Cisco CCNP 300-820 Questions & Answers

• Question 41:

  A company already has a Cisco Unified Communications Manager for internal audio and video traffic, but it requires video communication with external partners and customers. It is important to ensure security for the deployment and the connectivity.

  What must be set up to enable this requirement?

  A. Cisco Unified Border Element and Cisco ASA Firewall

  B. Cisco Unified Border Element and Cisco Firepower Firewall

  C. Cisco Expressway-C and Cisco Expressway-E

  D. Cisco Expressway-C and Cisco Unified Border Element

  Correct Answer: C

• Question 42:

  Which step is required when configuring Cisco Webex Hybrid Message Service?

  A. Add Expressway-C and Cisco UCM to the Cisco Webex Cloud.

  B. Register Expressway-C Connector Hosts to the Cisco Webex Cloud.

  C. Add Cisco Unity Connection to Expressway-E.

  D. Register Expressway-C to Cisco UCM.

  Correct Answer: B

• Question 43:

  An external Jabber device cannot register. While troubleshooting this issue, the engineer discovers that privately signed certificates are being used on Expressway-C and Expressway-E What action will resolve this issue?

  A. The private CA certificate must be placed in the phone trust store.

  B. The Jabber client must register to the Cisco UCM internally before it will register externally.

  C. The device running the Jabber client must use a VPN to register.

  D. The device running the Jabber client must download and trust the private CA certificate.

  Correct Answer: D

• Question 44:

  When determining why Mobile and Remote Access to Cisco TelePresence equipment does not work anymore for an organization. There are several administrators and configuration changes could have happened without anyone knowing. Internal communication seems to be working, but no external system can register or call anywhere. Gathering symptoms, you also discover that no internal systems can call out either.

  What is TraversalZone missing that causes this issue?

  A. link to the DefaultZone

  B. pipe to the DefaultZone

  C. SIP trunk to the DefaultZone

  D. route pattern to the DefaultZone

  Correct Answer: A

• Question 45:

  Which two statements about Expressway media traversal are true? (Choose two.)

  A. Expressway Control is the traversal server installed in the DMZ.

  B. The Expressway Edge must be put in a firewall DMZ segment.

  C. Cisco Unified Communications Manager zone can be either traversal server or client.

  D. The Unified Communications traversal zone can be used for Mobile and Remote Access.

  E. Both Expressway Edge interfaces can be NATed.

  Correct Answer: BD

• Question 46:

  Which statement about the Cisco Webex hybrid service is true?

  A. Expressway Connector is required for an on-premises Exchange server.

  B. Hybrid Message service works only with Jabber cloud deployment.

  C. Directory Connector is required for Azure AD.

  D. Directory Connector must be deployed for OBTP to work with on-premises video devices.

  Correct Answer: A

• Question 47:

  What allows endpoints behind a NAT to discover the paths through which they will pass media?

  A. RTP

  B. TLS

  C. SNMP

  D. ICE

  Correct Answer: D

  Reference: https://www.cisco.com/c/en/us/td/docs/solutions/PA/ICE/icepa125.html

• Question 48:

  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

  Correct Answer: A

  Reference: https://www.cisco.com/c/en/us/td/docs/solutions/PA/ICE/icepa125.html

• Question 49:

  Refer to the exhibit.

  

  What is the result of a transformation applied to alias 88514?

  A. [email protected]

  B. 88513@ccnpcollab com

  C. [email protected]

  D. [email protected]

  Correct Answer: C

  The answer should be [email protected], since the regex considers anything after digit 8 (excludes 1-7), leaves the rest intact, and replaces the domain. So in short terms, it simply adds the domain after the DN.

• Question 50:

  When designing the call control on a Cisco Expressway Core, which is the sequence of dial plan functions?

  A. transforms, CPL, user policy, search rules

  B. search rules, zones, local zones

  C. DNS zone, local zone, search rules

  D. search rules, transforms

  Correct Answer: A