responsibilities include backup/restore, disaster recovery planning, security policies, monitoring, capacity planning, change management, and standards enforcement.
- Failures include data loss, prolonged outages, security breaches, and severe performance degradations.
Concept / Approach:DB reliability is a socio-technical outcome. Robust processes (regular, tested backups; well-defined recovery point/time objectives; patching; access control; index and query management) are decisive. Where these are weak or absent, even a strong DBMS can fail dramatically. Hence, the absence of a strong DBA function is a common—often the most common—cause of database failures.
Step-by-Step Solution:
Identify failures (data loss, downtime, breach).Map each to preventative DBA practices (backups/DR, HA, security checks).Note that weak or missing practices correlate with higher failure incidence.Conclude that the statement is correct as a generalization.Verification / Alternative check:Review postmortems: many cite untested backups, missing monitoring, misconfigured replication, or uncontrolled schema changes—all domain of DBA governance.
Why Other Options Are Wrong:
- Incorrect/industry caveat: While factors vary, administration gaps are consistently high-impact across sectors.
- “Startups only” is unfounded; large enterprises also fail without strong DBA processes.
Common Pitfalls:Over-reliance on vendor defaults; assuming cloud-managed services eliminate DBA responsibilities; neglecting restore tests.
Final Answer:Correct