The presence of a single point of knowledge is a significant risk in agile teams. According to the PMI Agile Practice Guide (Section 4.3.3: Team Structure and Cross-functionality) and Mike Griffiths’ PMI-ACP Exam Prep Book (Chapter 3: Team Performance), agile teams should avoid role silos and promote knowledge sharing. Adding another database administrator helps with both workload distribution and knowledge retention through pairing or mentoring.
Option C is correct: it ensures redundancy and knowledge spread, reducing project risk.
Option A does not address knowledge transfer or team development.
Option B removes the knowledge resource, worsening the risk.
Option D limits knowledge-sharing and still creates a bottleneck.
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