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Citrix Virtual Apps and Desktops support several high availability solutions for on-premises deployments, including Always On Availability Groups, SQL Server database mirroring, and SQL clustering. These features ensure automatic failover and continuous operation1

Citrix Workspace app includes an Auto-Update feature that automatically checks for and installs new versions. However, Citrix documentation states:

Auto-update only functions correctly when the Workspace app is installed with administrative privileges.

Deployments through enterprise software distribution tools (such as SCCM) ensure the app is installed in the correct system context to enable auto-updates.

Methods where the user installs the Workspace app manually or through StoreFront may install it in user context, which disables auto-updates.

Therefore, to guarantee:

✔ Full feature support

✔ Automatic updates

✔ No GPO configuration

✔ No user interaction

The Workspace app should be deployed using System Center Configuration Manager (SCCM), which installs the application at the machine level.

Why the other options are incorrect:

A. Workspace for Web:Browser-only access does not support full-feature Workspace capabilities.

B. Download via StoreFront:This results in a user-context installation, which disables auto-updates.

D. Network file share installation:Again, this leads to user-context installation and prevents auto-updates.

Documentation References

Citrix Workspace App Administration Guide → Auto-Update Requirements

Enterprise Deployment Guide for Citrix Workspace App

SCCM Deployment Practices for Machine-Level Installation

The Citrix Virtual Apps and Desktops documentation specifies that the Local Host Cache feature allows connection brokering operations in a site to continue when the connection between a Delivery Controller and the site database fails1. This implies that the Delivery Controller, which is part of the FlexCast Management Architecture (FMA) services, uses the Local System account to access the Citrix Virtual Apps and Desktops SQL databases in scenarios where the primary database connection is unavailable.

 To allocate the Citrix Virtual Desktops license file from the Citrix.com account, a Citrix Administrator needs the hostname of the Citrix License Server. The hostname is case sensitive and must match the name entered in the Citrix Licensing Manager or the License Server Console

 The nsconmsg tool can be used to display the policy bound hits on a Citrix ADC appliance. This tool can show the number of times a policy was evaluated and the number of times it was hit. The nsconmsg tool can also display other statistics and information about the Citrix ADC configuration and performance1

1: Citrix ADC Command Reference

When using Machine Creation Services, the Delivery Controller must communicate with the configured hosting connection (such as VMware, Hyper-V, Citrix Hypervisor, Nutanix AHV). This communication enables provisioning, power management, and information retrieval from the hypervisor.

Citrix documentation defines the Citrix Host Service as the Delivery Controller service responsible for:

Managing hypervisor connections

Sending provisioning and power-action commands

Communicating with hosting infrastructure APIs

Initiating VM creation and updates for MCS catalogs

The Citrix Broker Service manages session brokering, not hypervisor communication.

The Citrix Environment Test Service focuses on diagnostics.

“Citrix Hypervisor Service” is not a Citrix Delivery Controller service.

Therefore, the correct service enabling Controller-to-hypervisor communication is the Citrix Host Service.

Documentation References:

Citrix Virtual Apps and Desktops → Delivery Controller Services Overview

Citrix Host Service Description within Hosting Connections

This is because having multiple Cloud Connectors can provide redundancy and high availability in case one of the connectors fails or needs maintenance. Therefore, based on my last update, option B would be the correct approach.

The “Limit Visibility” option allows a Citrix Administrator to hide a published application on Citrix Workspace app for specified users or groups within a delivery group. This option can be configured in the application properties in Citrix Studio123 or using PowerShell commands4. This option does not affect the other choices.

 The command set dns parameter -setAABit YES sets the authoritative answer (AA) bit in the DNS response header. This indicates that the Citrix ADC is the authoritative server for the domain name in the query. This can be useful when the Citrix ADC is configured as a DNS proxy server1

1: 2 - DNS Parameters

Citrix Director includes application probing and health monitoring that categorizes issues into:

Warnings

Faults

Failures

According to Citrix’s monitoring definitions:

✔ An Application Fault refers to a failure that impacts functionality or causes loss of service or data.

Specifically, a fault indicates that the application:

Has experienced a significant failure

Cannot provide expected functionality

Has recorded an event indicating a serious problem

Needs administrative attention

This differs from:

Warnings (A) — non-critical issues that might lead to problems

Application unavailable (C) — a condition caused by machine/host failure

Probe failures (D) — failures detected through scheduled application probes and classified differently

Therefore, an Application Fault directly relates to loss of functionality or data, making B correct.

Documentation References

Citrix Director Monitoring Guide → Application Health States

Citrix Application Probing Documentation → Fault vs Warning Definitions