最近更新された2023年11月テストエンジン練習テストは300-820試験問題解答！ [Q18-Q36]

最近更新された2023年11月テストエンジン練習テストは300-820試験問題解答！

Implementing Cisco Collaboration Cloud and Edge Solutions認定サンプル問題と練習試験合格させます

質問 # 18
Between which two DTMF relay methods does the Expressway support interworking? (Choose two.)

A. passthrough
B. RFC 2833
C. unsolicited notify
D. KPML
E. H.245 user input indication

正解：B、E

質問 # 19
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 Firepower Firewall
B. Cisco Unified Border Element and Cisco ASA Firewall
C. Cisco Expressway-C and Cisco Unified Border Element
D. Cisco Expressway-C and Cisco Expressway-E

正解：D

質問 # 20
Which mode should be used when Call Policy is configured on Expressways?

A. local CPL, policy service, and off
B. extended CPL
C. on
D. remote CPL

正解：C

解説：
Explanation
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/admin_guide/Cisco-Expressway-Admin

質問 # 21
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. SIP trunk to the DefaultZone
B. pipe to the DefaultZone
C. route pattern to the DefaultZone
D. link to the DefaultZone

正解：D

質問 # 22
Jabber cannot log in via Mobile and Remote Access. You inspect Expressway-C logs and see this error message:
XCP_JABBERD Detail="Unable to connect to host '%IP%', port 7400:(111) Connection refused"
Which is the cause of this issue?

A. The XCP Service is not activated on Expressway-E.
B. Rich Media Session licenses are not activated on Expressway-E.
C. The destination port for Expressway-E is set to 7400 instead of 8443 on the Expressway-C.
D. Expressway-E is listening on the wrong IP interface.

正解：D

質問 # 23
What allows endpoints behind a NAT to discover the paths through which they will pass media?

A. TLS
B. RTP
C. ICE
D. SNMP

正解：C

質問 # 24
Which protocol should be used to verify the connectivity for different media paths found during a call using ICE?

A. RTP
B. STUN
C. TURN
D. SNMP

正解：B

質問 # 25
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. The existing zone using ID 7 must be deleted
B. More bandwidth must be added to the appropriate pipes
C. The search rule must be changed to continue on match
D. The underlying DNS issue must be resolved

正解：D

質問 # 26
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. XMPP TCP 5222
D. Media: UDP 36000 to 36011

正解：D

質問 # 27
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. Configure the Expressway-C Traversal Client zone transport protocol with TCP.
B. Add a server certificate to the Expressway-C that is signed by a certificate authority.
C. Configure the Expressway-C Traversal Client zone Peer 1 address with the fully qualified domain name of the Expressway-E.
D. Add an intermediate certificate to the Expressway-C that is signed by a certificate authority.

正解：D

質問 # 28
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. an HTTPS speed and latency test to each node and the cloud
B. the lowest STUN round-trip delay to each node and cloud
C. the SIP delay header during call setup
D. a reachable Video Mesh Node and then overflows to the cloud, if needed

正解：D

質問 # 29
Which part of a hybrid cloud-based deployment with Cisco Webex Messenger Service is used for meeting capabilities?

A. Cisco Webex Meeting Center is always used for meeting capabilities.
B. Depending on the media flow, the Webex Meeting Center or local Cisco Unified CM meeting resources are used for meeting capabilities.
C. Cisco Unified CM is always used for meeting capabilities.
D. Depending on the origin of the user, the Webex Meeting Center or local Cisco Unified Communications Manager meeting resources are used for meeting capabilities.

正解：D

質問 # 30
When deploying an Expressway Core and Expressway Edge cluster for mobile and remote access, which TLS verify subject name must be configured on the Expressway-E UC traversal zone?

A. Expressway-E Cluster Name
B. Cisco Unified Communications Manager Publisher FQDN
C. Expressway-C Cluster Name
D. Webex CUSP Cluster Name

正解：C

解説：
Explanation
https://community.cisco.com/t5/telepresence-and-video/quot-peer-s-tls-certificate-identity-was-unacceptable-quo

質問 # 31
Which mechanism does TLS use to validate identity?

A. IP address of the peer
B. username and a password
C. shared secret
D. server certificate

正解：C

質問 # 32
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.

正解：C

質問 # 33
Which step is required when configuring Cisco Webex Hybrid Message Service?

A. Register Expressway-C to Cisco UCM.
B. Add Cisco Unity Connection to Expressway-E.
C. Add Expressway-C and Cisco UCM to the Cisco Webex Cloud.
D. Register Expressway-C Connector Hosts to the Cisco Webex Cloud.

正解：D

質問 # 34
Which two types of information does Cisco Expressway back up? (Choose two.)

A. current call states
B. IP addresses
C. security certificates
D. log files
E. call records

正解：C、E

解説：
The data saved to a backup file includes:
- Bootstrap key (from X8.11)
- System configuration settings
- Clustering configuration
- Local authentication data (but not Active Directory credentials for remotely managed accounts)
- User account and password details
- Server security certificate and private key
- Call detail records (if the CDR service on Expressway is enabled)
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/admin_guide/Cisco- Expressway-Administrator-Guide-X8-11-4.pdf

質問 # 35
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?