500-444 Exam Dumps : Cisco Contact Center Enterprise Implementation and Troubleshooting

External voice DNs are sourced from CUCM in a CCE Dial Plan. External voice DNs are the DNs that are not associated with any CCE device, such as agent phones, VRU peripherals, or gateways. They are used to route calls to destinations outside the CCE network, such as PSTN numbers, voicemail, or other PBXs. CUCM is responsible for provisioning and managing these DNs and assigning them to the appropriate devices or trunks. CVP can also use external voice DNs to send calls to CUCM for further routing or treatment.

References:

• Troubleshooting Cisco Contact Center Enterprise (CCET) course, Module 3: Troubleshooting Call Flow Issues, Lesson 3.1: Troubleshooting CCE Call Flows, Topic: CCE Dial Plan1
• Configuration Guide for Cisco Unified Customer Voice Portal, Release 12.6 (1) - System Configuration [Cisco Unified Customer Voice Portal] - Cisco, Chapter: Dialed Number Pattern Configuration2

According to the Cisco documentation12, single sign-on (SSO) in PCCE can be implemented in one of these three modes:

• SSO - Enable all agents and supervisors in the deployment for SSO. This mode requires the use of SAML assertions to exchange authentication and authorization details between an identity provider (IdP) and an identity service (IdS)1.
• SAML - Security Assertion Markup Language (SAML) is an XML-based standard that allows the IdP to issue SAML assertions, which are packages of security information transferred from the IdP to the service provider for user authentication1. SAML is the underlying technology that enables SSO in PCCE2.
• Hybrid - Enable agents and supervisors selectively in the deployment for SSO. Hybrid mode allows you to phase in the migration of agents from a non-SSO deployment to an SSO deployment and enable SSO for local PGs. Hybrid mode is useful if you have third-party applications that don’t support SSO, and some agents and supervisors must be SSO-disabled to sign in to those applications1.

Option A is incorrect because Non-SSO is the opposite of SSO, and it means continuing to use existing Active Directory-based and local authentication, without SSO1. Option C is incorrect because ldS is a typo for IdS, which is not a mode but a component of SSO. Option D is incorrect because ldP is a typo for IdP, which is also not a mode but a component of SSO.

References:

• 1: Single Sign-On - Cisco3
• 2: Cisco Packaged Contact Center Enterprise Features Guide Release 11.6 (1) - Single Sign-On [Cisco Packaged Contact Center Enterprise] - Cisco

• SSO - Enable all agents and supervisors in the deployment for SSO.
• Hybrid - Enable agents and supervisors selectively in the deployment for SSO. ...
• Non-SSO - Continue to use existing Active Directory-based and local authentication, without SSO.

A certificate authority (CA) is a trusted entity that issues digital certificates for websites and other entities. CAs validate a website domain and, depending on the type of certificate, the ownership of the website, and then issue TLS/SSL certificates that are trusted by web browsers like Chrome, Safari and Firefox. Thus, CAs help keep the internet a safer place by verifying websites and other entities to enable more trust in online communications and transactions. Some of the roles of a CA in a trusted third-party CA certificate are:

• To provide validation of certificate requests: A CA verifies the identity and authenticity of the certificate requester before issuing a certificate. The CA may use different methods of validation, such as domain validation, organization validation, or extended validation, depending on the type and level of assurance of the certificate. The CA may also check the revocation status of the certificate or the certificate chain to ensure that the certificate is not expired or revoked.
• To issue a CA signed Identity certificates: A CA signs the certificate with its own private key, which attests to the validity and integrity of the certificate. The CA also provides the certificate with a serial number, a validity period, and other attributes. The CA signed certificate can be used by the certificate holder to prove its identity and establish secure connections with other parties.

References:

• What is a CA? Certificate Authorities Explained
• The Role of Certificate Authorities
• The 5 most frequently Asked Questions about Certificate Authority (CA)