Cisco 300-830 CLCCE case studies
Cisco 300-830 CLCCE · Put your knowledge to work in context.
The Cisco 300-830 CLCCE is a concentration-style exam in Cisco's collaboration certification track, aimed at engineers who design, deploy, and operate cloud and edge collaboration solutions rather than only on-premises call control. Candidates typically come from unified communications, contact center, or network engineering roles and want to demonstrate that they can connect a collaboration workload to a cloud provider, build a survivable edge, and keep dial plans coherent across sites. The published exam page currently returns a not-found error, so this guide cannot state the official question count, time limit, passing score, price, or domain weighting; the four study areas shown here are a provisional, evenly split structure covering collaboration cloud and edge solutions, cloud and edge networking fundamentals, call control and dial-plan design, and security, management, and troubleshooting. Treat those weights as a study scaffold, not an official blueprint. The Cisco 300-830 CLCCE case studies are 5 cases and about 2,739 words.
1Remote Access Stops After Expressway-E Certificate Renewal
Acme Health has 750 remote workers using Webex App in Mobile and Remote Access mode. The DMZ contains an Expressway-E cluster (exp-e1 and exp-e2) fronted by a load balancer; the internal Expressway-C cluster registers clients to Cisco Unified CM 14.
601 words, about 3 min2One-Way Audio Through Expressway-E Static NAT
Globex has 400 remote users on MRA. Expressway-E has internal interface 10.20.5.10 and external 203.0.113.25 with static NAT.
574 words, about 3 min3National Dialing, Site Codes, and 911 Routing
Northwind has CUCM 14 at HQ and a branch, each with a local CUBE. Extensions are 4 digits: HQ 1000-1999, branch 2000-2999.
527 words, about 3 min4MRA Sign-In Fails After CUCM Tomcat Certificate Regeneration
Contoso has 1,100 users on MRA with Expressway-C/E and CUCM 14. The security team regenerated the CUCM Tomcat certificate using the internal Microsoft CA.
508 words, about 3 min5Thirty-Minute Call Drops and One-Way Audio at a Webex Calling Branch
Fabrikam has 300 users at a branch using Webex Calling with a local firewall and SD-WAN. Calls between branch users and PSTN are stable, but calls from branch Webex App users to HQ CUCM endpoints via a CUBE interworking trunk drop at almost exactly 30 minutes.
529 words, about 3 min