Authentic Cisco Certification Exam 500-444 Questions Answers

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)

Cisco VOS is a Linux-based operating system that runs on Cisco Unified Communications servers. It provides a common platform for various Cisco applications, such as Finesse, CUIC, CVP, and ECE. Finesse is a web-based agent and supervisor desktop solution that integrates with Cisco Unified Contact Center Enterprise (CCE) and Customer Voice Portal (CVP). CUIC is a web-based reporting and analytics solution that provides real-time and historical data for Cisco Unified CCE and CVP. CVP is a software-based solution that provides call control, voice self-service, and outbound dialing capabilities. ECE is an email and chat solution that integrates with Cisco Unified CCE and Finesse.

References:

• Cisco VOS System Administration - Certificate Management1
• Cisco Packaged Contact Center Enterprise Installation and Upgrade Guide, Release 12.6 (2) - Prepare Customer Site Servers2
• Troubleshooting Cisco Contact Center Enterprise (CCET) Course Outline

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