CCIE Collaboration Written: 400-051 Exam


"CCIE Collaboration Written", also known as 400-051 exam, is a Cisco Certification. With the complete collection of questions and answers, PrepAwayPDF has assembled to take you through 660 Q&As to your 400-051 Exam preparation. In the 400-051 exam resources, you will cover every field and category in CCIE Certification helping to ready you for your successful Cisco Certification.

  • Exam Code: 400-051
  • Exam Name: CCIE Collaboration Written
  • Total Questions: 660
  • Certification Provider: Cisco
  • Corresponding Certification: CCIE
  • Updated on: Oct 22, 2026

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Cisco 400-051 Exam Overview:

Certification Vendor:Cisco
Exam Name:CCIE Collaboration Written Exam
Exam Number:400-051
Exam Price:$450 USD
Certificate Validity Period:Written exam valid for 18 months
Exam Duration:120 minutes
Passing Score:Scaled score (not publicly disclosed)
Available Languages:English
Exam Format:Multiple choice single/multiple answer, Drag and drop, Scenario-based
Real Exam Qty:90–110
Recommended Training:CCIE Collaboration Learning Path
Cisco Official Training
Exam Registration:Cisco Official Exam Page
Pearson VUE Registration
Sample Questions: DOWNLOAD DEMO
Exam Way:Online proctored or onsite at Pearson VUE test centers
Pre Condition:No mandatory prerequisites; recommended 5–7 years of experience in collaboration technologies
Official Syllabus URL:https://www.cisco.com/c/dam/en_us/training-events/le31/le46/cln/marketing/exam-topics/ccie-collab-v2_0-etv1_1.pdf

Cisco 400-051 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Cisco Expressway and Border Elements18%- Security and firewall traversal
- Traversal zones and call control
- Expressway core and edge deployment
Topic 2: Collaboration Applications and Endpoints15%- Cisco IM and Presence
- Cisco Unity Connection
- Webex integration
- Video endpoints and conferencing
Topic 3: Evolving Technologies10%- Network programmability
- Hybrid architecture
- Cloud collaboration solutions
Topic 4: Quality of Service10%- Queuing and congestion management
- Bandwidth and delay optimization
- QoS models and classification
Topic 5: Gateways and Media Resources15%- ISDN, SIP and analog interfaces
- DSP resources and media services
- Voice and video gateways
Topic 6: Cisco Unified Communications Manager20%- Device configuration and registration
- Security and serviceability
- Architecture and redundancy
- Dial plan and call routing
Topic 7: Protocols and APIs12%- Signaling and media protocols
- Collaboration APIs and management interfaces

Questions Candidates Ask About the Cisco CCIE Collaboration Written

Plan on needing Scaled score (not publicly disclosed) to pass the 400-051 exam, and budget $450 USD for the official registration. Treat that fee as single-use: a failed attempt means paying the same amount again for a retake. The cheapest insurance policy is preparation — cycle through the 660 practice questions at PrepAwayPDF until your timed mock results clear the passing mark consistently, and only then schedule your exam.

For the Cisco CCIE Collaboration Written, Cisco points candidates toward these resources:

Training builds the foundation; deliberate practice builds the pass. Layer the 660 practice questions from PrepAwayPDF on top of any course above, and you cover theory and execution in one plan.

The Cisco CCIE Collaboration Written blueprint spans 7 domains. The heaviest hitters include Protocols and APIs (12%), Evolving Technologies (10%), and Cisco Expressway and Border Elements (18%). The complete breakdown — every domain and subtopic — is laid out in the syllabus section above, and that is the map your study sessions should follow.

Expect 90–110 questions and 120 minutes on the clock for the 400-051 exam. Time management is a skill of its own here: candidates who untimed-study often discover the real pressure only when the countdown starts. Build that muscle memory early — run full timed simulations in the PrepAwayPDF desktop or online test engine, practice flagging and skipping, and let pacing become reflex before exam day.

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If you sit the 400-051 exam within 60 days of purchase and the result is a fail, the PrepAwayPDF money back guarantee has you covered: file within 2 days of the exam with a scan of your enrollment slip and the official score report (PDF), and the claim is processed within 7 days. The candidate name must match the payer name; exams taken within 3 days of purchase, purchases never used in an actual attempt, free materials, and expired orders fall outside the policy. Not interested in a refund? Exchange the product for two free exam packages of equal value and keep the update service on your original purchase.

Formally known as the CCIE Collaboration Written, the 400-051 exam is Cisco's way of certifying that you can apply its technologies to real-world problems — pass it, and you hold the CCIE Collaboration certification, a Expert-level credential. Because it is vendor-backed and skills-driven, employers treat it as proof rather than promise.

Book your Cisco CCIE Collaboration Written seat through these official channels:

One practical note: the 400-051 exam is delivered Online proctored or onsite at Pearson VUE test centers, so factor that into which slot you choose.

There is — PrepAwayPDF publishes a free PDF demo of the 400-051 materials, so you can verify the accuracy and relevance of the questions before committing a cent. Buying unlocks 365 days of free updates on top of the full question bank, and if your product ever expires, the update service renews at a 50% discount from your member zone.

No mandatory prerequisites; recommended 5–7 years of experience in collaboration technologies

Requirements like these evolve, so before locking in an exam date, double-check the current rules on the official Cisco exam page.

Cisco CCIE Collaboration Written Sample Questions:

Which three services must be activated on Cisco Unified Presence in order for presence and instant messaging to be functional? (Choose three.)

  • A. Cisco Serviceability Reporter
  • B. Cisco Unified Presence Sync Agent
  • C. Cisco AXL Web Service
  • D. Cisco Unified Presence Engine
  • E. Cisco Unified Presence SIP Proxy
  • F. Cisco Bulk Provisioning Service
Reveal Solution  Discussion  0

Correct Answer: B,D,E  🗳️

A user has reported that when trying to access Visual Voicemail the Following error is received:
"Unable to open application please try again later if it continues to fail contact your administrator'.
The collaboration engineer working on the problem found the following on the phone logs CVMInstallerModule STATUS_install_cancelled STATUS_INSTALL) _ERROR [thread=installer MQThread][class=cip midp midletsuite installerModule][function=update status] Midlet install Canceled/ERROR...visual Voicemail

How can this issue be resolved?

  • A. Configure DNS on phone configuration so it can resolve server name
  • B. Replace the sever name with the server IP on service URL field
  • C. Check the Enable checkbox on IP phone service configuration
  • D. Eliminate the space in the service Name field
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Explanation: Only visible for PrepAwayPDF members. You can sign-up / login (it's free).

Assume 20 bytes of voice payload, 6 bytes for the Layer 2 header, 1 byte for the end-of-frame flag, and the IP, UDP, and RTP headers are compressed to 2 bytes, how much bandwidth should be allocated to the strict priority queue for six VoIP calls that use a G.729 codec over a multilink PPP link with cRTP enabled?

  • A. 80.4 kb/s
  • B. 62.4 kb/s
  • C. 78.4 kb/s
  • D. 91.2 kb/s
  • E. 69.6 kb/s
Reveal Solution  Discussion  0

Correct Answer: E  🗳️

Explanation: Only visible for PrepAwayPDF members. You can sign-up / login (it's free).

Assume 18 bytes for the Layer 2 header and a 10-millisecond voice payload, how much bandwidth should be allocated to the strict priority queue for three VoIP calls that use a G.722 codec over an Ethernet network?

  • A. 347.8 kb/s
  • B. 331.2 kb/s
  • C. 238.4 kb/s
  • D. 261.6 kb/s
  • E. 274.7 kb/s
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Explanation: Only visible for PrepAwayPDF members. You can sign-up / login (it's free).

In a SIP REFER-based call transfer, which SIP message is being used by the recipient to notify the originator that the final recipient was successfully contacted?

  • A. NOTIFY with a message body of 200 OK
  • B. 100 Trying
  • C. 200 BYE
  • D. 200 OK
  • E. 202 Accepted
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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