時間限定無料ダウンロード 最新の300-820問題集で2025年最新の300-820試験問題
最新のCisco 300-820認定の練習テスト問題
この試験に合格するためには、受験者はCisco Collaboration CloudおよびEdge Solutionsについて深い理解を持っている必要があります。最新の技術トレンドに精通しており、これらのソリューションの構成と展開に実践的な経験を持っていることが必要です。また、業界の最新のセキュリティプロトコルとベストプラクティスについての知識も必要です。
Cisco 300-820 試験は、Cisco Collaboration Cloud および Edge ソリューションの実装における専門知識を証明することを目的としています。この試験は、コールコントロールとモビリティ、コラボレーションアプリケーション、およびエッジサービスなど、コラボレーションクラウドとエッジソリューションに関連するさまざまなトピックについての候補者の知識をテストします。この試験に合格することは、Cisco Certified Specialist - Collaboration Cloud and Edge Implementation 認定を取得したい人にとって重要です。
質問 # 16
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 Webex and the new Video Mesh node is formed.
- B. The call fails.
- C. The call is queued.
- D. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.
正解：A
質問 # 17
A company has a single Expressway-E that exhibits high resource utilization. An engineer checks the logs and finds numerous fraudulent attempts from sip:[email protected]. Where must the engineer go to configure a call policy rule and block the desired URI?
- A. Configuration > Policy > Inbound > Rules
- B. Configuration > Call Policy > Rules
- C. Call History Configuration > Call Policy > Rules
- D. Configuration > Call History > Policy > Rules
正解：B
質問 # 18
An organization wants to enable a Cisco Webex connector to synchronize all employees automatically with Cisco Webex instead of using a manual list.
Where is the Webex Hybrid Directory Service configured?
- A. Enable the directory service in Cisco Unified Communications Manager under Cisco Unified Serviceability and add the service in Webex Control Hub.
- B. Install the Cisco Express Connector and configure the device in Cisco Unified Communications Manager under Cisco Unified Serviceability and add the service in Webex Control Hub.
- C. Install Cisco Directory Connector on a Microsoft Windows Domain server and configure the software and Webex Control Hub.
- D. Enable the directory service on Cisco Expressway Edge for Office 365 or Cisco Expressway Core for internal Active Directory and add the service in Webex Control Hub.
正解：C
質問 # 19
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 C
- B. Option D
- C. Option A
- D. Option B
正解：B
質問 # 20
With QoS enabled, which two statements about the Cisco Webex Video Mesh Node signaling and media traffic are true? (Choose two.)
- A. From VMN to CUCM SIP endpoints, the source UDP ports from 52500 to 62999 is used for audio traffic.
- B. From Webex cloud to VMN, the source UDP port 9000 is used for audio traffic.
- C. From VMN to video endpoints, the destination UDP port 5004 is used for audio traffic.
- D. From VMN to Webex Teams clients, the source UDP port 5004 is used for video traffic.
- E. From VMN to Webex cloud, the destination UDP port 9000 is used for video traffic.
正解：A、D
解説：
質問 # 21
Which commands disable SIP Inspection on the Cisco ASA FirePOWER firewall?
- A. hostname#no inspect sip
- B. hostname(config)#no inspect_sip
- C. hostname(config)#policy-map global_policy
hostname(config-pmap)#class-map inspection default
hostname(config-pmap)#no inspect_sip - D. hostname(config)#policy-map global_policy
hostname(config-pmap)#class-map inspection_default
hostname(config-pmap)#no inspect sip
正解：D
質問 # 22
What is the default file extension for saving Cisco Expressway-C backups when using the Google Chrome browser?
- A. .tar.tar.gz
- B. .zip
- C. .tar.gz.gz
- D. .tar.gz.enc
正解：D
質問 # 23
Refer to the exhibit.
Mobile Cisco Jabber cannot register with on-premises Cisco Unified Communications Manager using Mobile and Remote Access. Some logs were captured on Expressway Edge.
Which action corrects this problem?
- A. Ensure that the credential has been entered correctly.
- B. Ensure that the peer address does not match the Common Name on certificate.
- C. Ensure that the _cisco-uds SRV record has been configured.
- D. Ensure that the SIP domains are added on Expressway Core.
正解：A
質問 # 24
An organization with a domain name of example.com.
Which two SRV records are valid for a SIP and H.323 communication? (Choose two.)
- A. _sips._tcp.example.com
- B. _h323ls._tcp.example.com
- C. _collab-edge._tls.example.com
- D. _sips._udp.example.com
- E. _h323ls._udp.example com
正解：A、E
解説：
The format of DNS SRV queries for sip (RFC 3263) and H.323 used by Expressway are:
_sips._tcp.<fully.qualified.domain>
_sip._tcp.<fully.qualified.domain>
_sip._udp.<fully.qualified.domain> - not recommended for video calls, only use for audio-only calls
_h323ls._udp.<fully.qualified.domain> - for UDP location (RAS) signaling, such as LRQ
_h323cs._tcp.<fully.qualified.domain> - for H.323 call signaling
The format of DNS SRV queries for sip (RFC 3263) and H.323 typically used by an endpoint are:
_sips._tcp.<fully.qualified.domain>
_sip._tcp.<fully.qualified.domain>
_sip._udp.<fully.qualified.domain> - not recommended for video calls, only use for audio-only calls
_h323ls._udp.<fully.qualified.domain> - for UDP location (RAS) signaling, such as LRQ
_h323cs._tcp.<fully.qualified.domain> - for H.323 call signaling
_h323rs._udp.<fully.qualified.domain> - for H.323 registrations
質問 # 25
Within which cache timeline do the Webex App endpoints perform a STUN test to calculate round-trip delay time to available media node clusters?
- A. 2 hours
- B. 6 hours
- C. 1 hour
- D. 4 hours
正解：A
解説：
The cache expiry time for media node discovery is 2 hours. When new Video Mesh Nodes are added to a deployment, it may take Webex Teams endpoints up to 2 hours to recognize this event. Restarting a Webex Teams endpoint will force the endpoint to perform connectivity and STUN tests again and to recognize the new Video Mesh Node.
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Collaboration/hybrid/12x/hybcvd/hms.html?
bookSearch=true
質問 # 26
Which action is required when using Cisco Jabber for Cloud with Cisco Webex Messenger?
- A. Configure desk phone control.
- B. Configure policies.
- C. Configure, extend, and connect.
- D. Configure service discovery for remote access.
正解：D
質問 # 27
An administrator must configure the DNS SRV records for Mobile and Remote Access for a company with the domain example.com, the Expressway-E FQDN is ExpE.example.com, and the Expressway-C FQDN is Exp-C.example.com. What must the administrator configure to allow external clients to discover the Expressway-E server?
- A. SRV record _cisco-uds._tcp.example.com that resolves to ExpE.example.com on port 5061
- B. SRV record _collab-edge._tls.example.com that resolves ta ExpE.example.com on port 5061
- C. SRV record _cisco-uds._tcp.example.com that resolves to ExpC.example.com on port 8443
- D. SRV record _collab-edge._tls.example.com that resolves to ExpE.example.com on port 8443
正解：D
解説：
To allow external clients to discover the Expressway-E server, the administrator must configure the SRV record _collab-edge._tls.example.com that resolves to ExpE.example.com on port 8443.
This SRV record is used for Mobile and Remote Access to allow external clients to connect securely to the Expressway-E server. The _collab-edge._tls prefix is used to identify the service as a "collaboration edge" service and the .example.com suffix is the domain name for the organization. Port 8443 is the default port used for secure HTTPS connections to the Expressway-E server.
質問 # 28
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. incorrect login credentials
- B. XMPP bind failures
- C. service discovery issues
- D. down Cisco Unified Communications Manager server
正解：B
質問 # 29
An engineer must enable the communication between two separate Expressway-C servers to allow inbound and outbound calling between different endpoints registered on each server. Which configuration must happen?
- A. Configure a neighbor zone on each server with a destination of the other Expressway-C.
- B. Configure a transform on each server to convert the calling alias into the called alias.
- C. Configure a transform on each server to strip the port numbers at the end of the alias.
- D. Configure a traversal zone on each server with a destination of the other Expressway-C.
正解：C
質問 # 30
Which two types of information does Cisco Expressway back up? (Choose two.)
- A. current call states
- B. security certificates
- C. call records
- D. log files
- E. IP addresses
正解：A、B
質問 # 31
Refer to the exhibit. You have Cisco Expressway using SIP for external calls. SIP Nat/Alg is configured on the edge firewall. The call fails with one way audio. Which problem with the configuration?
- A. The security certificate used by Cisco Expressway is not valid
- B. The Apache service was not restarted on Cisco Unified Communications Manager after SIP TLS was configured.
- C. Secure SIP (TLS) is not supported by the firewall.
- D. SIP NAT is not enabled for TLS
正解：D
質問 # 32
Cisco Expressways are being deployed for Mobile and Remote Access. The Expressway-E internal interface (LAN1) IP is 192.168.100.10/24, and the external interface (LAN2) IP is
172.16.100.10/24.
The Expressway-C IP is 192.168.20.10/24. The default gateway for each subnet is the first useable address. How must the Expressway-E be configured to allow proper routing to the internal and external networks?
- A. IPv4 gateway: 192.168.100.1, and a static route for the 192.168.20.0/24 subnet using LAN1
- B. IPv4 gateway: 172.16.100.1, and a static route for the 192.168.100.0/24 subnet using LAN1
- C. IPv4 gateway: 192.168.100.1, and a static route for the 172.16.100.0/24 subnet using LAN2
- D. IPv4 gateway: 172.16.100.1, and a static route for the 192.168.20.0/24 subnet using LAN1
正解：D
質問 # 33
Refer to the exhibit.
When a Jabber user attempts to connect from outside of the organization, the user enters the login information as "[email protected]" and receives the error "Cannot find your services Automatically". The engineer tries to resolve SRV records used by Jabber.
DNS A record "expressway-e.example.com" points to the Expressway-E IP and "cucm.example.com" points to the Cisco Unified Communications Manager.
Which change resolves the DNS problem?
- A. Change the priority of the SRV record for cisco-uds.
- B. Change the collab-edge record to point to 5061.
- C. Change cisco-uds to point to the Expressway-E FQDN.
- D. Remove the cisco-uds SRV record for the external DNS.
正解：D
質問 # 34
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. Video Mesh Cluster-2
- C. Cloud Node US-EAST
- D. Cloud Node US-WEST
正解：B
質問 # 35
Which SIP media encryption mode is applied by default for newly created zones in the Cisco Expressway?
- A. Best Effort
- B. Force Encrypted
- C. C.......
- D. Auto
正解：D
質問 # 36
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. Add a new end-user with the "Standard AXL API Access" role
- C. Use an application user not the main administrator account with the "Standard AXL API Access" role
- D. Use an application user with only the "Standard CTI Allow Control of All Devices" role
正解：C
質問 # 37
An engineer attempts to upload a server certificate to an Expressway-C server but receives an error when they click the upload button that says that the file is invalid. The engineer is advised that this happens because the certificate was signed incorrectly and is missing an attribute. What must the engineer do to upload the certificate?
- A. Create a new certificate template with the certificate attribute "Allow private key to be exported" enabled and use this template when signing the Expressway server certificate.
- B. Create a certificate request via Certificate Services Web Page and ensure that the certificate validity period is five years because the Expressway server validates this during certificate import.
- C. Create a new certificate template with "Server authentication" and "Client authentication" enabled and use this template when signing the Expressway server certificate.
- D. Create a certificate request via the Certificate Services Web Page and ensure that the Subject Common Name field contains the server FQDN and all Cisco Unified CM phone security profile names.
正解：C
解説：
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X15-
0/mra/exwy_b_mra-deployment-guide-x150.pdf
質問 # 38
Refer to the exhibit.
Which two outbound connections should an administrator configure on the internal firewall? (Choose two.)
- A. XMPP: TCP 7400
- B. Media: UDP 36012 to 59999
- C. SIP: TCP 7001
- D. HTTPS: TCP 8443
- E. SIP TCP 5061
正解：A、C
質問 # 39
......
Cisco 300-820認定試験は、クラウドおよびオンプレミスでコラボレーションソリューションの実装とトラブルシューティングの専門知識を実証したいITプロフェッショナルに最適です。適切な準備とトレーニングにより、候補者は試験に合格し、この貴重な認証を獲得できます。これにより、キャリアを進めて専門的な目標を達成できます。
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