📋 2026 Edition · Updated November 2026

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Study Guide 2026

Q: How long does it take to prepare for the Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) exam?

Most candidates with relevant background take 4-8 weeks studying 1-2 hours daily. Beginners may need longer depending on their current knowledge and experience.

Q: What is included in the Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) study guide?

The study guide covers the exam syllabus, domain-wise topics, study roadmap, preparation strategy, exam tips and links to practice, mock exams, readiness testing and other preparation resources.

Q: Is this Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) study guide enough to pass the exam?

The study guide is designed to organize your preparation around the exam syllabus and domains. Candidates should also use practice questions and timed simulations to test their ability to apply what they have learned.

Q: Can beginners use this Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) study guide?

Yes. The guide can be used to understand the exam domains, identify the topics to study and follow a structured preparation roadmap.

Q: How many practice questions should I do?

There is no universal number that guarantees readiness. Focus on understanding why answers are correct or incorrect and use timed practice to identify gaps in your preparation.

Q: How can I identify my weak areas?

Use the Edureify readiness diagnostic to assess your preparation and identify weaker exam domains before deciding where to spend additional study time.

Complete exam coverage for the Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26): syllabus, domains, key topics, study plan and practical exam preparation strategy.

Questions

90 min

Duration

Passing score

Domains

Start Practice Test & Get My Study Plan Take Readiness Diagnostic

Your readiness score - take the free diagnostic to unlock your personalised analysis

Overall readiness (locked)

Applying Large Language Model Concepts

Applying Agentic AI Concepts

Configuring OCI Enterprise AI Models

Building OCI Enterprise AI Agents

Building and Deploying Hosted Agents

Governing and Optimizing OCI Enterprise AI

Run 10-Minute Free Diagnostic →

Exam at a Glance

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Exam Overview

Key facts about the Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) exam structure, format and scoring.

🆔

oci-generative-ai-professional

Exam code

📝

50 questions

Total questions

⏱

90 minutes

Duration

🎯

Passing score

📋

6 domains

Exam domains

🏆

Certification

Credential type

ℹ️

Scoring method: Results are reported as a percentage of questions answered correctly; candidates need 68% (34 of 50) to pass. Results appear in Oracle CertView after the exam.. The exam may include unscored pilot questions - treat every question seriously.

Focus Areas

What should you study for the Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) exam?

Start with the domains that make up the Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) exam. Use the detailed syllabus below to work through the individual topics.

⚠️

Common mistake: Candidates often memorise terminology but struggle with scenario-based questions. Focus on when to use what, not just what exists.

🔐

Applying Large Language Model Concepts (10%)

Explaining how large language models work and how prompting and customization shape their output.

🏗

Applying Agentic AI Concepts (20%)

Applying agent design concepts such as reasoning patterns, tool use, memory and multi-agent orchestration.

⚡

Configuring OCI Enterprise AI Models (20%)

Selecting, customizing and serving models in OCI Enterprise AI.

💰

Building OCI Enterprise AI Agents (25%)

Building agents on OCI with the Responses API, tools and retrieval.

🔄

Building and Deploying Hosted Agents (15%)

Packaging and deploying agents as hosted deployments on OCI.

📊

Governing and Optimizing OCI Enterprise AI (10%)

Applying guardrails, observability and cost controls to production AI workloads.

Full Syllabus

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Exam Syllabus and Topics

The Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) exam is divided into 6 domains. Each domain covers specific skills and topics. Expand a domain to see the detailed syllabus.

LLM Architecture and Behavior

Transformer and decoder-only model basics

Tokens, context windows and embeddings

Decoding settings: temperature, top-p, top-k

Hallucination and grounding

Prompting and Customization

Prompt engineering and in-context learning

Retrieval-augmented generation concepts

Fine-tuning vs. prompting trade-offs

Choosing a customization approach

~5 questions

10 marks

10% of exam weight

Agent Fundamentals

Agents vs. chat applications

Reasoning patterns such as ReAct and planning

Tool and function calling

Short-term and long-term memory

Agent Protocols and Orchestration

Model Context Protocol (MCP) tools

Agent-to-agent communication patterns

Multi-agent orchestration

Human-in-the-loop checkpoints

~10 questions

20 marks

20% of exam weight

Model Selection and Access

Pretrained chat and embedding models on OCI

On-demand vs. dedicated AI clusters

OpenAI-compatible OCI Responses API

Model endpoints and parameters

Model Customization

Fine-tuning methods such as LoRA and T-Few

Preparing training data

Hosting custom models on dedicated clusters

Evaluating fine-tuned models

~10 questions

20 marks

20% of exam weight

Agents with the Responses API

Agent loops with the Responses API

Defining function tools

Built-in tools and code execution

Conversation state management

Retrieval and Tool Integration

RAG with vector stores and knowledge bases

SQL and database tools

MCP server integration

Error handling and retries for tools

~13 questions

25 marks

25% of exam weight

Hosted Agent Deployments

Hosted agent application packaging

Deployment configuration and scaling

Endpoints and authentication

Versioning and updates

Integration and Operations

Connecting hosted agents to applications

IAM policies and compartments

Logging and monitoring deployments

Troubleshooting deployments

~7 questions

15 marks

15% of exam weight

Guardrails and Responsible AI

Content moderation guardrails

Prompt injection protection

PII detection and handling

Data privacy and security on OCI

Observability and Cost

Tracing and evaluating agent runs

Usage metrics and monitoring

Cost optimization choices

Quotas and limits

~5 questions

10 marks

10% of exam weight

Study Plan

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Structured Study Roadmap

Choose a preparation timeline based on how much time you have available. For a plan based on your actual readiness and weak domains, use the personalised Edureify study experience. Get My Training Plan →

Weeks 1-2

Core Services + Highest-Weighted Domain

Deep-dive into the most heavily tested domain. Spend more time here when its exam weight is significantly higher.

Official exam guideDomain 1 completeCore conceptsPractice questions

Week 3

Domain 2 - Hands-on Practice

Focus on scenario-based study and reinforce concepts through practical application where applicable.

Domain 2Scenario walkthroughsHands-on practicePractice questions

Week 4

Domain 3 - Deeper Concepts

Work through complex concepts and decision scenarios.

Domain 3Scenario drillsPractice examReview

Week 5

Remaining Domains + Weak Area Targeting

Identify your weaker domains and spend focused time closing those gaps.

Remaining domainsDiagnosticTargeted reviewStudy notes

Week 6

Full Simulations + Final Preparation

Use timed simulations to test your preparation and review the reasoning behind incorrect answers.

Full mock examsWrong-answer reviewFinal reviewExam logistics

Exam Strategy

Tips to pass Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) on your first attempt

Practical advice for applying what you know, managing questions and preparing for exam conditions.

🗓

This exam replaced 1Z0-1127-25 (OCI Generative AI Professional); study from the 2026 'Become an OCI Enterprise AI Professional' learning path, not older model-only material.

🔍

Spend most time on building agents with the OCI Responses API and tools; it is the largest topic area.

⏭

Get hands-on in an OCI tenancy: call models, deploy a hosted agent and configure guardrails before exam day.

📊

With a 68% pass mark on 50 questions you can miss only 16, so cover governance and cost topics too.

🔁

Pace at under two minutes per question and flag long scenario items for review.

Recommended Resources

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Study Resources

Use a focused set of resources alongside the study guide rather than trying to study from everything available.

Official

Official Exam Guide

Start with the authoritative exam objectives and blueprint.

→ Vendor website

Practice Tests

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Practice Test

Practice questions with explanations and domain-level performance analysis.

→ Start free practice test

Mock Exam

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Mock Exam

Timed preparation under realistic exam-style conditions.

→ Take free mock exam

Training

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Certification Training

Structured preparation with personalised learning support and adaptive practice.

→ Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) certification online training

AI Tutor

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) AI Tutor

Get help understanding concepts and work on weak areas with AI-powered learning support.

→ Try Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) AI tutor

Reference

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Cheat Sheet

Quick-reference summaries for final revision.

→ Get free cheat sheet

Diagnostic

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Readiness Test

Assess your preparation and identify weaker exam domains.

→ Check my readiness

⚠️

Avoid brain dumps. Sites selling real or stolen exam questions may violate certification-provider rules and can leave candidates studying outdated material.

Reviews

What candidates say after passing

FAQ

Frequently asked questions about Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26)

How long does it take to prepare for the Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) exam?

Most candidates with relevant background can structure their preparation over several weeks, depending on their existing knowledge, available study time and exam difficulty. Use the study roadmap above as a starting point and use the readiness diagnostic to identify where you need more preparation.

What is included in the Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) study guide?

The guide covers the exam overview, domains, detailed syllabus and topics, study roadmap, exam preparation tips and links to practice, mock, readiness, cheat-sheet, AI Tutor and training resources.

Is this Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) study guide enough to pass the exam?

The guide is designed to organize your preparation around the exam syllabus. You should combine it with practice questions and timed simulations so that you can test both your knowledge and your ability to apply it.

Can beginners use this Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) study guide?

Yes. Start with the exam overview and domain breakdown, then work through the detailed topics using the study roadmap. Candidates with less experience may need additional time for foundational concepts.

How can I identify my weak areas?

Take the Edureify readiness diagnostic to assess your preparation and identify the domains where you need to focus more.

How does AI improve my preparation?

Edureify AI can help explain concepts, identify weaker areas from practice performance and support a more personalised preparation process.

Ready to prepare for Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26)?

Find your weak areas and build a more focused preparation plan.

Start My Free Diagnostic →

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Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Study Guide 2026

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Exam Overview

What should you study for the Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) exam?

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Exam Syllabus and Topics

Know if you'll pass Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) before exam day

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Structured Study Roadmap

Tips to pass Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) on your first attempt

Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26) Study Resources

What candidates say after passing

Frequently asked questions about Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26)

Ready to prepare for Oracle Cloud Infrastructure Enterprise AI Professional (1Z0-1158-26)?

Related Artificial Intelligence & Machine Learning Certification Study Guides