Free Cisco 300-820 Test Practice Test Questions Exam Dumps
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NEW QUESTION # 51
What is a requirement when configuring the Cisco Webex Hybrid Message account for accessing the API of the Cisco UCM IM and Presence Service?
- A. Use the main administrator account if it includes the "Standard AXL API Access" role
- B. Use an application user not the main administrator account with the "Standard AXL API Access" role
- C. Use an application user with only the "Standard CTI Allow Control of All Devices" role
- D. Add a new end-user with the "Standard AXL API Access" role
Answer: B
NEW QUESTION # 52
In a Webex Video Mesh deployment, where do Cloud-registered Webex Teams clients and devices send signaling traffic for call setup?
- A. to an Expressway-E server
- B. to a remote Video Mesh node
- C. directly to the Webex cloud
- D. to a local Video Mesh node
Answer: C
NEW QUESTION # 53
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 an intermediate certificate to the Expressway-C that is signed by a certificate authority.
- B. Configure the Expressway-C Traversal Client zone transport protocol with TCP.
- C. Configure the Expressway-C Traversal Client zone Peer 1 address with the fully qualified domain name of the Expressway-E.
- D. Add a server certificate to the Expressway-C that is signed by a certificate authority.
Answer: D
NEW QUESTION # 54
Refer to the exhibit.
Which inbound connection should an administrator configure on the outside firewall?
- A. XMPP TCP 5222
- B. SIP TCP 5061
- C. HTTPS (tunneled over SSH between C and E): TCP 2222
- D. Media: UDP 36000 to 36011
Answer: D
NEW QUESTION # 55
What allows endpoints behind a NAT to discover the paths through which they will pass media?
- A. TLS
- B. RTP
- C. SNMP
- D. ICE
Answer: D
NEW QUESTION # 56
Refer to the exhibit.
Cisco Unified Communications Manager routes the call via the Webex Meetings route list and route group to the Video Mesh cluster Node#1 in the Video Mesh cluster is hosting the meeting and has reached full capacity, but other nodes in the cluster still have spare capacity.
What happens to the participant's call?
- A. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.
- B. The call is queued.
- C. Another node in the cluster is used and an intra-cluster cascade between Webex and the new Video Mesh node is formed.
- D. The call fails.
Answer: C
NEW QUESTION # 57
In Cisco Expressway, which information from an incoming search request does the pre-search transform configuration allow to be modified?
- A. called address
- B. CUD
- C. calling party
- D. Source IP address
Answer: A
NEW QUESTION # 58
An engineer must fix broken SSH tunnels between Expressway-C (192.168.10.5) and Expressway-E (192.168.20.5). The engineer is advised that the packet capture shows the required packets for the SSH tunnels leaving the Expressway-C but not reaching the Expressway-E. Which firewall configuration must the engineer allow to resolve this issue?
- A. port 7001 from Expressway-E to Expressway-C
- B. port 2222 from Expressway-E to Expressway-C
- C. port 7001 from Expressway-C to Expressway-E
- D. port 2222 from Expressway-C to Expressway-E
Answer: C
NEW QUESTION # 59
Refer to the exhibit. Which SIP trunk security profile configuration on the Cisco UCM server is used for a secured SIP trunk to an Expressway server that is already integrated with the Cisco UCM for Mobile and Remote Access?
- A. Device Security Mode: Encrypted
Incoming Transport Type: TLS
Outgoing Transport Type: TLS
Incoming Port*: 5061 - B. Device Security Mode: Authenticated
Incoming Transport Type: TLS
Outgoing Transport Type: TLS
Incoming Port*: 6061 - C. Device Security Mode: Encrypted
Incoming Transport Type: TLS
Outgoing Transport Type: TLS
Incoming Port*: 6061 - D. Device Security Mode: Non-Secure
Incoming Transport Type: TCP+UDP
Outgoing Transport Type: TCP
Incoming Port*: 5060
Answer: C
NEW QUESTION # 60
Which two statements about Expressway media traversal are true? (Choose two.)
- A. Expressway Control is the traversal server installed in the DMZ.
- B. Both Expressway Edge interfaces can be NATed.
- C. Cisco Unified Communications Manager zone can be either traversal server or client.
- D. The Expressway Edge must be put in a firewall DMZ segment.
- E. The Unified Communications traversal zone can be used for Mobile and Remote Access.
Answer: D,E
NEW QUESTION # 61
An administrator made changes to a directory connector for Webex AD synchronization. The number of users synchronized is quite large and the change should affect only a limited number of users. How can the administrator check the result before executing the synchronization?
- A. Initiate an incremental synchronization from the Director Connector app on the on-premises Windows server because it will ask to save the changes.
- B. Initiate a dry run of an incremental synchronization from the Director Connector in Control Hub.
- C. Initiate a dry run of an incremental synchronization from the Director Connector app on the on-premises Windows server.
- D. Initiate an incremental synchronization from the Director Connector in Control Hub because it will ask to save changes.
Answer: D
NEW QUESTION # 62
A MRA deployment is being configured where one of the requirements is for registered Jabber users to pull directory photos from an internal server. What should be configured on the Expressway-C so that MRA registered clients reach this server?
- A. A neighbor zone must be created to the directory photo server.
- B. The directory photo server must be added to the HTTP allow list.
- C. A search rule must be created to route the requests to Cisco UCM.
- D. The directory photo server FQDN must be added to the Expressway-C certificate.
Answer: B
NEW QUESTION # 63
Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?
- A. _cisco-expwy._tls.<domain>
- B. _collab-edge._tls.<domain>
- C. _cisco-mra._tls.<domain>
- D. _cisco-uds._tcp.<domain>
Answer: B
NEW QUESTION # 64
Employees at company A must call employees at company B in an extension range of [email protected]. Both companies have a Cisco collaboration infrastructure. All required zones are configured in Cisco Expressways at company A. What must be configured on the Expressway at company A to enable outbound B2B calls?
- A. call policy rule from the DNS zone to allow a destination pattern of 4[1-9]@companyB.com
- B. search rule with a regex pattern of [4]\d{3}@companyB\.com that targets the DNS zone
- C. call policy rule from the neighbor zone to allow a destination pattern of 4[1-9]@companyB.com
- D. search rule with a suffix pattern of *[email protected] that targets the neighbor zone
Answer: D
NEW QUESTION # 65
Which media encryption mode can be configured on an Expressway zone?
- A. Triple Data Encryption Standard
- B. force unencrypted
- C. Advanced Encryption Standard
- D. IPsec
Answer: B
NEW QUESTION # 66
What is a key configuration requirement for Hybrid Message Service High Availability deployment with multiple IM and Presence clusters?
- A. AXL service should be activated only on the publisher of each IM and Presence cluster.
- B. You must have the Intercluster Sync Agent working across your IM and Presence clusters.
- C. Your IM and Presence Service clusters must have Multiple Device Messaging disabled.
- D. You must have the Intercluster Lookup Service working across all of your IM and Presence clusters.
Answer: B
Explanation:
The Cisco Sync Agent must be running on the database publisher node of each intercluster peer on the local and remote IM and Presence database publisher nodes.
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/im_presence/configAdminGuide/11_
5_1/cup0_b_config-and-admin-guide-1151su5/cup0_b_imp-system-configuration-
1151su5_chapter_01100.pdf
NEW QUESTION # 67
What it is the purpose of using ICE for Mobile and Remote Access endpoints in the Cisco Collaboration infrastructure?
- A. ICE enablement allows for the Cisco Collaboration endpoint to register through Expressway servers to Cisco Unified Communications Manager behind a firewall.
- B. ICE controls the bandwidth usage for Cisco Collaboration endpoints if the endpoints are located outside the company network.
- C. ICE uses FAST updates to optimize the video quality in case of packet loss. This technology is available only from Cisco Unified CM version 11.5 and later.
- D. ICE enables Cisco Collaboration endpoints to determine if there is direct connectivity between them.
Answer: D
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/solutions/PA/ICE/icepa125.html
NEW QUESTION # 68
An employee has recently left an organization and a manager suspects that this employee may have made changes to the system that no one is aware of. Mobile and Remote Access registration is not working. Internal communications appear to be working, but no external system is able to register or call anywhere. While investigating this problem, it is discovered that no internal systems are able to call externally either. What is the TraversalZone missing that is causing this issue?
- A. pipe to the DefaultZone
- B. route pattern to the DefaultZone
- C. link to the DefaultZone
- D. SIP trunk to the DefaultZone
Answer: C
NEW QUESTION # 69
Refer to the exhibit.
Which inbound connection should an administrator configure on the outside firewall?
- A. XMPP TCP 5222
- B. SIP TCP 5061
- C. HTTPS (tunneled over SSH between C and E): TCP 2222
- D. Media: UDP 36000 to 36011
Answer: B
NEW QUESTION # 70
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?
- A. the lowest STUN round-trip delay to each node and cloud
- B. an HTTPS speed and latency test to each node and the cloud
- C. a reachable Video Mesh Node and then overflows to the cloud, if needed
- D. the SIP delay header during call setup
Answer: C
NEW QUESTION # 71
An administrator is enabling Mobile and Remote Access login for the Cisco UCM registration domain cisco.com. Phones are registered with a Cisco UCM phone security profile name of securephone.cisco.com. Which two subject alternative names must be configured? (Choose two.)
- A. cisco.com on the Expressway-E certificate
- B. Securephone.cisco.com on the Expressway-E certificate
- C. Securephone.cisco.com on the CallManager certificate
- D. cisco.com on the Expressway-C certificate
- E. Securephone.cisco.com on the Expressway-C certificate
Answer: A,E
NEW QUESTION # 72
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 remains in the same zone.
- B. 13358 is sent directly 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 then is sent to the traversal zone.
Answer: B
Explanation:
RegEx pattern is 1?3+5. The 1 has a question mark after it, meaning the 1 is optional and not required, but matches in this case. The 3+ says that 3 is mandatory and must occur at least 1 or more times prior to the 5. The 5 is mandatory, and matches after the double 33.
Dialing 13358 does NOT match RegEx because the 8 was included, so the Rule does not do the replace, and the 13358 is sent unchanged.
NEW QUESTION # 73
Refer to the exhibit. Call policy rules on an Expressway-E prevent external callers from the internet from calling a VIP whose URI is [email protected]. Which additional configuration setting is required for this call policy to function as intended?
- A. The default zone on the Expressway-E must not be configured to treat as authenticated.
- B. SIP TLS must be disabled on the Expressway-E.
- C. The Cisco TelePresence endpoint registered with the URI [email protected] must be set in "do not disturb" mode.
- D. A search rule must be configured with an extract match for [email protected] to pass the call to the Expressway-C.
Answer: A
NEW QUESTION # 74
What is one of the user-related prerequisites for Jabber Team Messaging Mode Installation?
- A. Create user accounts in Cisco Unified IM and Presence.
- B. Create user accounts in Cisco Unified CM and Cisco Webex Control Hub.
- C. Create user accounts in Cisco Unified Communications Manager only.
- D. Create user accounts in Cisco Webex Control Hub only.
Answer: B
NEW QUESTION # 75
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