Cisco CLCEI 300-820
Implementing Cisco Collaboration Hybrid and Cloud Technologies
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ExploreAbout this exam
The Cisco 300-820 CLCEI exam, listed by Cisco as Implementing Cisco Collaboration Hybrid and Cloud Technologies, is a concentration-style exam aimed at collaboration engineers who design, deploy, and operate hybrid environments that connect on-premises Cisco collaboration infrastructure with Webex cloud services. It suits administrators and engineers already comfortable with Unified Communications Manager, Expressway edge deployments, and Webex administration, who now need to prove they can bridge the two worlds securely. The published exam blueprint is organized into five equally weighted domains of 20 percent each: hybrid and cloud collaboration architecture and deployment models; Webex Control Hub administration and licensing; hybrid calendar and directory integration with Microsoft Exchange and Active Directory; Cisco Unified Communications Manager Cloud plus hybrid call and message routing; and edge, Expressway, and secure firewall traversal for hybrid services. Preparation should be lab-driven rather than reading-only: build a small environment with a registered Expressway pair, a Control Hub organization, calendar connector and directory synchronization, and hybrid call routing, then break and repair each piece. Pair hands-on practice with Cisco's official exam page and its training references to confirm the current blueprint before booking. Note that this page is independent study material and is not affiliated with, endorsed by, or sponsored by Cisco; always verify exam logistics and objectives on Cisco's own site, since details such as question count, duration, price, passing score, and retake rules are not reproduced here.
What you'll study
About Cisco CLCEI 300-820 preparation
What is the 300-820 CLCEI exam actually testing?
It tests hybrid collaboration operations: connecting on-premises Cisco collaboration systems to Webex cloud services. The published blueprint splits evenly across architecture and deployment models, Control Hub administration and licensing, calendar and directory integration, Unified Communications Manager Cloud and hybrid routing, and Expressway edge with firewall traversal. Expect configuration-level reasoning, not just product vocabulary.
How many questions are on the exam and how long do I get?
We do not publish those figures because they can change and we could not confirm them from the source we used. Check the exam page on Cisco's site before you schedule, and treat any third-party number you see as unverified. Plan your pacing in practice so you are not surprised on exam day.
How much does the exam cost and how long is the certification valid?
Those values are not confirmed here, so we deliberately leave them out rather than guess. Pricing varies by region and currency, and validity depends on the certification track you are pursuing. Confirm both on Cisco's official training and certification pages, and check your CertMetrics account for your own credential status.
Which domain should I study first?
Start with architecture and deployment models, because every later topic assumes you understand which components sit on premises, which sit in the cloud, and how traffic flows between them. Then move to Control Hub and licensing, followed by calendar and directory integration, hybrid call routing, and finally Expressway and firewall traversal, which ties the earlier pieces together.
Do I need hands-on lab access to pass?
Strongly recommended. Reading about Expressway traversal zones, calendar connectors, and directory sync rarely survives contact with a real deployment. Build a minimal lab: an Expressway-C and Expressway-E pair, a Webex organization in Control Hub, calendar integration to a test Exchange mailbox, and directory synchronization. Breaking and fixing these teaches more than any summary.
Where do candidates most often lose marks?
Common weak spots are DNS and certificate mistakes on Expressway that silently break hybrid service registration, confusion between calendar connector and hybrid calendar service options, and unclear understanding of which side initiates connections through the firewall. Another frequent gap is licensing: mapping Webex subscription types to the features they actually unlock in Control Hub.
What is the difference between the Expressway-C and Expressway-E in hybrid designs?
Expressway-C sits on the internal network and connects to on-premises services such as Unified Communications Manager and directory systems. Expressway-E sits in a DMZ and faces the internet, handling secure traversal toward Webex. Understanding which side initiates each connection, and which ports and certificates are required, is central to the edge and firewall traversal domain.
How should I split study time across the five domains?
Because the blueprint weights all five domains at 20 percent each, an even split is a reasonable baseline. Adjust based on your background: voice engineers often need more time on Control Hub licensing and calendar integration, while messaging or directory specialists may need more on Expressway traversal and hybrid call routing. Track weak areas with practice questions.
Can I retake the exam if I fail, and how soon?
Retake rules and waiting periods are set by Cisco and its testing partner, and we could not confirm current terms from our source, so verify them directly. Cisco's certification policy page and your exam delivery provider's scheduling portal are the authoritative places to check before you rebook, since policies and any waiting windows can be revised.