正解:B,D
Vendor lock-in occurs when a client is overly dependent on a vendor, limiting flexibility. Risks include:
Option B:Vendors changing offerings (e.g., features, pricing) can disrupt the client, a key lock-in risk.
Option D:Decreased quality of service may result from reliance on a single vendor without alternatives.
Option A:Seamless data movement is a benefit, not a risk.
Option C:Sufficient service is neutral or positive, not a risk.
Option E:Multicloud is hindered by lock-in, not a risk of it.
Option F:Increased interoperability contradicts lock-in's limitations.
Reference:CompTIA SecurityX CAS-005 Domain 1: Risk Management - Vendor Risk Assessment.