The Oracle Cloud Infrastructure 2025 Architect Associate exam (1Z0-1072-25) validates your ability to design, deploy, and manage solutions on Oracle Cloud Infrastructure. This certification is ideal for cloud architects, infrastructure engineers, and IT professionals who want to demonstrate hands-on expertise with OCI services. This page provides a structured study roadmap, topic overview, and practical preparation guidance to help you pass with confidence.
Use this topic map to guide your study for Oracle 1Z0-1072-25 (Oracle Cloud Infrastructure 2025 Architect Associate) within the Oracle Cloud and Oracle Cloud Infrastructure path.
The 1Z0-1072-25 exam uses multiple-choice and scenario-based questions to assess both theoretical knowledge and practical decision-making. Questions progress in difficulty and require you to apply concepts to real-world OCI deployment situations.
Questions are designed to reflect actual architect responsibilities, ensuring your certification demonstrates practical capability.
Effective preparation requires mapping each topic to focused study sessions and reinforcing concepts through practice scenarios. Allocate time proportionally to your weaker areas while maintaining breadth across all four domains.
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Compute and Networking typically account for a larger percentage of exam questions, as they form the foundation of most OCI architectures. However, all four domains, Compute, Networking, Storage, and Identity and Access Management, are equally important for designing production-ready solutions. Allocate study time proportionally but ensure you develop competency across all areas.
In practice, these domains are interconnected. Compute instances run on networks you design, store data in storage services you configure, and are accessed through IAM policies you enforce. A typical workflow involves creating a network topology, launching compute instances within that network, attaching storage volumes, and then restricting access via compartments and IAM policies. Understanding these dependencies helps you make holistic architectural decisions.
Hands-on experience significantly improves retention and confidence. Prioritize labs that cover creating and managing compute instances, configuring virtual cloud networks with security lists, provisioning block and object storage, and setting up IAM policies and compartments. Even if you have limited lab access, working through Oracle's free tier environment or practice scenarios in study materials will strengthen your ability to apply concepts under exam conditions.
Frequent errors include misunderstanding the scope of IAM compartments, confusing security list rules with network security group behavior, selecting incorrect instance shapes for workload requirements, and overlooking cost optimization in architectural decisions. Many candidates also rush through scenario questions without fully analyzing all requirements. Read each question carefully, identify what the scenario is asking, and eliminate obviously incorrect options before selecting your answer.
In the final week, take at least one full-length timed practice test to assess readiness and identify weak spots. Review explanations for any missed questions, paying special attention to why you selected the wrong answer. Spend remaining time on targeted review of your lowest-scoring topic areas rather than re-reading entire study materials. Get adequate sleep the night before the exam to ensure mental clarity during the test.
Which TWO options will accomplish a fully redundant connection from an on-premises data center to a Virtual Cloud Network (VCN) in the us-ashburn-1 region?
For a fully redundant connection from an on-premises data center to a VCN in the OCI us-ashburn-1 region, it is important to ensure high availability and fault tolerance. Here's how each option contributes to redundancy:
Option B: Two FastConnect Virtual Circuits:
FastConnect provides a dedicated, private connection with higher bandwidth and more consistent performance compared to a VPN. To achieve redundancy, you can configure two FastConnect circuits in the same region (us-ashburn-1), each terminated on diverse hardware on-premises. This setup ensures that even if one circuit or its associated hardware fails, the other circuit can maintain the connection. This ensures no single point of failure in the connectivity to OCI. Thus, option B is correct.
Option D: FastConnect and Site-to-Site VPN:
Another approach to redundancy is to have a mix of connection types. By setting up one FastConnect circuit and one Site-to-Site VPN, both terminating in the same region (us-ashburn-1), you create a diverse connection path. If the FastConnect connection fails, traffic can automatically route through the VPN connection, maintaining connectivity. This setup adds an extra layer of redundancy, making option D correct as well.
Incorrect Options:
Option A: Only configuring a Site-to-Site VPN from a single on-premises CPE does not provide redundancy because it involves just one connection path. If that connection or the CPE fails, there would be no fallback.
Option C: Configuring FastConnect circuits to different regions (us-ashburn-1 and us-phoenix-1) does not provide redundancy within a single region but rather across regions, which is not required for regional redundancy.
Relevant OCI Documentation:
OCI FastConnect Overview
Using Site-to-Site VPN and FastConnect for Redundancy
These references offer more detailed information on setting up redundant connections and the benefits of each connection type within OCI.
Which TWO statements are NOT correct regarding the Oracle Cloud Infrastructure (OCI) burstable instances?
The following statements about OCI burstable instances are NOT correct:
A . Burstable instances cost less than regular instances: This is incorrect because burstable instances are not necessarily cheaper; the cost depends on the baseline utilization. While they allow for cost efficiency when running at a lower CPU baseline, they can become more expensive if frequently bursting above the baseline.
B . Burstable instances are charged according to the baseline OCPU: This is incorrect because burstable instances are billed based on actual OCPU usage, which includes both baseline and burst usage. If an instance frequently operates above its baseline, the cost will reflect this higher usage.
Correct Concepts:
C . Burstable instances can temporarily use more CPU than their baseline if the average CPU utilization is below the baseline.
D . Baseline utilization is a fraction of each CPU core, which determines the level of consistent performance available without bursting.
Oracle Cloud Infrastructure Documentation: Burstable Instances
How would you allow access to FSS for a DB System with read-only permissions?
To allow access to Oracle Cloud Infrastructure (OCI) File Storage Service (FSS) for a Database (DB) System with read-only permissions, you should create an NFS export option that specifies READ_ONLY access.
NFS Export Options: These options define the access permissions (read/write or read-only) for clients connecting to the file system. By setting the export option to READ_ONLY, you ensure that the DB System can only read from the FSS and cannot modify or delete files.
Oracle Cloud Infrastructure Documentation: File Storage Service Export Options
Which statement is true about pre-authenticated requests?
In Oracle Cloud Infrastructure (OCI), pre-authenticated requests (PARs) allow users to grant access to specific objects in Object Storage without requiring the recipient to have an OCI account or credentials. This feature is useful for sharing objects securely without exposing broader access.
Cannot Edit a PAR: Once a pre-authenticated request is created, you cannot edit it. If you need to change the settings, such as the expiration date or the object being shared, you must delete the existing PAR and create a new one.
Other Statements:
Deleting a PAR does indeed revoke access immediately, contradicting option B.
Providing OCI credentials (C) is not required for using PARs. The purpose of PARs is to avoid sharing credentials.
Deleting Buckets (D): PARs are designed for accessing objects, not for administrative actions like deleting buckets.
Relevant OCI Documentation:
Managing Pre-Authenticated Requests
This reference outlines the features and limitations of pre-authenticated requests, including the inability to edit them once created.
Which THREE protocols are supported by the Oracle Cloud Infrastructure (OCI) private Network Load Balancers?
The OCI Private Network Load Balancer supports multiple protocols for managing traffic efficiently across your instances within a private subnet. Specifically, it supports:
UDP (User Datagram Protocol): Commonly used for applications that require fast, connectionless communication, such as video streaming or DNS services.
TCP (Transmission Control Protocol): A reliable, connection-oriented protocol, widely used for web traffic and other applications requiring data integrity.
HTTP (Hypertext Transfer Protocol): Frequently used for web traffic, it is an application-layer protocol built on top of TCP and enables communication between web browsers and servers.
The combination of these protocols allows the OCI Network Load Balancer to manage diverse workloads, including web services and real-time applications.
For reference:
OCI Load Balancer Documentation
