Getting 2V0-51.23 Certification Made Easy!

In a load balanced Horizon POD with three Connection Servers, there are 450 active Blast sessions connected. If one of these Connection Servers runs into an unplanned outage, only the active sessions from the failed Connection Server are disconnected, because HTTPS Secure Tunnel is disabled. This means that the other two Connection Servers can still handle the remaining sessions without interruption.

The HTTPS Secure Tunnel is a feature that allows Horizon Client devices to establish secure connections to virtual desktops and applications through the Connection Server. When this feature is enabled, all the display protocol traffic is tunneled through the Connection Server, which acts as a proxy between the client and the desktop. This increases the security and simplifies the network configuration, but also adds some overhead and dependency on the Connection Server availability1.

When this feature is disabled, the Horizon Client devices connect directly to the desktops using their IP addresses or hostnames, bypassing the Connection Server. This reduces the load and dependency on the Connection Server, but also requires more network configuration and firewall rules to allow direct access to the desktops2.

The Blast Secure Gateway is a similar feature that allows Horizon Client devices to establish secure connections to virtual desktops and applications using the Blast Extreme protocol through the Connection Server. When this feature is enabled, the Blast Extreme traffic is tunneled through the Connection Server, which acts as a gateway between the client and the desktop. When this feature is disabled, the Horizon Client devices connect directly to the desktops using Blast Extreme3.

In this scenario, both HTTPS Secure Tunnel and Blast Secure Gateway are disabled, which means that the Horizon Client devices connect directly to the desktops using Blast Extreme. Therefore, if one of the Connection Servers fails, only the sessions that were authenticated by that Connection Server are affected. The other sessions can continue without interruption, as long as they can reach their desktops directly4.

The other options are not correct for this scenario:

• All 450 active sessions are disconnected, and have to re-connect again by the end-user. This would be true if HTTPS Secure Tunnel or Blast Secure Gateway were enabled, and all the display protocol traffic was tunneled through the Connection Server. In that case, any failure of a Connection Server would disconnect all the sessions that were using it as a proxy5.
• All active sessions will stay connected, because HTTPS Secure Tunnel and Blast Secure Gateway are disabled. This would be true if there was no dependency on the Connection Server after authentication. However, even with HTTPS Secure Tunnel and Blast Secure Gateway disabled, there is still some communication between the Horizon Client and the Connection Server for session management and heartbeat monitoring. If a Connection Server fails, these communications are lost and the sessions are terminated.
• All 450 active session are logged off immediately. This would be true if there was a global setting in Horizon Console to log off users when a Connection Server fails. However, there is no such setting in Horizon Console. The default behavior is to disconnect users when a Connection Server fails, not log them off.

References:

• Configuring HTTPS Secure Tunnel
• Configuring Network Ports for Direct Connections
• Configuring Blast Secure Gateway
• Load Balancing Across Multiple Pods
• Horizon 7: Monitoring health of Horizon Connection Server using Load Balancer
• [Horizon 7 Pods]
• [Global Settings for Client Sessions in Horizon Console]
• [VMware Horizon Architecture Planning]

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To monitor the advanced metrics of desktop sessions in Horizon Console, you need to use the Horizon Help Desk Tool. This is a web application that you can use to get the status of Horizon 8 user sessions and to perform troubleshooting and maintenance operations1. You can also view performance details for a virtual or published desktop session that uses the PCoIP or VMware Blast display protocol2.

To access the Horizon Help Desk Tool, you need to click on the Monitoring tab on the left side of the Horizon Console. Then, you need to select Help Desk from the drop-down menu. This will open the Horizon Help Desk Tool in a new browser tab. You can then search for a user, machine, or pool and view the session details. You can also click on More to see the advanced metrics such as latency, bandwidth, protocol, and frame rate1.

To create an instant-clone desktop pool, you must first create a golden image virtual machine and take a snapshot of it in a powered-down state. This snapshot provides the base image for the clones. You cannot create an instant-clone desktop pool from a VM template or a powered-on VM. Therefore, the administrator must take a snapshot of the VM that is the golden image before creating the new desktop pool. References: Create an Instant-Clone Desktop Pool and Instant Clone Desktop Pools

To correctly sequence the TLS Certificate Configuration Steps:

• Get a new signed TLS certificate from a CA.Before making any modifications or importing the certificate, you'll first need to obtain a new signed TLS certificate from a Certificate Authority (CA). So, this should beStep 1.
• Import the TLS certificate into the Windows local computer certificate store.After obtaining the new signed TLS certificate, the next logical step is to import this certificate into the Windows local computer certificate store. This would beStep 2.
• Modify the certificates/ friendly names to vdm and reflect the current active certificate.Once the certificate is imported, the next step is to modify its friendly names to ensure the Horizon Service recognizes and uses this certificate. This becomesStep 3.
• Restart Horizon Service.Finally, after all the modifications and configurations are done, you should restart the Horizon Service to apply the changes. This isStep 4.

In summary: