Skip To Content

CORE - Cloud Operational Readiness Evaluations

An advanced approach to traditional certification exams.

Why Open-Book?

CORE is designed to be relevant to troubleshooting scenarios you may come across in your work. Open-book encourages the use of additional resources to successfully complete the evaluation.

Leverage the Tools at Hand

Arista’s course documentation and design guides, saved configuration from course labs, and designs used for customer deployments, are examples of resources successful candidates have used. Everything is at your disposal for this exam — except another person to help you.

Timed Evaluations

In addition to the various resources at your disposal, appropriate time constraints are applied to fully assess your understanding. All evaluations have a specified time limit to complete for grading. Additional explanations and details are provided upon registration.

Individual CORE Time Limits

  • ACE:L1 = 2 hours
  • ACE:L2 = 4 hours
  • ACE:L3 = 4 hours
  • ACE:L4 = 5 hours
  • ACE:L5 = 4 hours
  • ACE:CVP = 2 hours
What is CORE

CORE assures individuals and teams that they command the skills and experience the industry desires.

CORE recognizes knowledge gained from a course and verifies proficiency in the subject matter, ultimately confirming the learning experience.


CORE Level 1st Attempt Follow-up attempts
ACE:L1-ACE:L2 $250 USD $175 USD
ACE:L3-ACE:L5 $450 USD $300 USD
ACE:L6 $750 USD $500 USD
ACE:L7 $1500 USD $1000 USD
ACE:CVP $250 USD $175 USD
CORE Renewals
  • Arista encourages certified individuals to remain current through a unique renewal program, without retesting. Instead, this program is based on a point system, challenging individuals to earn points through various learning tools available and actively participating within the Arista community.
  • Arista Training is driven to follow our guiding principles at Arista which is quality, quality, quality. With this in mind, we have decided to postpone our CORE renewal program until Q2 2024 to ensure we can bring the best possible model to market for our customers.

If you have received an ACE certification between the dates of Jun 1, 2021 and Dec 31, 2023, you will be exempt from renewal until Dec 31 2024.

What Happens in a CORE Certification?

A CORE practical simulates a visit to a customer site to troubleshoot an issue. You wouldn’t be expected to do it from memory on-site, so why should you have to memorize outdated terms or commands for an exam? Arista’s CORE certifications are always ‘open-book’.

For Individuals

CORE can help you get a raise, find a new job, or give you the confidence and opportunity to take the next step in your engineering journey.

For Companies

When your team must have practical experience and comprehensive expertise with a desired skill set, they need CORE.


For too long, multiple-choice exams have been the industry norm to test and rank basic competence. A prevalent problem with this approach is that answers may simply be memorized.

Real-World Simulations

Arista’s CORE approach assesses your understanding through practical evaluations and verification for all courses.

  • CORE certifications are proctored via Zoom
  • No special equipment needed
  • We rely on integrity and honesty – no locking down screens or cameras necessary

Assessing the Evaluation

Evaluations are based on task completion (results-based) and verified by an Arista engineer

Completeness, Not Perfection

We understand that an IP address typo can keep a network from running correctly and recognize the time needed to find such a mistake in a live environment is not available during a timed evaluation. Therefore, evaluations are based on overall completeness, not perfection. It is in your best interest to submit a working environment at the end of the exam, however, you will not be penalized for minor oversights and typos that keep the network from working properly.

Approach is Key

Our intent with the exam process is to offer each candidate a unique experience that encourages success. For this reason, our engineers carefully and thoughtfully consider your approach as well as accuracy. We know there are alternative ways to complete a task, so we look for those as well.

Adding the Human Element

A proctored review session with an Arista engineer is offered to candidates who fail by a narrow margin. This gives the candidate an additional opportunity to explain reasoning or come to the proper conclusion by discussing the failed task with a subject matter expert, rather than receiving an automatic fail.


"Great course which did an amazing task to introduce us to 'The Arista Way' in a manner which was easily graspable and fun”

Jayeshh S

"It's refreshing that a tech company is still teaching/stressing networking basics ; a solid foundation is key for any capable architect or engineer.”


"Really nice course. It is great and many important topics are touched e.g. VXLAN, Routing, CloudVision”

Pawel K

"The course helped me to have an overview of network areas that I didn't have contact with and to understand the field application of the ones I had. ”

Robert O

"Great course that goes into detail for each topic listed. Learned many concepts that will help me in the future with my network assignments.”


"The in depth explanation of the topics, especially the inner working of EVPN and VXLAN was excellent. Deconstructing the packets and operational flow is very valuable to understand exactly how these technologies work. The instructor did a great job of explaining this and his depth of knowledge was obvious.”

Shayne K

"The course does a good job of covering all the aspects of automation and how they apply to Arista products. The lab content is very structured and I really like the large and comprehensive lab environment. Much better than other vendor classes I've participated in.”

Nathan M

"The course was what I was looking for - introduction to automation. The difficulty level was perfect, it was challenging enough and I felt like I learnt a lot. I especially liked the labs.”


"I liked the fact the course was designed for both people knew how to code as well as people familiar with it. I learned a lot, and it made me more comfortable realizing that automation is not actually out of my grasp.”

Andrei M

"The instructor was fantastic, had a clear understanding on the materials that were being presented and was able to backup his presentations with his knowledge.”

Brian B

"The instructor was very knowledgable and able to explain the concepts very clearly, using his own diagrams that he drew during class specifically to explain certain topics. I felt he was also very approachable and helpful when answering any questions I had.”


"Fantastic course. The layout was great and the labs were great also. Not a single complaint or even constructive criticism. You can see the amount of hard work that went into building this class.”

Mike C


Contact Information

Questions: [email protected]