A. Service-level objective.
In Site Reliability Engineering (SRE), a Service-Level Objective (SLO) defines the organization's desired level of reliability and performance for a service. SLOs are measurable targets for reliability that help guide the management and monitoring of services, ensuring that they meet the expectations of users and stakeholders. These objectives are often tied to specific Service-Level Indicators (SLIs), which are metrics that measure how well the service is performing relative to the SLOs.
Why the other options are incorrect:
B. Enhanced support: Enhanced support typically refers to a higher level of customer support, such as priority response or dedicated assistance. It is not a term related to the desired reliability or performance level in SRE practices. It’s more about support services rather than technical objectives for system performance.
C. Scalable infrastructure: Scalable infrastructure refers to the ability of a system to handle increasing load or demand by adding resources. While scalability is important for ensuring performance, it does not define the desired level of reliability or performance, which is the primary focus of an SLO.
D. Service-level indicator: Service-Level Indicators (SLIs) are metrics used to measure the performance or reliability of a service, such as uptime, latency, or error rates. While SLIs are important in the SRE process, they are not the specific term for the desired reliability and performance level. Instead, they are the metrics used to assess whether an organization is meeting its Service-Level Objectives (SLOs).
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