350-801 exam domains
The 350-801 exam is weighted across 6 domains. Pick any domain below to drill it — or read the full breakdown in the FAQ.
| Exam domain | Exam weight | Practice |
|---|---|---|
| Infrastructure and Design | 15% | Practice this topic |
| Protocols and Endpoints | 10% | Practice this topic |
| On-Premises Call Control | 30% | Practice this topic |
| Voice Gateways and Session Border Controllers | 10% | Practice this topic |
| Cloud and Hybrid Services | 25% | Practice this topic |
| Media and QoS | 10% | Practice this topic |
Sample 350-801 questions
A sample of the 350-801 questions on this hub. Each links through to the full question, the correct answer, and an explanation of why every other option is wrong.
- Users at a branch site report choppy, robotic audio only on calls that traverse the WAN during business hours; internal branch-to-branch calls are cle…View question
- A collaboration engineer wants to onboard an existing on-premises Cisco Unified Communications Manager cluster to Cloud Connected UC (CCUC) so that ad…View question
- A large enterprise using Webex Control Hub wants to delegate day-to-day help-desk operations to a regional IT team. This team must be able to reset pa…View question
- A CUBE running IOS XE receives an inbound INVITE from an ITSP. Two inbound dial-peers are configured: dial-peer 100 has 'incoming uri via 10.1.1.1' ma…View question
- An engineer configures a CUBE to accept inbound SIP calls from an ITSP. The current inbound dial peer matches on 'incoming called-number', but the ITS…View question
- You are deploying media resources on an IOS XE CUBE that must transcode between G.711 and Opus for calls between a legacy PBX and a cloud calling prov…View question
- A CUBE connects an ITSP SIP trunk to CUCM. The provider sends RFC 2833 DTMF, but CUCM's SIP trunk is configured for out-of-band (SIP KPML/unsolicited…View question
- A CUBE is sending calls to an ITSP that requires the called number in the format 91XXXXXXXXXX, but CUCM forwards the called number to CUBE as a 10-dig…View question
- A CUBE has two outbound dial peers to reach the PSTN through separate ITSPs. Dial peer 100 has 'preference 1' and points to ITSP-A; dial peer 200 has…View question
- A CUBE has two outbound VoIP dial peers matching calls to the PSTN provider. Dial peer 100 is configured with 'preference 1' and points to the primary…View question
Key 350-801 terms
Start with these terms, then explore the full glossary. Each links to a plain-English definition written for the 350-801 exam.
350-801 frequently asked questions
What is the 350-801 certification?+
CLCOR is the shared core exam for CCNP Collaboration and a qualifying exam for CCIE Collaboration.
It spans on-premises and cloud collaboration, so success rewards hands-on experience with CUCM, endpoints, gateways, and Webex.
What topics are on the 350-801 exam?+
The CLCOR exam is organised into six weighted domains. The percentages below are Cisco’s official blueprint weightings, so bias your study toward the heaviest domain — On-Premises Call Control is 30% of the exam, followed by Cloud and Hybrid Services.
Infrastructure and Design (15%)
Covers collaboration solution design and infrastructure: high availability, licensing, QoS design, and the roles of core collaboration components.
Protocols and Endpoints (10%)
Covers signaling and media protocols centered on SIP (with RTP/SRTP for media), codecs, and configuring and registering endpoints.
On-Premises Call Control (30%)
The largest domain. Covers Cisco Unified Communications Manager: registration, dial plan (route patterns, partitions, calling search spaces, translations), call routing, media resources, and features.
Voice Gateways and Session Border Controllers (10%)
Covers voice gateways with SIP dial peers, PSTN connectivity, and Cisco Unified Border Element (CUBE) as an SBC for SIP trunking.
Cloud and Hybrid Services (25%)
Covers Webex, Webex Calling, Expressway and Mobile and Remote Access (MRA), and hybrid deployments that connect on-premises CUCM to the cloud.
Media and QoS (10%)
Covers QoS for real-time media: classification and marking (DSCP), queuing including LLQ, and ensuring voice and video quality across the network.
Is the 350-801 hard?+
CLCOR is hard because it spans on-premises call control and cloud/hybrid collaboration plus the protocols and QoS underneath, requiring both configuration and design knowledge.
The heavy On-Premises Call Control and Cloud/Hybrid weighting rewards hands-on CUCM and Webex experience. Practical lab time is decisive.
How many questions are on the 350-801 exam and how long is it?+
CLCOR is a 120-minute exam with a mix of multiple-choice and other item types; Cisco does not publish an exact question count. It is a qualifying exam for CCNP and CCIE Collaboration.
Our full-length practice mock uses a 90-question, 120-minute session so you can rehearse pacing across all six domains before test day.
What score do you need to pass the 350-801?+
Cisco does not publish a fixed passing score for CLCOR; scaled cut scores are not disclosed and vary by exam form, so the 75% threshold on our practice mock is our own study checkpoint rather than an official cutline. Because there is no guessing penalty, answer every question.
How much does the 350-801 exam cost?+
The CLCOR exam fee is set by Cisco (around US$400) — check the Cisco site for current pricing. The certification is valid for three years. Everything on this hub is free.
Who should take the 350-801?+
CLCOR is aimed at collaboration engineers, voice/UC engineers, and network engineers pursuing CCNP or CCIE Collaboration.
Cisco recommends three to five years of collaboration experience before attempting it.
What jobs and salaries can the 350-801 lead to?+
CLCOR maps to roles such as collaboration engineer, unified communications engineer, and voice network engineer.
How much any certification affects pay depends heavily on geography, seniority, and experience, so treat any single salary figure with caution. CLCOR is best viewed as proof of professional-level collaboration skill.
How long does it take to study for the 350-801?+
Candidates often need two to four months, with hands-on time on CUCM, endpoints, gateways, and Webex alongside study.
Review every explanation, including for questions you answered correctly, because CLCOR distractors are built from plausible but incorrect collaboration configurations. Use the per-domain results here to find your weakest area, then finish with full-length timed mocks.
How should you prepare for the 350-801?+
Study the six domains above, giving the heaviest weight to On-Premises Call Control and Cloud and Hybrid Services, then drill scenario questions domain by domain while practicing with CUCM and Webex. Every MockAPI question reveals a full explanation and tells you why each wrong answer is wrong.
When you can configure call control and hybrid services comfortably, move to full-length timed mocks. Use the glossary to keep concepts like CUCM, SIP, dial plan, CUBE, Expressway/MRA, and LLQ straight, and aim to score consistently above the checkpoint before you book.
Can you take the 350-801 exam online?+
Yes. Cisco delivers 350-801 CLCOR through Pearson VUE, so you can test at a physical Pearson VUE centre or online with OnVUE remote proctoring. The online exam requires a private, quiet room, a clear workspace, a webcam and microphone, a stable connection, and government-issued photo ID, with a proctor monitoring you and a room scan before you start.
If you do not pass, Cisco enforces a waiting period of five calendar days before you can retake the same exam.
What certification should you take after the 350-801?+
After CLCOR, you complete CCNP Collaboration with a concentration exam, or pursue the CCIE Collaboration lab.
For many, the real next step is running collaboration infrastructure in production. Pairing CLCOR with hands-on operations is what turns the certificate into a career.