MS-900 Describe cloud concepts Practice Question
During requirements gathering, an IT manager says the organization must keep services available during a hardware failure. Cloud concept or benefit best matches this requirement?
⚠ Common exam trap
A common mix-up: candidates confuse high availability with disaster recovery, but the question specifically asks about keeping services available during a hardware failure, which is the definition of high availability, not the broader recovery from a major outage.
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
✓
High availability
High availability (C) is the correct cloud concept because it directly addresses the requirement to keep services operational during hardware failure. In Microsoft 365, high availability is achieved through redundant infrastructure, such as multiple server instances across different Azure availability zones, and automatic failover mechanisms that ensure service continuity without manual intervention.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Microsoft Planner
Why it's wrong here
Microsoft Planner is a task and project management service that lets users create plans, assign work items, and track progress on a board-based interface. It is a productivity tool for organizing work, not a design principle or infrastructure capability that ensures services stay online during a component failure. Its presence in Microsoft 365 may cause confusion, but neither Planner nor any other individual workload determines the cloud provider's ability to meet an availability requirement.
- ✗
Data Loss Prevention (DLP)
Why it's wrong here
Data Loss Prevention (DLP) is a security and compliance feature that discovers, monitors, and protects sensitive information by applying policies to emails, documents, and chats based on content patterns and data classification. DLP can block, deny, or encrypt data that violates a defined policy, but it has no function in maintaining service uptime or mitigating infrastructure faults. It is a data-centric control, whereas the IT manager's statement about being able to access services despite failures is an infrastructure-centric requirement.
- ✓
High availability
Why this is correct
High availability is the cloud characteristic that keeps services operational and user-accessible even when specific components, such as servers, disks, or network paths, fail. It is implemented through redundant design, automatic failover, load balancing, and continuous health monitoring that routes traffic away from unhealthy nodes. Microsoft 365 contractually guarantees a monthly uptime percentage through its Service Level Agreement, which is typically expressed in 'nines' (e.g., 99.9%), directly matching an IT manager's expectation that 'this needs to be available no matter what.'
- ✗
Sensitivity labels
Why it's wrong here
Sensitivity labels are metadata applied to content in Microsoft 365 to classify its level of confidentiality (e.g., Public, General, Confidential, Highly Confidential) and to enforce protective actions like encryption, access restrictions, and visual markings. These labels are defined in the Microsoft Purview compliance portal and are attached to data itself, not to the underlying infrastructure. While they help prevent unauthorized access to content, they do not influence service availability or uptime, making them unrelated to a discussion about accessing systems despite component failures.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This MS-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MS-900 exam.