1Y0-312 Quick Quiz — 10 Questions

Question 1

A Citrix architect is designing a multi-zone Site with a Primary Zone in New York and a Satellite Zone in London. To minimize latency for the Local Host Cache (LHC) and ensure high availability, which component must be deployed within the London Satellite Zone?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Delivery Controller. To ensure that the Satellite Zone remains functional during a loss of connectivity to the Primary Zone database, at least one Delivery Controller must be present in the Satellite Zone. This allows the local Delivery Controller to maintain a local SQL Express database copy, providing LHC functionality. This architecture is vital for maintaining uptime in branch offices where WAN reliability between the data center and the satellite location is not guaranteed.

Answer

Citrix License Server

Answer

Virtual Delivery Agents (VDAs)

Answer

StoreFront Server

Question 2

Refer to the exhibit. An administrator is seeing this error in the NetScaler logs. What is the most appropriate action to resolve this connectivity issue?

Accepted Answer

Update the SSL profile on the NetScaler to include modern ciphers.. The error indicates a cipher suite mismatch between the client and the NetScaler virtual server. Older or insecure ciphers are often disabled by default on modern browsers for security reasons. The administrator should update the SSL profile on the NetScaler to include more modern, secure cipher suites that are compatible with current browser standards, ensuring robust encryption without breaking connectivity for modern clients.

Answer

Reinstall the SSL certificate on the client machine.

Answer

Disable SSL/TLS on the NetScaler virtual server.

Answer

Increase the maximum SSL session timeout value.

Question 3

An administrator is troubleshooting an issue where published applications fail to launch for external users connecting through Citrix Gateway, while internal users connecting directly via StoreFront experience no issues. Which TWO troubleshooting steps should the administrator perform to resolve this authentication and routing problem? (Choose two)

Accepted Answer

Verify the Secure Ticket Authority server addresses and load balancing settings configured on the Citrix Gateway virtual server.. External access failures involving Citrix Gateway and StoreFront typically point to misconfigured SSL certificates, ICA proxy settings, or secure ticket authority communication failures. Validating STA communication ensures that tickets generated by StoreFront are properly validated by the gateway before routing traffic to the Virtual Delivery Agent.

Answer

Check the local Windows firewall configuration on the individual Virtual Delivery Agents for blocking rules on port 80.

Answer

Modify the local group policy on the Delivery Controllers to increase the connection timeout threshold for XML requests.

Answer

Reinstall the Citrix Workspace app on all client endpoint devices experiencing the gateway connection failure.

Question 4

Refer to the exhibit. An administrator is analyzing performance metrics for a XenApp server. What is the primary bottleneck?

Accepted Answer

Disk I/O throughput.. The disk queue length is significantly high, indicating that the storage subsystem is struggling to keep up with the I/O requests generated by the 60 sessions. While CPU is also high, the disk queue is the primary indicator of a bottleneck that prevents the server from efficiently processing tasks. Addressing the storage latency will likely provide the most immediate relief, allowing the server to handle the load more effectively without stalling.

Answer

Memory availability.

Answer

CPU utilization.

Answer

Number of active user sessions.

Question 5

A VDA in a non-persistent pooled catalog fails to register with the Delivery Controller after a reboot. The event log shows 'Registration failed because the VDA could not find a Delivery Controller'. Which configuration file on the VDA should the administrator inspect to verify the list of Controllers?

Accepted Answer

The Registry key: HKLM\Software\Citrix\VirtualDesktopAgent\ListOfDDCs.. When a VDA fails to register, the first point of check is the list of Controllers defined in the registry or the local configuration file. The VDA uses the list defined in the 'ListOfDDCs' registry key located under HKLM\Software\Citrix\VirtualDesktopAgent. Verifying this key ensures that the VDA is attempting to contact the correct Delivery Controller FQDNs or IP addresses, as misconfiguration here is a leading cause of registration failures.

Answer

C:\Program Files\Citrix\BrokerAgent\BrokerAgent.exe.config

Answer

C:\ProgramData\Citrix\GroupPolicy\Policy.xml

Answer

The C:\Windows\System32\Drivers\etc\hosts file.

Question 6

Refer to the exhibit. The administrator notes that session reconnections are failing when Host-01 is near capacity. What is the most likely cause, and how should it be addressed?

Accepted Answer

Decrease the 'Max_Sessions_Per_Host' to ensure overhead capacity.. The error indicates that the host has reached physical resource limits, making it unable to handle even the small overhead of reconnecting a session. Simply increasing the session limit will not resolve this, as the bottleneck is hardware saturation. The administrator must lower the maximum session count per host to provide a 'buffer' for reconnections, ensuring that resources remain available to process session resumption requests without crashing the node.

Answer

Increase the 'Max_Sessions_Per_Host' to 150 to accommodate more users.

Answer

Enable 'Load Balancing' at the hypervisor level.

Answer

Disable the 'Session Reliability' feature.

Question 7

A Citrix architect is designing a multi-zone Site with a Primary Zone in New York and a Satellite Zone in London. To minimize latency for the Local Host Cache (LHC) and ensure high availability, which component must be deployed within the London Satellite Zone?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Enable Local Host Cache on the Delivery Controllers located within the Satellite Zone.. To ensure local session resiliency in a Satellite Zone, the architect must implement a Local Host Cache (LHC) configuration. When the connection to the Site database is interrupted, the Delivery Controllers in the Satellite Zone utilize the local SQL Express database to broker connections. This architecture minimizes downtime for users during WAN outages by allowing local resource enumeration and launch capabilities, effectively decoupling the Satellite Zone's brokering services from the Primary Zone's centralized database.

Answer

Increase the SQL synchronization interval between the Primary and Satellite Zones to 60 minutes.

Answer

Deploy a dedicated SQL database in the London zone and configure multi-site database mirroring.

Answer

Configure the Delivery Controllers in the Primary Zone to act as secondary brokers for the London zone.

Question 8

An administrator is configuring Machine Creation Services (MCS) with non-persistent desktops. To ensure that user profile data is persisted across reboots, which component should be implemented?

Accepted Answer

Citrix Profile Management.. In a non-persistent MCS environment, the system disk is discarded on reboot, causing loss of local changes. To retain user data, the administrator must implement a solution like Citrix Profile Management or a User Personalization Layer. These solutions redirect profile data to a centralized file share or a dedicated persistent virtual disk, ensuring that user settings, documents, and application configurations persist even when the underlying desktop instance is refreshed and recreated.

Answer

Additional snapshots on the master image.

Answer

Increasing the size of the Master Image hard drive.

Answer

Configuring a larger write-cache disk for the catalog.

Question 9

An administrator notices that after a PVS image update, several target devices are failing to boot, hanging at the 'Citrix Provisioning' splash screen. What is the most likely cause?

Accepted Answer

The target device cannot reach the Provisioning Server over the network.. Hanging at the splash screen typically indicates a network connectivity issue between the target device and the PVS server, or an incorrect boot file configuration. This is critical as it indicates that the target cannot successfully stream the vDisk data. Verification of DHCP options, PXE boot settings, and PVS server status is required to restore the target devices to an operational state.

Answer

The vDisk is set to Private mode.

Answer

The target device requires a newer version of the PVS target device software.

Answer

The vDisk is missing the latest Windows updates.

Question 10

Refer to the exhibit. An administrator notices that Device01 frequently reports disk latency warnings. Given the write cache configuration shown, what is the most likely cause?

Accepted Answer

The RAM cache size is too small, causing excessive disk overflow.. The 'Cache-in-RAM-with-overflow-to-hard-disk' configuration is highly sensitive to memory constraints. When the RAM allocation is exhausted, the PVS driver spills writes to the local hard disk. If the local disk is a slow traditional mechanical drive, it cannot handle the I/O pressure, resulting in high latency. The administrator should either increase the RAM cache size or move the overflow cache to faster storage, such as an SSD.

Answer

The PVS Store path is on a slow network share.

Answer

The vDisk is in Standard mode instead of Private mode.

Answer

The PVS server lacks sufficient CPU cores to process requests.