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

• Option A is correct because if one side of the ICM Logger fails, the other side can still receive historical data from both sides of the ICM Router. However, the failed side will not be able to receive any data until it is restored1.
• Option B is correct because the Peripheral Gateways (PGs) are connected to both sides of the ICM Router through the private LAN and the visible network. If the private LAN fails, the PGs can use the visible network to communicate with the active ICM Router and determine which side is the master2.
• Option D is correct because the ICM Router uses heartbeats to monitor the status of its duplex pair. If one side does not receive a heartbeat from the other side within a specified time interval, it assumes that the other side has failed and initiates a failover process3.
• Option C is incorrect because if one side of the ICM Logger fails, the impact of call processing is not limited to the corresponding side of the ICM Router. The ICM Router can still process calls using the data from the surviving ICM Logger side1.
• Option E is incorrect because there is some impact on call processing during an ICM Logger failure. For example, some historical reports may not be available, some configuration changes may not be replicated, and some call data may be lost4.
• Option F is incorrect because during an ICM Router failover, calls in progress in Cisco Unified Customer Voice Portal (CVP) are not disconnected. The CVP uses the Survivable Remote Site Telephony (SRST) feature to maintain the calls until the failover is completed5.

References:

• 1: Troubleshooting Cisco Contact Center Enterprise (CCET), page 2-4
• 2: Troubleshooting Cisco Contact Center Enterprise (CCET), page 2-6
• 3: Troubleshooting Cisco Contact Center Enterprise (CCET), page 2-8
• 4: Troubleshooting Cisco Contact Center Enterprise (CCET), page 2-10
• 5: Troubleshooting Cisco Contact Center Enterprise (CCET), page 2-12

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)

The CLI command that manages the Java Keystore Certificate in Windows CCE servers is keytool. Keytool is a utility that is included in the Java Runtime Environment (JRE) and allows you to create, import, export, list, and delete certificates, keys, and keystores. A keystore is a repository of security certificates that can be used for SSL/TLS communication. The Java Keystore Certificate is the default keystore that is used by the Java applications running on the Windows CCE servers, such as the Web Setup tool, the Diagnostic Framework Portico, and the Unified Intelligence Center12. To use keytool, you need to open a command prompt window and navigate to the JRE bin directory, which is typically located at C:\Program Files\Java\jre\bin. Then, you can use the keytool command with various options and parameters to perform the desired operations on the Java Keystore Certificate34. References: Security Guide for Cisco Unified ICM/Contact Center Enterprise, Release 12.5 (1) and 12.5 (2)1, Implement CA Signed Certificates in a CCE 12.6 Solution2, SSL Certificate Installation - Java Based Web Servers - DigiCert3, Keytool - Oracle Help Center4.