Question 1

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Refer to the exhibit showing logs from the Expressway-C, a copy of the Expressway-E certificate, and the UC traversal zone configuration for the Expressway-C. An office administrator is deploying mobile and remote access and sees an issue with the UC traversal zone. The zone is showing ''TLS negotiation failure''. What is causing this issue?

AThe Expressway-E certificate includes the Expressway-C FQDN as a SAN entry

BThe Expressway-C is missing the FQDN of Cisco UCM in the Common Name of its certificate

CIn the UC Traversal Zone on the Expressway-C, the peer address is set to the IP of the Expressway-E,
which is not a SAN entry in the Expressway-E certificate

DThe Expressway-E does not have the FQDN of Cisco UCM listed as a SAN in its certificate

Answer : D

Question 2

Which two types of information does Cisco Expressway back up? (Choose two.)

Acall records

Blog files

CIP addresses

Dcurrent call states

Esecurity certificates

Answer : D, E

Question 3

When a Cisco Webex Video Mesh Node is configured for an organization, which process does the Webex Teams client use to discover the optimal bridging resource?

Athe lowest STUN round-trip delay to each node and cloud

Ba reachable Video Mesh Node and then overflows to the cloud, if needed

Cthe SIP delay header during call setup

Dan HTTPS speed and latency test to each node and the cloud

Answer : B

Question 4

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

ASTUN

BRTP

CSNMP

DTURN

Answer : A

Question 5

Which two considerations must be made when using Expressway media traversal? (Choose two.)

AIt is possible to NAT both Expressway-E interfaces

BThe Unified Communications traversal zone should be used for MRA

CThe Expressway-E must be put in a firewall DMZ segment

DExpressway Control is the traversal server installed in the DMZ

ECisco UCM zone should be either traversal server or client

Answer : B, C

Question 6