300-820 Practice Online

Question 1

Which protocol should be used to verify the connectivity for different media paths found during a call using ICE?

A : STUN

B : RTP

C : SNMP

D : TURN

Answer: A

Question 2

How does an administrator configure an Expressway to make sure an external caller cannot reach a

specific internal address?

A : block the call with a call policy rule in the Expressway-E

B : add the specific URI in the firewall section of the Expressway and block it

C : configure FAC for the destination alias on the Expressway

D : add a search rule route all calls to the Cisco UCM

Answer: C

Question 3

Which zone is required between Expressway-E and Expressway-C in Mobile and Remote Access

deployments?

A : Unified Communications traversal zone

B : neighbor zone

C : DNS zone

D : traversal zone

Answer: A

Question 4

Which two items are configured when deploying a B2B collaboration solution? (Choose two.)

A : SIP trunk between Cisco Unified Communications Manager and Cisco Expressway-C

B : search rules in Cisco Expressway-E

C : SIP trunk between Cisco Unified Communications Manager and Cisco Expressway-E

D : traversal client on a Cisco Expressway-E

E : DNS zone on a Cisco Expressway-C

Answer: A,B

Question 5

Which two statements about Cisco Webex Video Mesh Nodes are true? (Choose two.)

A : When Expressway Core works with VMN clusters, Expressway Core decides which VMN is used for

signaling/media connection.

B : Cloud-registered devices choose a VMN cluster based on the lowest STUN round trip delay.

C : The cascading traffic between VMN must bypass the firewall.

D : When Cisco Unified Communications Manager works with multiple VMNs, Cisco Unified CM decides which VMN is used for signaling connection.

E : A VMN can terminate a media connection while operating in maintenance mode.

Answer: B,D

Name:	Implementing Cisco Collaboration Cloud and Edge Solutions
Exam Code:	300-820
Certification:	CCNP Collaboration
Vendor:	Cisco
Total Questions:	163
Last Updated:	May 02, 2024

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