300-820題庫更新資訊 - 300-820考試指南

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Cisco 300-820 Exam Overview:

Certification Vendor:	Cisco
Exam Name:	Implementing Cisco Collaboration Cloud and Edge Solutions (CLHCT) v2.0
Exam Number:	300-820 CLHCT
Certificate Validity Period:	3 years
Available Languages:	English
Exam Format:	Scenario-based questions, Multiple choice, Simulation-based questions
Related Certifications:	CCNP Collaboration
Recommended Training:	Cisco Learning Network
Exam Registration:	Cisco Certification Exam Registration
Sample Questions:	Cisco 300-820 Sample Questions
Exam Way:	Online proctored exam or authorized test center
Official Syllabus URL:	https://www.cisco.com/c/en/us/training-events/training-certifications/exams.html

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最新的 CCNP Collaboration 300-820 免費考試真題 (Q150-Q155):

問題 #150
Which two statements about Expressway media traversal are true? (Choose two.)

A. Cisco Unified Communications Manager zone can be either traversal server or client.
B. The Unified Communications traversal zone can be used for Mobile and Remote Access.
C. The Expressway Edge must be put in a firewall DMZ segment.
D. Expressway Control is the traversal server installed in the DMZ.
E. Both Expressway Edge interfaces can be NATed.

答案：B,C

解題說明：
Explanation
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-10/Cisco-Expressway

問題 #151
An administrator is configuring DNS to allow Mobile and Remote Access logins for the domain cisco.com. Where must the _collab-edge_tls.cisco.com DNS SRV record be configured?

A. in DNS SRV settings under Cisco Unified OS Administration in Cisco UCM
B. in DNS settings under Cisco Unified OS Administration in Cisco UCM
C. in the public DNS server
D. in DNS settings in the Expressway-E on the interface that faces the Internet

答案：C

問題 #152
Which complication does a NAT introduce in SDP for a SIP call?

A. The encryption keys advertised in the SDP are only valid for clients not behind a NAT.
B. The IP address specified in the connection data field may be an unrouteable internal address.
C. Additional headers due to NAT encapsulation can cause the packet size to exceed the MTU.
D. When the client is behind a NAT they may be unable to determine the appropriate offset due to time zones.

答案：B

解題說明：
The problem is that if NAT enabled, some firewalls doesn't write the translated address into the SIP Signalling (fortinet for example has VIP feature that make it works).

問題 #153
Which two statements about Mobile and Remote Access certificate are true? (Choose two.)

A. Expressway must generate certificate signing request.
B. Expressway Edge must use public CA signed certificate.
C. Expressway Core can use private CA signed certificate.
D. The Jabber client can work with public or private CA signed certificate.
E. You must upload the root certificates in the phone trust store.

答案：C,D

解題說明：
A certificate chain: a certificate can be signed by a Certificate Authority (CA) using its own private key. In turn, therefore, a certificate can be verified as being signed by a CA by checking the signature against the CA's certificate (public key). Web browsers and other clients have a list of CA certificates that they trust, and can thus verify the certificates of individual servers.
https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-9/Cisco-Expressway-Certificate-Creation-and-Use-Deployment-Guide-X8-9.pdf CA-signed certificates (Recommended) - Users are not prompted because you are installing the certificate on the devices yourself. CA-signed certificates can be signed by a Private CA or a Public CA.
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/jabber/14_1/cjab_b_planning-guide-for-jabber141/cjab_m_planning-security-and-certificates-129.html

問題 #154
An enterprise is implementing Cisco Webex Hybrid Data Security to control their encryption keys on-premises and comply with data regulations. The deployment requires:
- setting up HDS nodes with proper configuration including certificates and database credentials
- configuring network and proxy settings as per enterprise policy to
connect securely to the Webex cloud
- ensuring redundancy and failover by deploying multiple nodes in a
cluster
Which two actions must the administrator take to configure the hybrid data security deployment?
(Choose two.)

A. Use a single HDS node without clustering to reduce deployment complexity.
B. Configure proxy settings on HDS nodes if internet access requires it for cloud connectivity.
C. Store encryption keys solely in the Cisco Webex cloud to avoid on-premises management complexities.
D. Enable guest access on HDS nodes to simplify user connections outside the enterprise network.
E. Use the HDS Setup Tool to generate and apply a configuration ISO that contains certificates, database credentials, and network settings.

答案：B,E

解題說明：
Hybrid Data Security nodes are configured using the HDS Setup Tool, which creates the configuration ISO containing required deployment details such as certificates, database credentials, and network settings. Proxy settings must also be configured when the enterprise requires proxy-based internet access so the HDS nodes can securely connect to the Webex cloud.

問題 #155
......

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