Cisco 300-810 Practice Test - Questions Answers, Page 19

These two options are the benefits of deploying OAuth in a Cisco UCM environment that uses Cisco Jabber or Cisco Webex for on-premises calling. OAuth is an authorization protocol that allows users to grant access to third-party applications without sharing their credentials. In a Cisco UCM environment, OAuth allows Jabber and Webex clients to obtain access tokens from UCM after authenticating with their credentials once. The access tokens can then be used to access various resources, such as call control, voicemail, directory, and presence. The access tokens have a limited lifetime, but they can be refreshed using refresh tokens, which have a longer lifetime. This way, the users do not need to re-authenticate frequently and can enjoy a seamless user experience.

Reference:

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/12_5_1/systemConfig/cucm_b_system-configuration-guide-1251/cucm_b_system-configuration-guide-1251_chapter_0100110.html

https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/jabber/11_9/Unified-CM-OAuth-Whitepaper-v17-FINAL.pdf

In Business-to-Business (B2B) instant messaging using Cisco Expressway, SRV records are crucial for external users to discover and connect to the correct XMPP service. The fact that B2B calling works but not instant messaging points towards a service discovery issue specific to XMPP.

SRV records for XMPP:Typically, the domain would have an SRV record like 'xmpp-client.[invalid URL removed]' pointing to the Expressway.

To resolve invalid certificate prompts in Cisco Jabber when using CA-signed certificates, you need to import the root certificate of the Certificate Authority (CA) into the 'Trusted Root Certification Authorities' store on the Windows client machine. This store holds certificates from trusted CAs, enabling the system to validate the certificate chain.

The Cisco XCP XMPP Federation Connection Manager service on the IM & Presence node depends on the Cisco XCP Router service. If the XMPP Federation Connection Manager fails to start, a likely cause is an issue with the XCP Router.

OAuth 2.0 is an open-standard authorization framework. Its primary function is to allow users to grant limited permissions to applications or third-party services to access their resources without sharing their primary credentials (username and password).

Not Primarily for Authentication:While OAuth 2.0 can indirectly be involved in authentication by indicating a user's identity, its core function is authorization.

The scenario indicates a high availability failover condition for a Cisco IM and Presence server: one node is idle, the other is running in backup mode. To restore both nodes to normal operation, initiating a controlled failover is the best approach:

Failover Action:This will gracefully switch the active role to the idle node, making it primary and restoring redundancy.

The scenario describes an issue where Message Waiting Indicators (MWIs) aren't lighting up for SIP-integrated Cisco Unity Connection users, even though calls reach voicemail. This points towards a configuration problem with MWI notifications on Cisco UCM.

A) Modify the SIP Trunk Security Profile on Cisco UCM:While SIP trunk security is important, it likely wouldn't affect MWI functionality in this case.

B) Increase the Delay Between Requests timer on Cisco Unity Connection:This setting might be used for other purposes but wouldn't directly address MWI notification issues on Cisco UCM.

C) Assign a Calling Search Space to the SIP Trunk on Cisco UCM:Calling Search Space defines call routing, not MWI notification.

Based on the information you provided and the image (though I cannot access the specific content of the image), for Cisco Jabber clients to avoid certificate trust warnings during login, two certificates need to be replaced with CA-signed certificates:

B) cup-xmpp:This certificate secures the connection between Cisco Jabber and the Cisco UCM XMPP server for instant messaging and presence functionalities.

C) cup-xmpp-s2s:This certificate secures the connection between XMPP servers for inter-cluster communication within Cisco UCM, which can also impact Jabber functionality.

Security Assertion Markup Language (SAML) is a widely used standard for single sign-on (SSO) and is a prerequisite for using a third-party identity provider (IdP) with Cisco Collaboration applications. While other options might be related to authentication protocols, SAML 2.0 is the current standard supported by Cisco for integration with third-party IdPs.