Cisco 300-820 Implementing Cisco Collaboration Cloud and Edge Solutions (CLCEI) Online Training
Cisco 300-820 Online Training
The questions for 300-820 were last updated at Oct 14,2025.
- Exam Code: 300-820
- Exam Name: Implementing Cisco Collaboration Cloud and Edge Solutions (CLCEI)
- Certification Provider: Cisco
- Latest update: Oct 14,2025
What is the Cisco-recommended key length in bits for a Cisco Expressway certificate?
- A . 1024
- B . 2048
- C . 4096
- D . 8192
Refer to the exhibit.
Which two numbers match the regular expression? (Choose two.)
- A . d20d16d20d22
- B . 2091652010224
- C . 209165200225
- D . d209d165d200d224
- E . 209165200224
A company has enabled ICE to optimize call flows and improve video quality between their Cisco Collaboration endpoints internally and externally.
For which reason would you see activity on the TURN server when a call is established between two external endpoints?
- A . The video call is using encryption, which is not supported by ICE with CUCM 12.5
- B . ICE cannot reduce the packet loss on the link
- C . A STUN cannot punch holes in the firewall
- D . The video call is using 4K resolution, which is not supported by ICE with CUCM 12.5
Which role does Call Policy play when preventing toll fraud on Expressways?
- A . It controls which calls are allowed, which calls are rejected, and which calls are redirected to a different destination.
- B . It changes the calling and called number on a call.
- C . It changes the audio protocol used by a call through Expressways.
- D . It changes the audio codec used in a call through Expressways.
What happens to the encrypted signaling traffic of a collaboration device if you place it inside a firewall with private IP addresses and try to make a call over IP without any collaboration infrastructure?
- A . The signaling makes it back to the endpoint because the firewall is an application layer gateway and provides address translation.
- B . Encrypted IP traffic for collaboration devices always is trusted by the firewall.
- C . The signaling does not make it back to the endpoint because the firewall cannot inspect encrypted traffic.
- D . The signaling makes it back to the endpoint because the endpoint sent the private address to the external endpoint.
Which statement about scheduling Expressway backups is true?
- A . It is not supported on the application.
- B . It is allowed from the application CLI of the Expressway only.
- C . It is allowed from the application CLI and GUI of the Expressway.
- D . It is allowed from the application GUI of the Expressway only.
Between which two DTMF relay methods does the Expressway support interworking? (Choose two.)
- A . unsolicited notify
- B . RFC 2833
- C . KPML
- D . passthrough
- E . H.245 user input indication
What allows endpoints behind a NAT to discover the paths through which they will pass media?
- A . RTP
- B . TLS
- C . SNMP
- D . ICE
Which two types of information does Cisco Expressway back up? (Choose two.)
- A . call records
- B . log les
- C . IP addresses
- D . current call states
- E . security certificates
Which connection does the traversal zone configuration de ne?
- A . Expressway-E and Collaboration Endpoints
- B . Cisco UCS E-Series and Cisco UCM
- C . Cisco UC and Cisco Unified Presence Server
- D . Cisco Expressway-C and Cisco Expressway-E platforms
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