Free 1Y0-A08 Practice Exam Questions

1Y0-A08 Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008

#Monitoring, Managing and Maintaining the Environment

  1. Scenario: An administrator needs to monitor the Citrix IMA Service on the servers in the server farm. The administrator needs to be alerted if the IMA Service stops and the IMA service must be restarted automatically. Which of the following tools will accomplish these requirements?
    1. Event Viewer
    2. Health Monitoring and Recovery
    3. Access Management Console
    4. Citrix Edgesight for XenApp
    5. Resource Manager

Answer: b.

Explanation: Health Monitoring and Recovery can be configured to monitor the health of many XenApp components, report failures and take actions to correct the issues. Using Health Monitoring and Recovery, an administrator can monitor the Citrix IMA Service, be alerted to IMA Service failures and configure an automatic restart of the service when it fails.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Page 61

  1. Which Windows tool can an administrator use to view application, security, setup, system and forwarded logs?
    1. Event Viewer
    2. Health Monitoring and Recovery
    3. Access Management Console
    4. System Monitor

Answer: a.

Explanation: Event Viewer is a Windows MMC snap-in tool that allows administrators to view application, security, setup, system and forwarded event logs on local and remote computers.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Page 61

  1. An administrator can use the _?_ to monitor sessions and create a variety of reports.
    1. Event Viewer
    2. Health Monitoring and Recovery
    3. Access Management Console
    4. Citrix Edgesight for XenApp
    5. Resource Manager

Answer: c.

Explanation: The Access Management Console is a standalone MMC snap-in used to monitor sessions and create a variety of reports. In addition, an administrator can use the Access Management Console to view hotfix information and configure Health Monitoring and Recovery.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Page 62

  1. Scenario: Session printers in the XenApp environment have been hanging and generating errors periodically. An administrator is asked to setup a Health Monitoring and Recovery test for the printer service. Which of the following tests should the administrator set up?
    1. Checkdns.exe
    2. Checklhc.exe
    3. Checkxmlthreads.exe
    4. Cpsvctest.exe
    5. Spoolertest.exe
    6. Icalistener.exe

Answer: e.

Explanation: Citrix Print Manager Service Test (cpsvctest.exe) determines the health of the Citrix Print Manager Service by enumerating session printers. In cases where the test cannot enumerate session printers, such as service hangs or crashes, the test fails.

Source: Citrix Knowledge Center, Article CTX123197

  1. How can an administrator perform an integrity and consistency test on a XenApp Server’s Local Host Cache?
    1. Setup checklhc.exe in Event Viewer
    2. Run checklhc.exe on the server hosting the data store
    3. Run the command: dsmaint verifylhc
    4. Setup checklhc.exe in Health Monitoring and Recovery

Answer: d.

Explanation: Check Local Host Cache (checklhc.exe) performs an integrity and consistency test on the local XenApp Server’s Local Host Cache (LHC). The integrity check ensures that the data stored in the LHC is not corrupted while the consistency check ensures no duplicate LHC entries.

Source: Citrix Knowledge Center, Article CTX123197

  1. Which of the following tasks will allow the testing of a whether or not a XenApp Server can accept ICA connections and alert the administrators if the ICA port fails?
    1. Setup icalisterner.exe in Health Monitoring and Recovery
    2. Run icalistener.exe on the XenApp Server in question
    3. Run icalistener.exe on the dedicated data collector
    4. Run the command: icaport /query

Answer: a.

Explanation: ICA Listener (icalistener.exe) detects if the XenApp Server is able to accept ICA connections. The test detects the default ICA port, connects to the port, and sends it some data. If the test gets the appropriate data back, the test succeeds. Health Monitoring and Recovery can be configured to send alerts if the test fails.

Source: Citrix Knowledge Center, Article CTX123197

  1. To configure single sign-on for Web Interface using icaclient.adm, select _?_ and _?_ the pass-through authentication.
    1. Locally stored credentials; enable
    2. Local username and password; enable
    3. Locally stored credentials; disable
    4. Local username and password; disable

Answer: b.

Explanation: Single sign-on can be enforced using the icaclient.adm template by enabling pass-through authentication in the ‘Local username and password’ setting.

Source: Citrix Knowledge Center, Article CTX113004

  1. Which of the following settings can be configured in the ‘Client display settings’ of the icaclient.adm template? (Choose 4)
    1. Color depth
    2. Window width and height
    3. Seamless windows
    4. Window percentage
    5. Full screen

Answer: b.c.d.e.

Explanation: In the ‘Client display settings’ of the icaclient.adm template, an administrator can configure window width and height, seamless windows, window percentage and full screen for users in a XenApp environment.

Source: ICACLIENT.ADM

  1. Scenario: As part of their daily tasks, users of the XenApp environment are required to copy and paste objects between two different published applications. An administrator decides to enable seamless windows using the icaclient.adm template to allow them this ability. Which policy in the icaclient.adm template must the administrator choose to configure seamless windows?
    1. Client graphic settings
    2. Remote applications
    3. Client display settings
    4. Client image capture

Answer: c.

Explanation: To enable seamless windows using the icaclient.adm template, go to Administrative Templates > Citrix Components > Presentation Server Client > User Experience and select ‘Client display settings’ in the right pane. Choose Enable and set ‘Seamless windows’ to True.

Source: Citrix Knowledge Center, Article CTX112711

  1. Using which of the following can an administrator view administrative changes made to a XenApp Server farm?
    1. Event Log
    2. Health Monitoring and Recovery
    3. Configuration Logging using XenApp Advanced Configuration
    4. Configuration Logging using the Access Management Console

Answer: d.

Explanation: Configuration Logging is a feature that tracks administrative changes made to the server farm and logs them to a database from which reports can be generated in the Access Management Console.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Page 729

  1. Using Configuration Logging, an administrator can view reports in _?_.
    1. Access Management Console
    2. Event Viewer
    3. XenApp Advanced Configuration
    4. Health Monitoring and Recovery

Answer: a.

Explanation: Configuration Logging is a feature that tracks administrative changes made to the server farm and logs them to a database from which reports can be generated in the Access Management Console.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Page 729

  1. Scenario: A company has contracted a consulting firm to administer the Citrix XenApp Server farm in the environment. The IT director has determined that all changes to the XenApp farm should be tracked using Configuration Logging and credentials must be entered by an administrator before the log can be cleared. Also, if the Configuration Logging database is disconnected, no changes to the farm should be allowed. Which of the following tasks should the administrator in charge of this project take? (Choose 3)
    1. Enable Configuration Logging in the Access Management Console
    2. Enable Configuration Logging in XenApp Advanced Configuration
    3. Select ‘Allow changes to the farm when database is disconnected’
    4. Select ‘Require administrators to enter database credentials before clearing the log’
    5. Deselect ‘Allow changes to the farm when database is disconnected’
    6. Deselect ‘Require administrators to enter database credentials before clearing the log’

Answer: a.d.e.

Source: Citrix Knowledge Center, eDocs Product Documentation

#Scaling the Environment to Meet Business Requirements

  1. XenApp allows the redirection of the _?_ and _?_ folders in a virtualized session to their client system. (Choose 2)
    1. Windows
    2. Documents
    3. Desktop
    4. Users

Answer: b.c.

Explanation: So that users aren’t directed to folders on the server that is hosting the session, XenApp allows the redirection of the Documents and Desktop folders in a virtualized session to their client system.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Pages 322, 463

  1. Scenario: An administrator has been tasked with setting up XenApp so that when users connecting through Web Interface place files in their Document or Desktop folders, the files are saved locally and not on the server. The users should not be able to disable this feature. Which of the following steps should the administrator take to accomplish this? (Choose 3)
    1. Leave the default ‘Provide Folder Redirection to all users’ setting in the XenApp Web site
    2. Leave the default ‘Provide Folder Redirection to all users’ setting in the XenApp Services site
    3. Deselect ‘Allow users to customize Special Folder Redirection’ in the XenApp Web site
    4. Deselect ‘Allow users to customize Special Folder Redirection’ in the XenApp Services site
    5. Set up a Group Policy Object in Active Directory to redirect the folders
    6. Create a logon script to map the Document and Desktop folders to the local client
    7. Click ‘Manage session preferences’
    8. Click ‘CONFIG.XML’ and click ‘Change session options’

Answer: a.c.g.

Explanation: When setting up Special Folder Redirection for users connecting through Web Interface, use the XenApp Web site. Click ‘Manage session preferences’. ‘Provide Folder Redirection to all users’ is enabled by default. So that users cannot make changes to this feature, make sure ‘Allow users to customize Special Folder Redirection’ is deselected. XenApp 5 added this feature so that it no longer has to be configured using a GPO in Active Directory.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Pages 322, 463

  1. Scenario: An administrator has been tasked with setting up XenApp so that when users connecting through the Citrix XenApp plugin place files in their Document or Desktop folders, the files are saved locally and not on the server. It has been decided that the users should be able to enable and disable this feature at their own discretion. Which of the following steps should the administrator take to accomplish this? (Choose 2)
    1. Leave the default ‘Provide Folder Redirection to all users’ setting in the XenApp Web site
    2. Leave the default ‘Provide Folder Redirection to all users’ setting in the XenApp Services site
    3. Select ‘Allow users to customize Special Folder Redirection’ in the XenApp Web site
    4. Select ‘Allow users to customize Special Folder Redirection’ in the XenApp Services site
    5. Set up a Group Policy Object in Active Directory to redirect the folders
    6. Create a logon script to map the Document and Desktop folders to the local client
    7. Click ‘Manage session preferences’
    8. Click ‘CONFIG.XML’ and click ‘Change session options’

Answer: b.d.h.

Explanation: When setting up Special Folder Redirection for users connecting through the Citrix XenApp plugin, use the XenApp Services site. Click ‘CONFIG.XML’ and click ‘Change session options’. ‘Provide Folder Redirection to all users’ is enabled by default. So that users can enable and disable this feature at will, make sure ‘Allow users to customize Special Folder Redirection’ is selected. XenApp 5 added this feature so that it no longer has to be configured using a GPO in Active Directory.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Pages 322, 323, 463

  1. Which of the following applications would not benefit from virtual memory optimization? (Choose 3)
    1. Applications that connect to a remote backend Microsoft SQL database
    2. Applications that have digitally signed components
    3. Applications whose DLLs are protected by Windows Rights Management
    4. Applications whose executable programmatically checks the DLL after it has been loaded

Answer: b.c.d.

Explanation: Most applications can be rebased through virtual memory optimization. There are some that can’t use this feature. Applications that would not benefit from virtual memory optimization are apps that have digitally signed components, apps whose DLLs are protected by Windows Rights Management (WRM) and apps whose executable programmatically checks the DLL after it has been loaded.

Source: Citrix Knowledge Center, Article CTX106023

  1. Scenario: Application files are stored remotely for an application that resides on a XenApp Server and requires virtual memory optimization. What must the administrator do to configure the application for memory optimization?
    1. Applications with remote application files cannot benefit from virtual memory optimization
    2. In the ‘Memory optimization user’ area of configuration, supply a domain administrator username and password
    3. In the ‘Memory optimization user’ area of configuration, check ‘Use local system account’
    4. Grant the Citrix Administrator account permissions to the remote server where the application files reside

Answer: b.

Explanation: When an application that requires virtual memory optimization has application files located on a remote server, the administrator must supply a domain administrator’s username and password that has rights to the remote server in the ‘Memory optimization user’ area during configuration.

Source: Citrix Knowledge Center, eDocs Product Documentation

  1. Scenario: Two CPU-intensive applications are running on a single-CPU XenApp Server in the farm. Some users are running both applications in a session while a few users are running only one of the applications in a session. Several users running applications on that server start voicing their concerns about poor application performance. What can the administrator do to resolve the issue of poor application performance?
    1. Configure Preferential Load Balancing
    2. Configure ICA session limits in the server farm
    3. In the server properties, configure ‘Fair sharing of CPU between sessions’
    4. Start the CPU Utilization Management/CPU Rebalancer Service on the server

Answer: c.

Explanation: To resolve poor application performance on a single-CPU XenApp Server which is hosting CPU-intensive applications, using the Access Management Console, configure ‘Fair sharing of CPU between sessions’ for a server in CPU Utilization Management. The CPU Utilization Management/CPU Rebalancer Service only starts on servers with multiple processors. ICA session limits would be configured to manage the number of ICA sessions allowed per user.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Pages 144 – 151

  1. What service is only available on servers with multiple processors?
    1. IMA Service
    2. Citrix CPU Utilization Management/User-Session Synchronization
    3. Citrix CPU Utilization Management/Resource Mgmt
    4. Citrix CPU Utilization Management/CPU Rebalancer

Answer: d.

Explanation: The Citrix CPU Utilization Management/CPU Rebalancer Service is only available on servers with multiple processors.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Page 146

  1. The CPU Utilization Management/CPU Rebalancer Service should only be run when all CPU intensive applications:
    1. appear to be running on the same CPU
    2. appear to be running on multiple processors
    3. are running in one session
    4. are running in multiple sessions

Answer: a.

Explanation: The CPU Utilization Management/CPU Rebalancer Service is responsible for enhancing resource management on servers with multiple CPUs and should only be run when all CPU intensive applications appear to be running on the same CPU.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Page 146

  1. Scenario: A new CPU-intensive application has been added to the XenApp Server farm. Soon after adding the new application, users start voicing their concern over long logon times. Which of the following should the administrator do to resolve the issue?
    1. Configure ICA session limits in the server farm
    2. In the farm properties, configure ‘Fair sharing of CPU between sessions’
    3. Assign the Advanced Load Evaluator to the application
    4. Disable the CPU Utilization Management/CPU Rebalancer Service on the server

Answer: b.

Explanation: To resolve slow logon times when a CPU-intensive application is the cause, using the Access Management Console, configure ‘Fair sharing of CPU between sessions’ for the farm in CPU Utilization Management. The CPU Utilization Management/CPU Rebalancer Service is responsible for enhancing resource management on servers with multiple CPUs and should only be run when all CPU intensive applications appear to be running on the same CPU and disabling it would not solve anything. ICA session limits would be configured to manage the number of ICA sessions allowed per user. Load evaluators would be a factor if it was a load issue, but it’s a CPU/application issue.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Pages 144 – 151

  1. Scenario: User A is running multiple CPU intensive applications on a XenApp Server. User B is running one CPU intensive application on the same server. User B is noticing application poor application performance while User A is not noticing any degradation in application performance. Which of the following should the administrator implement to solve this issue?
    1. Workspace Control
    2. Preferential Load Balancing
    3. CPU Utilization Management
    4. Keep Alive

Answer: c.

Explanation: When multiple sessions are running on a server, the performance of some sessions can be impacted when one or more sessions dominate the CPU time on the server. An administrator can configure CPU Utilization Management to monitor resources and normalize CPU peaks when the performance of the server farm becomes limited by CPU-intensive operations.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Page 144

  1. When setting up an application that is to be streamed and must interact as though it were integrated with another streamed application, what must be configured?
    1. The ability for users to update the applications
    2. Digital Signature
    3. Install IE plug-ins
    4. Inter-Isolation Communication

Answer: d.

Explanation: During the profiling process, set up inter-isolation communication for applications profiled independently that should interact as though they are integrated with other profiled applications.

Source: Citrix Knowledge Center, eDocs Product Documentation

  1. Scenario: Application A has been installed in the XenApp farm and is currently being streamed. Application B will be installed in the XenApp farm and will be streamed and must act as though it were integrated with Application A. Which of the following steps must the administrator take to make this happen?
    1. Create a new profile for Application B and configure Inter-Isolation Communication with Application A
    2. Create a new profile for Application B and re-profile Application A and configure Inter-Isolation Communication in both profiles
    3. Configure an alternate profile for Application B in the advanced options of the published application
    4. Add a pre-launch script that verifies that Application A has started streaming to the client before Application B starts

Answer: a.

Explanation: During the profiling process, set up inter-isolation communication for applications profiled independently that should interact as though they are integrated with other profiled applications.

Source: Citrix Knowledge Center, eDocs Product Documentation

  1. Scenario: After testing a streamed application, an administrator determines that some operations are required before the application runs. Which of the following tasks should the administrator perform to make these operations happen?
    1. Configure Inter-Isolation Communication in the profile properties
    2. Configure Pre-Launch and Post-Exit Scripts in the profile properties
    3. Configure Add a New Target in the profile properties
    4. Configure Applications and Files in the profile properties

Answer: b.

Explanation: After testing a profile, if you determine that certain operations are required before or after running the application, you can write scripts and add them to the profile. To specify these operations, from the Edit menu, select Profile Properties and use the Pre-launch & Post-exit Scripts page to select scripts.

Source: Citrix Knowledge Center, eDocs Product Documentation

  1. How can an administrator specify a script to run before a streamed application is launched?
    1. Use the Select Applications pane of the New Profile wizard
    2. In the navigation pane of the profile, add a new target
    3. Select the script in Profile Properties
    4. Click Add Item in Applications and Files

Answer: c.

Explanation: To specify a script to run before a streamed application is launched, from the Edit menu, select Profile Properties and use the Pre-launch & Post-exit Scripts page to select scripts.

Source: Citrix Knowledge Center, eDocs Product Documentation

  1. To allow one published application to be streamed to users on either side of a WAN without streaming the application over the WAN, which of the following should be implemented?
    1. Access Gateway
    2. File Type Associations
    3. Offline Access
    4. Alternate Profiles

Answer: d.

Explanation: For streamed applications only, use Alternate Profiles to allow one published application for users on either side of a WAN with file servers on their side. When you create an alternate profile, you create a duplicate of the primary profile that is located on a different file share, which is more accessible to the user device.

Source: Citrix Knowledge Center, eDocs Product Documentation

  1. _?_ allows one published application to be streamed  to users on either side of a WAN with a duplicate of the primary profile located in a file share in each location.
    1. Alternate Profiles
    2. Offline Access
    3. File Type Associations
    4. Access Gateway

Answer: a.

Explanation: For streamed applications only, use Alternate Profiles to allow one published application for users on either side of a WAN with file servers on their side. When you create an alternate profile, you create a duplicate of the primary profile that is located on a different file share, which is more accessible to the user device.

Source: Citrix Knowledge Center, eDocs Product Documentation

  1. Scenario: An administrator configured Microsoft Office 2007 for application streaming. The administrator created a profile for the Microsoft Office 2007 suite for Windows XP Professional SP1. Users running Windows Vista are unable to receive the streamed application. What should the administrator do to make the application suite available to the Windows Vista users?
    1. Remove Windows XP Professional SP1 from targets and add Windows Vista in the application profile properties
    2. Add a target for Windows Vista in the application profile properties
    3. Configure Inter-Isolation Communication in the application profile properties
    4. Make a change in the Windows Vista registries to allow Windows XP applications to run

Answer: b.

Explanation: A profile can support multiple targets where the target is a separate installation of the profile-level software targeted for execution on a specific version of the operating system or language. For example, create one target for Windows Vista and another target for Windows XP Professional SP1.

Source: Citrix Knowledge Center, eDocs Product Documentation

  1. A(n) _?_, which is specified in an application profile, denotes a combination of operating system, service pack level, drive letter and language to which the streamed application will be delivered.
    1. profiler
    2. offline plug-in
    3. target
    4. isolation environment

Answer: c.

Explanation: A target is denotes a combination of operating system, service pack level, system drive letter and language. Applications can be profiled for each combination of these values to support separate targets; for example: Microsoft Vista for all service packs, drive letter C, and English.

Source: Citrix Knowledge Center, eDocs Product Documentation

#Maintaining Data and Server Integrity

#Troubleshooting

  1. QFARM _?_ displays information about servers in the farm and all zones that are offline.
    1. /offline
    2. /tcp
    3. /load
    4. /zone

Answer: a.

Explanation: QFARM /offline displays information about servers offline within the farm and all zones or a specific zone. QFARM /tcp displays TCP/IP information for the server farm. QFARM /load displays load information. QFARM /zone displays all data collectors in all zones or only the data collector within a specified zone.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Page 102

  1. The following commands return a list of servers that are available: (Choose 2)
    1. QFARM
    2. QFARM /online
    3. QFARM /process
    4. QFARM /disc

Answer: a.b.

Explanation: QFARM and QFARM /online return a list of available servers. QFARM /process displays process information. QFARM /disc displays disconnected session information.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Pages 101, 102

  1. Scenario: Desiring to use a different server as the zone data collector, an administrator changed the election preference of several XenApp Servers in the farm. The administrator now wants to force a new zone data collector election in the zone. Which command can the administrator use to force the election?
    1. QFARM /election
    2. QUERYDC -e
    3. QUERYDC -z
    4. QFARM /dc

Answer: b.

Explanation: To force a new zone data collector election in a zone, an administrator can use QUERYDC -e.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Page 104

  1. Which of the following commands displays all of the zones in the farm?
  1. QUERYHR
  2. QUERYHR -h
  3. QUERYHR -z
  4. QUERYHR -n

Answer: c.

Explanation: QUERYHR -z displays all of the zones in the farm. QUERYHR displays the host record for the server. QUERYHR -h zonename displays all member servers in the zone specified by zonename. QUERYHR -n displays the farm name.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Page 106

  1. Which of the following commands is an alternate way to display information about member servers in the farm?
  1. QUERYHR
  2. QUERYDC
  3. QFARM
  4. QUERYDS

Answer: a.

Explanation: QUERYHR is an alternate way to display information about member servers in the farm. QUERYDS is an alternate way to obtain information from the data collector for the zone. QUERYDC is an alternate way to administer the data collector for the zone. QFARM provides the administrator with information about the server farm.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Pages 101 – 109

  1. Which of the following commands is an alternate way to administer the data collector for the zone?
  1. QUERYHR
  2. QUERYDC
  3. QFARM
  4. QUERYDS

Answer: b.

Explanation: QUERYDC is an alternate way to administer the data collector for the zone. QUERYHR is an alternate way to display information about member servers in the farm. QUERYDS is an alternate way to obtain information from the data collector for the zone. QFARM provides the administrator with information about the server farm.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Pages 101 – 109

  1. The _?_ command is an alternate way to obtain information from the data collector for the zone.
  1. QUERYHR
  2. QUERYDC
  3. QFARM
  4. QUERYDS

Answer: d.

Explanation: QUERYDS is an alternate way to obtain information from the data collector for the zone. QUERYHR is an alternate way to display information about member servers in the farm. QUERYDC is an alternate way to administer the data collector for the zone. QFARM provides the administrator with information about the server farm.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Pages 101 – 109

#Optimizing the Environment

  1. Which feature of XenApp allows a user to open an application on one workstation and, without closing the application, move to another workstation and connect to the application in the same session instead of opening a new session?
  1. Workspace Control
  2. Keep-Alive
  3. Session Reliability
  4. Auto Client Reconnect

Answer: a.

Explanation: Workspace Control allows users to connect to applications being delivered to the user on a different client device using the same session. Keep-Alive tracks the amount of time since the last time a server had contact with a plugin, sends a packet to the plugin and disconnects the session if the plugin doesn’t respond within a certain time limit or number of tries. Session Reliability keeps the session displayed on the user’s screen during connection interruption and displays a spinning hour glass until connectivity is resumed. Auto Client Reconnect detects a broken connection and attempts to reconnect the user to the disconnected session until there is a successful reconnection or the user cancels the reconnection attempts.

Source: CXA-300-1I Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008, Pages 524, 527, 529, 554

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