Pass the actual test with the help of 31861X study guide
Last Updated: Sep 08, 2026
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Short on study time for the 31861X exam? Actualtests4sure turns the Avaya OneCloud™ UCaaS Design Certified syllabus into 61 focused practice questions, so every spare hour in 2026 moves you closer to a passing score.
| Certification Vendor: | Avaya |
|---|---|
| Exam Name: | Avaya OneCloud™ UCaaS Design Certified Exam |
| Exam Number: | 31861X |
| Exam Price: | 125 - 180 USD / 134 EUR |
| Related Certifications: | Avaya OneCloud UCaaS Implementation Certified Avaya Certified Implementation Specialist (ACIS) |
| Certificate Validity Period: | 2 years |
| Real Exam Qty: | 60 - 70 |
| Exam Format: | Drag-and-Drop, Multiple Choice, Scenario-Based |
| Available Languages: | English |
| Exam Duration: | 90 minutes |
| Passing Score: | 68% |
| Recommended Training: | Avaya OneCloud UCaaS Design Official Training Avaya Learning Center |
| Exam Registration: | Pearson VUE Registration Avaya Certification Portal |
| Sample Questions: | Avaya 31861X Sample Questions |
| Exam Way: | Onsite at Pearson VUE authorized centers; Online proctored via Pearson VUE |
| Pre Condition: | No mandatory prerequisites; recommended experience with UC/VoIP concepts and Avaya solutions |
| Official Syllabus URL: | https://www.avaya.com/en/support/certification/ |
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Integration & Interoperability | 20% | - SIP trunking and connectivity - Migration considerations from on-premise - Integration with Avaya Aura and third-party systems |
| Topic 2: Licensing, Sizing & Capacity Planning | 20% | - User and endpoint sizing - License models and allocation - Redundancy and scalability planning |
| Topic 3: Solution Design & Requirements Gathering | 25% | - Network and bandwidth planning - Security and compliance design - Customer requirement analysis |
| Topic 4: Design Validation & Best Practices | 15% | - Avaya design tools and documentation - Resilience and fault tolerance - Design review and validation |
| Topic 5: Avaya OneCloud UCaaS Overview & Architecture | 20% | - Core UCaaS concepts and service models - Avaya OneCloud platform components - Avaya IX Calling, Spaces, and Messaging overview |
The Avaya 31861X exam, officially titled Avaya OneCloud™ UCaaS Design Certified Exam, is the required test for earning the Avaya Certified Design Specialist (ACDS) - Avaya OneCloud™ UCaaS Design certification, a credential at the Specialist / Intermediate level. Passing it validates the skills Avaya expects from certified professionals, and it can also support progress toward related credentials such as Avaya OneCloud UCaaS Implementation Certified, Avaya Certified Implementation Specialist (ACIS).
The 31861X exam includes 60 - 70 questions, and you have 90 minutes to complete it. Before exam day, divide the available time by the question count so you know the pace you need to hold, and practice flagging time-consuming items for review instead of stalling on a single question. Timed sessions in the Actualtests4sure test engine are the easiest way to build that rhythm before it counts.
You need 68% to pass the 31861X exam, and the official registration fee is 125 - 180 USD / 134 EUR. Keep in mind that a failed attempt means paying that fee in full again for a retake, so avoid booking your seat on a hunch. Work through the Actualtests4sure practice test until your scores sit comfortably above the passing requirement before you schedule the exam.
Avaya asks candidates to meet the following requirement before registering: No mandatory prerequisites; recommended experience with UC/VoIP concepts and Avaya solutions. Exam policies do change, so confirm the latest details on the official exam page at https://www.avaya.com/en/support/certification/ before you book.
You can book your seat through the official registration channels below:
The 31861X exam is delivered in the following format: Onsite at Pearson VUE authorized centers; Online proctored via Pearson VUE.
Avaya recommends the following official training for this exam:
A course builds the theory; practice turns it into exam-day performance. Once you finish a class, the 61 practice questions from Actualtests4sure show you how the same knowledge appears in exam-style items.
Yes. Actualtests4sure offers a free PDF demo of the Avaya OneCloud™ UCaaS Design Certified practice questions, so you can judge the quality and format before purchasing. After you buy, your purchase includes 365 days of free updates; if the product expires after that period, you can extend the update service at a 50% discount from your member zone.
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The Avaya OneCloud™ UCaaS Design Certified exam is organized into 5 major domains. Some of the key domains include:
Scroll up to the Exam Topics section for the complete breakdown, and use it to plan how much study time each domain deserves.
Question 1
The account team is concerned about limitations associated with analog licenses that you have included in your solution design.
Which two characteristics of analog licenses would you share with the account team? (Choose two.)
A. It is possible to uplift an analog license to a Core suite license.
B. Analog users will get all benefits of a Core license user; the only difference Is the device.
C. Analog license users can coexist in the same Communication Manager with Mobility and Collaboration users.
D. The percentage of analog licenses, within a solution, cannot exceed 60% of the total number of licenses.
Question 2
You are recommending the WAN link requirement per branch for a multi-location customer. The customer estimates the branch Inter-office communication use rate over the WAN to be one trunk per 20 branch users, and there are 460 users at each branch. You assume that after all header compressions have been applied, there is a 30% protocol overhead, and the G.729 codec being used provides 7.2 kbps.
How much bandwidth is needed for voice traffic on the WAN link for each branch?
A. 215.3 Kbps
B. 115.9 Kbps
C. 187.2 Kbps
D. 165.6 Kbps
Question 3
A customer is interested in deploying geo-redundant System Managers.
Which two requirements would they need to know? (Choose two.)
A. Both servers must be on the same IP subnet.
B. The two servers can reach each other on the network.
C. The two servers must have the same version of software,
D. Both servers must have the same IP address.
Question 4
You are adding 1400 users to an existing Avaya Aura communication core- The customer wants the same services for alt users, but with this expansion there Is not enough bandwidth for audio and video calls for all.
If the bandwidth parameter Is set lower than the minimum video requirement, what will happen to users Initiating audio and video calls?
A. Audio calls will connect but video calls will not initiate.
B. Audio and video calls will connect for some users.
C. Audio calls will connect and video calls will connect as audio calls.
D. Audio and video calls will connect for all users.
Question 5
You are helping a new Sales Engineer learn about Avaya Aura survivability. If a branch that has only SIP devices and has deployed a Survivable Remote Communication Manager and Session Manager, the engineer wants to know what happens when the connection to the Avaya Aura core is down.
What are two things you would tell the engineer? (Choose two.)
A. The local SIP device cache provides feature functionality.
B. The Survivable Remote Communication Manager provides feature functionality.
C. The Core Communication Manager provides feature functionality.
D. SIP telephones fail-over to the Survivable Remote Session Manager.
Solutions:
| Question 1 Answer: A,C | Question 2 Answer: B | Question 3 Answer: A,B | Question 4 Answer: B | Question 5 Answer: B,D |
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