What is the purpose of a service level objective (SLO) and how it differs from an SLA?

• A. SLO is a formal agreement covering multiple targets; SLA is a specific measurable target.
• B. SLA is a specific target; SLO is a contract with remedies.
• C. SLO is a general goal; SLA documents performance metrics.
• D. SLO is a specific measurable target; SLA is a formal agreement that includes multiple SLOs and remedies.

Answer: (D)