300-820 Free Practice Test

In a Mobile and Remote Access deployment, where must communications be encrypted with TLS?

1. A. Cisco Expressway-E and endpoints outside the enterprise
2. B. Cisco Expressway-C, Cisco Unified Communications Manager, and IM&P
3. C. Cisco Expressway-C, Cisco Expressway-E, and Cisco Unified Communications Manager
4. D. Cisco Expressway-C, Cisco Expressway-E, and endpoints outside the enterprise

Correct Answer: A

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

1. A. When Expressway Core works with VMN clusters, Expressway Core decides which VMN is used for signaling/media connection.
2. B. Cloud-registered devices choose a VMN cluster based on the lowest STUN round trip delay.
3. C. The cascading traffic between VMN must bypass the firewall.
4. D. When Cisco Unified Communications Manager works with multiple VMNs, Cisco Unified CM decides which VMN is used for signaling connection.
5. E. A VMN can terminate a media connection while operating in maintenance mode.

Correct Answer: BD

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

1. A. SIP trunk between Cisco Unified Communications Manager and Cisco Expressway-C
2. B. search rules in Cisco Expressway-E
3. C. SIP trunk between Cisco Unified Communications Manager and Cisco Expressway-E
4. D. traversal client on a Cisco Expressway-E
5. E. DNS zone on a Cisco Expressway-C

Correct Answer: AB

An Expressway-E is configured using a single NIC with NAT.
How must the Expressway-C traversal client zone be configured to connect to the Expressway-E?

1. A. TLS verify must be enabled.
2. B. The zone profile must be set to default.
3. C. The peer address must be the Expressway-E NAT address.
4. D. The peer address must be the Expressway-E LAN 1 IP address.

Correct Answer: C

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

1. A. _sips._tcp.example.com
2. B. _sips._udp.example.com
3. C. _h323ls._udp.example com
4. D. _h323ls._tcp.example.com
5. E. _collab-edge._tls.example.com

Correct Answer: AC