Free Cisco 300-820 Exam Questions

Question 1

Refer to the exhibit. A manager asks an engineer to create a CSV file for the HTTP allow list on the Expressway deployment. The engineer wrote the script shown and uploaded it to the Expressway, but it is not being accepted. Which action resolves the issue?

A : Addthe command POST at the end on this line “http://myServer4/myPath4,block,,,POST”.

B : Removethe Method “PUT” from “http://myServer2:8000/myPath2,allow “my deployment”, “an allow test”,PUT”.

C : Remove the line “https://myServer4/myPath4,allow,,,GET”

D : Nothing is wrong, but the file type is most likely not XML

Answer: C

Question 2

Refer to the exhibit. An engineer is deploying mobile and remote access in an environment that already had functioning Business to Business calling. Mobile and remote access SIP registrations are failing. To troubleshoot, SIP logs were collected. How is this issue resolved?

A : Change the SIP profile on the SIP trunk for the Expressway-E to Standard SIP Profile for TelePresence Endpoint

B : Change the “Incoming Port” in the SIP Trunk Security Profile for the Expressway-C to not match SIP line registrations

C : Enable autoregistration for the appropriate DN range on the Cisco UCM servers running the CallManager service

D : Write a custom normalization script since the “vcs-interop” normalization script does not allow registrations

Answer: B

Question 3

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 : signaling makes it back to the endpoint because the firewall is an application layer gateway and provides address translation.

B : crypted IP traffic for collaboration devices always is trusted by the firewall.

C : signaling does not make it back to the endpoint because the firewall cannot inspect encrypted traffic.

D : signaling makes it back to the endpoint because the endpoint sent the private address to the external endpoint.

Answer: B

Question 4

Refer to the exhibit. A manager asks an engineer to create a CSV file for the HTTP allow list on the Expressway deployment. The engineer wrote the script shown and uploaded it to the Expressway, but it is not being accepted. Which action resolves the issue?

A : Addthe command POST at the end on this line “http://myServer4/myPath4,block,,,POST”.

B : Removethe Method “PUT” from “http://myServer2:8000/myPath2,allow “my deployment”, “an allow test”,PUT”.

C : Remove the line “https://myServer4/myPath4,allow,,,GET”

D : Nothing is wrong, but the file type is most likely not XML

Answer: C

Question 5

Refer to the exhibit. After hardening the Cisco Expressway, an engineer noticed this error in the logs HTTP error 429 "Too Many Requests,” and users report that authentication is not possible on more than two devices. What must the engineer increase to correct the issue?

A : maximum authorizations per period

B : credentials refresh interval

C : rate control period

D : credentials cleanup interval

Answer: A