300-820 Free Update With 100% Exam Passing Guarantee [2021]
[Oct-2021] Verified Cisco Exam Dumps with 300-820 Exam Study Guide
NEW QUESTION 15
A company is installing Cisco Collaboration infrastructure and one of the requirements is that they must be able to communicate with many external parties that are using H.323 and SIP. Internally they want to register the endpoints only on SIP.
Which functionality would describe the feature that needs to be enabled and where to achieve this?
- A. Interworking in Cisco Unified Communications Manager
- B. Interworking in Expressway-C
- C. Transcoding in Expressway-C
- D. Transcoding in Cisco Unified Communications Manager
Answer: D
NEW QUESTION 16
Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?
- A. _collab-edge._tls.<domain>
- B. _cisco-expwy._tls.<domain>
- C. _cisco-mra._tls.<domain>
- D. _cisco-uds._tcp.<domain>
Answer: A
NEW QUESTION 17
Refer to the exhibit.
An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9.
Which value should be entered into the "Source" field to prevent toll fraud regardless at origin of the call?
- A. All
- B. Any
- C. Traversal Zone
- D. Neighbor Zone
Answer: B
NEW QUESTION 18
When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?
- A. SDP m-line
- B. SDP b-line
- C. SIP record route
- D. SDP c-line
Answer: C
NEW QUESTION 19
When designing the call control on a Cisco Expressway Core, which is the sequence of dial plan functions?
- A. search rules, zones, local zones
- B. transforms, CPL, user policy, search rules
- C. search rules, transforms
- D. DNS zone, local zone, search rules
Answer: C
NEW QUESTION 20
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 Jabber client must register to the Cisco UCM internally before it will register externally.
- B. The private CA certificate must be placed in the phone trust store.
- 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.
Answer: D
NEW QUESTION 21
Which statement about scheduling Expressway backups is true?
- A. It is not supported on the application.
- B. It is allowed from the application CLI and GUI of the Expressway.
- C. It is allowed from the application GUI of the Expressway only.
- D. It is allowed from the application CLI of the Expressway only.
Answer: B
NEW QUESTION 22
Refer to the exhibit.
A new neighbor zone is added for a new Cisco Meeting Server, but the zone is showing a SIP status of failed from the time the zone it was created. What should be done to resolve this issue?
- A. More bandwidth must be added to the appropriate pipes
- B. The search rule must be changed to continue on match
- C. The underlying DNS issue must be resolved
- D. The existing zone using ID 7 must be deleted
Answer: B
NEW QUESTION 23
What is configured on the Expressway-E to successfully route calls from Expressway-C on the internal network to the Internet?
- A. The Expressway-E is enabled for interworking
- B. A static NAT route is added to the firewall to bridge the two networks.
- C. The Expressway-E is enabled for Dual-NIC capability.
- D. Application layer gateway is enabled to bridge the media traffic.
Answer: C
NEW QUESTION 24
Refer to the exhibit.
When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?
- A. 13358 is sent directly to the traversal zone.
- B. 13358 is replaced by 135, and then is sent to the traversal zone.
- C. 13358 is replaced by 135, and then is sent to the local zone.
- D. 13358 is replaced by 135 and remains in the same zone.
Answer: B
NEW QUESTION 25
Which two statements about Cisco Webex Video Mesh Nodes are true? (Choose two.)
- A. The cascading traffic between VMN must bypass the firewall.
- B. When Expressway Core works with VMN clusters, Expressway Core decides which VMN is used for signaling/media connection.
- C. A VMN can terminate a media connection while operating in maintenance mode.
- D. When Cisco Unified Communications Manager works with multiple VMNs, Cisco Unified CM decides which VMN is used for signaling connection.
- E. Cloud-registered devices choose a VMN cluster based on the lowest STUN round trip delay.
Answer: D,E
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Collaboration/hybrid/12x/hybcvd/hms.html
NEW QUESTION 26
Which configuration is required when implementing Mobile and Remote Access on Cisco Expressway?
- A. SAML authentication
- B. SSO
- C. Cisco Unified CM publisher address
- D. IPS
Answer: C
NEW QUESTION 27 
Refer to the exhibit. Which description of the transformation is true?
- A. It changes all patterns that begin with [email protected]:<port> to [email protected]
- B. It converts [email protected]:<port> to [email protected]
- C. It converts [email protected]:<port> to [email protected]
- D. It changes [email protected]:<port> to [email protected]
Answer: B
NEW QUESTION 28
Refer to the exhibit.
When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?
- A. 13358 is replaced by 135, and then is sent to the local zone.
- B. 13358 is replaced by 135, and then is sent to the traversal zone.
- C. 13358 is sent directly to the traversal zone.
- D. 13358 is replaced by 135 and remains in the same zone.
Answer: C
NEW QUESTION 29
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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?
- A. The Expressway-E certificate includes the Expressway-C FQDN as a SAN entry
- B. In 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
- C. The Expressway-E does not have the FQDN of Cisco UCM listed as a SAN in its certificate
- D. The Expressway-C is missing the FQDN of Cisco UCM in the Common Name of its certificate
Answer: C
NEW QUESTION 30
Refer to the exhibit.
Which inbound connection should an administrator configure on the outside firewall?
- A. HTTPS (tunneled over SSH between C and E): TCP 2222
- B. SIP TCP 5061
- C. Media: UDP 36000 to 36011
- D. XMPP TCP 5222
Answer: C
NEW QUESTION 31
Refer to the exhibit.
An Expressway-C and Expressway-E are configured for B2B calling and the Expressway- E zone is set to TLS Verify Currently, calls do not reach the Expressway-C. The Traversal Client zone on the Expressway-C for B2B reports the information in the exhibit for the Peer 1 address.
Which action resolves this error?
- A. Add a server certificate to the Expressway-C that is signed by a certificate authority.
- B. Configure the Expressway-C Traversal Client zone Peer 1 address with the fully qualified domain name of the Expressway-E.
- C. Add an intermediate certificate to the Expressway-C that is signed by a certificate authority.
- D. Configure the Expressway-C Traversal Client zone transport protocol with TCP.
Answer: A
NEW QUESTION 32
Refer to the exhibit.
An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9.
Which value should be entered into the "Source" field to prevent toll fraud regardless at origin of the call?
- A. All
- B. Any
- C. Traversal Zone
- D. Neighbor Zone
Answer: B
NEW QUESTION 33
Refer to the exhibit.
While troubleshooting Cisco Jabber login issues, there are some error messages. Why is the Jabber client unable to sign in?
- A. down Cisco Unified Communications Manager server
- B. XMPP bind failures
- C. incorrect login credentials
- D. service discovery issues
Answer: B
NEW QUESTION 34
Which connection does the traversal zone configuration define?
- A. Cisco Expressway-C and Cisco Expressway-E platforms
- B. Cisco UCS E-Series and Cisco UCM
- C. Expressway-E and Collaboration Endpoints
- D. Cisco UC and Cisco Unified Presence Server
Answer: A
NEW QUESTION 35
Refer to the exhibit.
The firewall has been configured from NAT 192.168.108.2 to 100.64.0.1. Which configuration changes are needed for an Expressway-E with dual network interfaces?
A)
B)
C)
D)
- A. Option A
- B. Option D
- C. Option B
- D. Option C
Answer: B
NEW QUESTION 36
Refer to the exhibit.
Which two outbound connections should an administrator configure on the internal firewall? (Choose two.)
- A. SIP: TCP 7001
- B. HTTPS: TCP 8443
- C. XMPP: TCP 7400
- D. SIP TCP 5061
- E. Media: UDP 36012 to 59999
Answer: A,C
NEW QUESTION 37 
Refer to the exhibit. If the Webex Teams device cannot connect to Video Mesh Cluster-1 because it is busy, which media node does the Webex Teams device connect to next?
- A. Both Cloud Node US-EAST and US-WEST
- B. Cloud Node US-WEST
- C. Cloud Node US-EAST
- D. Video Mesh Cluster-2
Answer: D
NEW QUESTION 38
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