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ITIL4F ITIL Management Practices Practice Question

Which document defines the level of service expected between a service provider and a customer?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Service Level Agreement (SLA)

A Service Level Agreement (SLA) defines the level of service expected between a service provider and a customer. Option A (Service catalogue) is a list of services, not an agreement. Option B (Operational Level Agreement) is an agreement between internal groups within the same organization. Option D (Underpinning Contract) is an agreement between the provider and a supplier.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Service catalogue

    Why it's wrong here

    The service catalogue is a customer-facing document that provides information about the services available from the service provider, including descriptions, eligibility, and how to request them. While it outlines what services exist, it does not specify the performance targets, availability metrics, or quality standards that define the expected level of service for those offerings. Its primary role is to present a portfolio of services, not to contractually define their operational performance.

  • Operational Level Agreement (OLA)

    Why it's wrong here

    An Operational Level Agreement (OLA) is an internal agreement established between different internal groups or departments within the same service provider organization. Its purpose is to define the specific responsibilities, targets, and dependencies that each internal team must meet to collectively support the delivery of an agreed-upon Service Level Agreement (SLA) to the customer. This ensures internal alignment and coordination, but it is not directly visible or binding to the external customer.

  • Service Level Agreement (SLA)

    Why this is correct

    A Service Level Agreement (SLA) is a formal, documented agreement between a service provider and a customer that precisely defines the services to be provided and the specific, measurable level of service expected. It outlines key performance indicators (KPIs), availability targets, responsibilities of both parties, and often includes remedies or penalties for non-compliance. This document directly addresses the question by establishing the mutually agreed-upon service quality and performance benchmarks.

  • Underpinning Contract (UC)

    Why it's wrong here

    An Underpinning Contract (UC) is a legally binding agreement between a service provider and an external third-party supplier for the provision of goods or services that are essential for the service provider to deliver its own services to the customer. While UCs are critical for ensuring the external components of a service meet the required standards, they are not direct agreements with the end customer. The UC focuses on supplier performance to support the SLA, rather than defining the customer's expected service level directly.

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