Cisco 300-820 exam questions & answers, 300-820 real exams

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Primary Expressway Configurations – 25%

This subject area measures the following skills of the candidates:

Configuring toll fraud avoiding within the Expressway series (without custom CPL scripts);
Configuring the Expressway Core dial plan components (including transforms; zones; search rules; pipes & links; regular expressions);
Configuring a Business to Business collaboration solution (including neighbor zones; traversal zones; search rules; transforms; certificates; DNS records; SIP trunk integration with Cisco Unified Communications Manager);
Configuring the core Expressway settings (including DNS; certificates; clustering; network firewall rules; QoS; network interfaces);
Troubleshooting a Business to Business collaboration solution.

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Cisco Implementing Cisco Collaboration Cloud and Edge Solutions Sample Questions (Q13-Q18):

NEW QUESTION # 13
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 4K resolution, which is not supported by ICE with CUCM 12.5
B. The video call is using encryption, which is not supported by ICE with CUCM 12.5
C. ICE cannot reduce the packet loss on the link
D. A STUN cannot punch holes in the firewall

Answer: D

NEW QUESTION # 14
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. Encrypted IP traffic for collaboration devices always is trusted by the firewall.
B. The signaling makes it back to the endpoint because the firewall is an application layer gateway and provides address translation.
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.

Answer: A

NEW QUESTION # 15
An organization with a domain name of example.com.
Which two SRV records are valid for a SIP and H.323 communication? (Choose two.)

A. _h323ls._tcp.example.com
B. _sips._udp.example.com
C. _h323ls._udp.example com
D. _collab-edge._tls.example.com
E. _sips._tcp.example.com

Answer: C,E

NEW QUESTION # 16
Refer to the exhibit.

When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?

A. 13358 is sent directly to the traversal zone.
B. 13358 is replaced by 135 and remains in the same zone.
C. 13358 is replaced by 135, and then is sent to the local zone.
D. 13358 is replaced by 135, and then is sent to the traversal zone.

Answer: A

NEW QUESTION # 17
Refer to the exhibit.

When a Jabber user attempts to connect from outside of the organization, the user enters the login information as "user@example.com" and receives the error "Cannot find your services Automatically". The engineer tries to resolve SRV records used by Jabber.
DNS A record "expressway-e.example.com" points to the Expressway-E IP and "cucm.example.com" points to the Cisco Unified Communications Manager.
Which change resolves the DNS problem?

A. Change the priority of the SRV record for cisco-uds.
B. Change the collab-edge record to point to 5061.
C. Change cisco-uds to point to the Expressway-E FQDN.
D. Remove the cisco-uds SRV record for the external DNS.

Answer: D

NEW QUESTION # 18
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