How long does it take to prepare for the ACE: L5 Professional - Automation?

Our record puts the exam at 240 minutes, which tells you how much is at stake in one sitting. Preparation time is usually measured in weeks rather than days for a professional exam of this size, and this one scores 2/10 for difficulty in our bank.

Which ACE: L5 Professional - Automation domain should I study first?

Arista EOS Automation, at 25% of the exam. It carries the most weight, so it is where your preparation effort returns the most points.

Should I do practice questions or read a book?

Do practice questions first for any domain you are weak in, and read for the ones you understand but cannot apply. Reading everything twice is the most common way to fail: it feels like progress and it is not. Certilum has 120 questions for this exam, scored per domain against the official weights.

What score should I have on a mock before booking the exam?

At least 90% on a timed mock in the real format. Our 80% benchmark leaves very little margin.

What is the single best way to find my weak domain?

Take one full mock, then look at the per-domain breakdown rather than the total. The total tells you whether you passed; the breakdown tells you which domain to study next, and that is the only actionable number in the result.

Study plan

How to Pass the ACE: L5 Professional - Automation Exam

ACE-L5-AUT

A study plan for the ACE: L5 Professional - Automation certification exam, built from the official domain weights instead of a generic template. Focus on hands-on labs using virtual Arista instances (vEOS) and real-world automation projects. Master Python and Ansible core modules, practice with CloudVision API, and build CI/CD pipelines. Official Arista training (ACE L5 Automation bootcamp) is recommended, supplemented by community labs and sample exams.

5 domains

120 questions

240 min

80% to pass

certilum

Study in weight order, not topic order

The plan below follows the official blueprint weights, so the order of study is the order that returns the most points.

1
Arista EOS Automation
25%
- eAPI (EOS API) – HTTP-based automation
- CloudVision Portal (CVP) configuration and provisioning
- Change control workflows using CVP
- Event-driven automation with EOS event handlers
- +1 more topics in the blueprint
30 practice questions tagged to this domain.
2
Network Programmability
20%
- OpenConfig and YANG data models
- NETCONF/gNMI for device management
- Custom tool development using Arista EOS SDK
- Telemetry streaming and data collection
- +1 more topics in the blueprint
24 practice questions tagged to this domain.
3
Automation Workflows and CI/CD
20%
- CI/CD pipeline design using Jenkins and GitLab
- Automated testing of network configuration (pytest, pyATS)
- Infrastructure as Code (IaC) with Ansible and Terraform
- Secrets management (Vault, Ansible Vault)
- +1 more topics in the blueprint
24 practice questions tagged to this domain.
4
Automation Fundamentals and Tools
20%
- Python scripting for network automation
- Ansible playbook development and inventory management
- Jinja2 templating for device configuration
- REST API concepts and HTTP methods
- +1 more topics in the blueprint
24 practice questions tagged to this domain.
5
Troubleshooting and Optimization
15%
- Debugging automation scripts and playbooks
- Performance tuning of automations (idempotency, parallelism)
- Security best practices for automation (least privilege, logging)
- Integration with external systems (IPAM, CMDB)
- +1 more topics in the blueprint
18 practice questions tagged to this domain.

Three phases, in order

Most failures are process failures, not knowledge failures.

Step 1

Phase 1 — Learn the high-weight domains

Start where the points are. The first domains on this plan carry the most weight, so a gap there costs the most. Cover the objectives, then close each topic with practice questions you actually get wrong.

Step 2

Phase 2 — Close the mid-weight domains

The middle of the blueprint is where most candidates plateau. These domains are worth less per topic than the first phase, but they add up fast, and they are the usual difference between a near miss and a clear pass.

Step 3

Phase 3 — Timed full mocks

Stop reading new material at this point. Run full-length exams under the real time limit and the real format, and use the per-domain breakdown to find which domain is still costing you the pass.

Where we put the emphasis

For ACE L5 Professional – Automation, Certilum uses practice questions that mirror production automation scenarios: writing playbooks, debugging deployments, and integrating CloudVision. Our modular approach – master Python and Ansible independently – uses interactive quizzes and diagnostic feedback.

The order matters less than the loop. Every domain you finish should end with questions you got wrong, because the mistake is the only thing you actually needed to study. On the ACE: L5 Professional - Automation that loop is worth 25% of the exam in the first block alone.