Practice for the Microsoft Azure Fundamentals (AZ-900) exam with 15 exam-style practice questions, instant answer reveals, and concise explanations of every correct answer. Topics include: Which Azure Storage option is the lowest-cost NoSQL storage option for structured, non-relational data?. Follow @CertPunch and visit certpunch.com for more certification practice exams and study content.
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What you will practice
- Which Azure Storage option is the lowest-cost NoSQL storage option for structured, non-relational data?
- What is the core principle of Zero Trust security?
- One of the benefits of cloud computing is that you can use a command-line script to create or destroy virtual…
- How does high availability in cloud computing minimize downtime?
- In which storage redundancy option does Azure keep three copies of your files across all three zones of a sin…
- What is the purpose of the "Owner" role in Azure RBAC?
Answers and explanations
Tap a question to expand the answer and the exam reasoning. Try to commit to your own pick first.
Q1. Which Azure Storage option is the lowest-cost NoSQL storage option for structured, non-relational data?
Answer: B. Table Storage
Azure Table Storage provides a highly available, low-cost NoSQL key-attribute store for structured, non-relational data. While Cosmos DB also stores non-relational data, Table Storage is the budget-friendly baseline option.
Q2. What is the core principle of Zero Trust security?
Answer: A. Never trust, always verify.
The Zero Trust model operates on the strict rule to never trust and always verify, regardless of whether a request originates from inside or outside the corporate network. This enforces continuous authentication and strict access limits.
Q3. One of the benefits of cloud computing is that you can use a command-line script to create or destroy virtual machines in a programmatic way. This is an example of what type of manageability benefit?
Answer: B. Management in the cloud
Management in the cloud refers to how you interact with and control your cloud resources programmatically, such as using scripts or APIs. Management of the cloud instead refers to operating the underlying cloud platform itself.
Q4. How does high availability in cloud computing minimize downtime?
Answer: C. By automatically replicating resources across multiple regions or zones
High availability minimizes downtime by automatically replicating resources across multiple regions or zones. This redundancy ensures seamless failover. Limiting resource usage during peak times relates to cost management or throttling, not fault tolerance.
Q5. In which storage redundancy option does Azure keep three copies of your files across all three zones of a single region?
Answer: D. ZRS
Zone-redundant storage keeps three copies of your data across three different availability zones in a single region. If a single zone fails, your storage remains accessible. Locally redundant storage keeps copies in a single datacenter.
Q6. What is the purpose of the "Owner" role in Azure RBAC?
Answer: A. To manage Azure resources including delegating user permissions
The Owner role grants full access to manage all resources, including the ability to assign permissions to other users. The Contributor role also allows full resource management but specifically lacks the ability to delegate access.
Q7. In which cloud environment does the cloud provider manage the operating system, meaning you do not have the ability to determine the exact version of Windows or Linux you are using?
Answer: C. PaaS
In a Platform as a Service environment, the cloud provider manages the underlying operating system, middleware, and runtime. You focus only on your application code. IaaS options like virtual machines require you to handle operating system maintenance.
Q8. Can management groups be nested?
Answer: A. Yes
Management groups can absolutely be nested to create a hierarchical organizational structure. You can build a tree of management groups and subscriptions to efficiently apply policies and access controls across your entire organization.
Q9. Which type of scaling in cloud computing allows for practically unlimited growth by adding more instances of resources?
Answer: A. Scaling out (horizontal scaling)
Scaling out adds more instances of resources like virtual machines to handle increased workloads. Scaling up simply adds more power like CPU or RAM to a single virtual machine, which has hardware limits.
Q10. Multiple virtual machines in the same availability set are deployed across multiple update domains. What do update domains help you protect against?
Answer: A. Planned downtime
Update domains protect against planned downtime by ensuring Azure updates and restarts virtual machine groups sequentially, never all at once. Fault domains, on the other hand, are the mechanism used to guard against unplanned hardware failures.
Q11. What is the role of fault tolerance in Azure's reliability strategy?
Answer: A. To minimize the impact of individual component failures.
Fault tolerance relies on redundancy to minimize the operational impact when individual hardware or software components fail. Remember that fault tolerance differs from disaster recovery, which focuses on restoring entire systems after massive regional outages.
Q12. Which of the following statements about Azure Availability Zones is true?
Answer: B. Availability Zones are physically separate locations within the same Azure region.
Availability Zones are distinct physical data centers within a single Azure region, providing protection against local hardware failures. They do not replicate data across tenants, and regions typically contain three zones, not two.
Q13. Which phrase best describes the property of scalability?
Answer: C. The ability of a system to handle increased workload by adding resources dynamically.
Scalability is the ability of a system to handle increased workload by dynamically adding resources, such as compute or storage. Contrast this with reliability, which measures a system's ability to stay operational and avoid downtime.
Q14. Microsoft Entra Domain Services is a managed domain service that can be used to:
Answer: A. Extend AD DS to the cloud.
Microsoft Entra Domain Services extends traditional Active Directory Domain Services capabilities to the cloud. It provides managed domain services like domain join and group policy without needing to deploy domain controllers manually.
Q15. What is the main advantage of using spot instances in the cloud?
Answer: A. They provide significant cost savings.
Spot instances offer significant cost savings compared to standard pay-as-you-go pricing by utilizing unused Azure capacity. The tradeoff is that Azure can evict them at any time, making option B factually incorrect.
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