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Citrix XenApp 6.5 Administration Exam: 1Y0-A20 Demo Edition
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QUESTION: 1 Scenario: A XenApp administrator must recommend a database option for the new XenApp 6.5 data store. The new farm will have more than 100 XenApp servers and 500 published resources, support more than 5,000 concurrent users and have two zones separated by a WAN connection. Which two database options should be administrator recommend? (Choose two.)
A. B. C. D.
IBM DB2 9.7 Oracle Enterprise 1.1 Microsoft SQL Server 2008 Microsoft SQL Server Express 2008
Answer: B, C Explanation: SQL Express is a free version that only supports small environments. Obviously 100 xenapp servers, 500 published applications, 5,000 concurrent users is a large environment.
QUESTION: 2 Scenario: The administrator of a small XenApp server farm has configured end-to-end encryption between the XenApp servers and user devices by setting up Access Gateway VPX. Session Reliability is enabled in the farm with default settings. Over which port will published applications be delivered?
A. B. C. D.
80 443 1494 2598
Answer: B Explanation: I think the answer should be 443 because of the CAG vpx is set up and then all traffic is ported to 443. Also the 2598 traffic is directed to 443. http://support.citrix.com/servlet/KbServlet/download/2389-102654859/CitrixPorts_by_Port_1103.pdf Next article is for CAG8 but the trafficflow is still the same. http://support.citrix.com/article/CTX113250
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QUESTION: 3 Scenario: The administrator of a XenApp Enterprise Edition server farm is configuration Single Sign-on for the users of the farm. The Citrix license server was installed with the default vendor daemon and console Web port numbers, but NOT the default license server port number. Of the port numbers that are in use in the XenApp server farm, which one should the administrator specify for the license server during Single Sign-on configuration?
A. B. C. D.
443 7279 8082 27009
Answer: D Explanation: v4 - updated This is a trick question. By default the daemon and console use ports 7279, and 8082, so answers B and C are incorrect, because you can't have 2 things using the same port By default the license server uses 27000, and as you can see below, by default SSO uses 27000, but the question says 27000 was NOT used. Since 443 requires certificates and the question doesn't mention that, the only possible port left is 27009
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License server port number is 27000 Vendor daemon port number is 7279 Console Web port is 8082
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http://support.citrix.com/article/CTX125774 http://support.citrix.com/proddocs/topic/licensing-119/lic-install.html
QUESTION: 4 In building out a new XenApp environment, an administrator places the Secure Gateway and Web Interface in the DMZ. What must the administrator do to secure the traffic to the XML Broker?
A. B. C. D.
Change the XML traffic port to a non-standard assignment. Use the SSL Relay tool to encrypt traffic to the XML Broker in the farm. Place the XML Broker in the DMZ and encrypt the traffic between them. Use encrypted ICA to communicate between the XML Broker and the Web Interface.
Answer: B
QUESTION: 5 An administrator needs to install a XenApp 6.5 server to act as an additional dedicated data collector. After installing XenApp on the new server, the next step is to configure it by enabling the __________.
A. B. C. D.
Session-host mode only Controller and Session-host modes data collector and XML Broker host mode data collector and XTE Service host mode
Answer: B Explanation: Only during setup you can set the setup type: select session-host only (doesnt act as a data collector) or controller and session-host. Option C&D are invalid.
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QUESTION: 6 Scenario: An administrator manages a XenApp farm that uses Citrix Provisioning Services to automate the addition of XenApp servers to the farm. The administrator must implement a solution to automate the addition of new servers to the published resources, load evaluators, Citrix polices and load balancing policies. Which two should the administrator configure to meet the requirements of the scenario? (Choose two.)
A. B. C. D.
Zones Policies Worker group Load evaluators
Answer: B, C Explanation: A worker group is a list of xenapp servers. Rather than manually adding new servers to a published application, for example, you could simply use a worker group and when you
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add a new xenapp server to a worker group, it's automatically added to any published applications that use that group.
QUESTION: 7 Which Citrix service should an administrator monitor when troubleshooting issues with Session Reliability?
A. B. C. D.
IMA XML XTE MFCom
Answer: C Explanation: Session Reliability is performed by the XTE service http://support.citrix.com/article/CTX104147
QUESTION: 8 Scenario: An administrator has finished installing the first server in a new farm and is now creating the data store. The farm will consist of five servers and needs to support about 50 users. The company wants this installation to be as cost-effective as possible. What is the best option for a database system that would support this farm effectively?
A. B. C. D.
Microsoft Access Microsoft SQL Server Oracle Database System Microsoft SQL Server Express
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Answer: D Explanation: 50 users is a small environment, therefore SQL Express would be the best choice. Notice the question asks "most cost-effective" - SQL Express is FREE http://support.citrix.com/proddocs/topic/xenapp65-planning/ps-planning-datastore-introv2.html
Microsoft SQL Server and Oracle are suitable for any size environment and are recommended for all large and enterprise environments. When deploying large farms across a WAN, you can obtain a performance advantage by replicating the data store and distributing the load over multiple database servers. SQL Server and Oracle are suitable for large farms and support replication. Do not install XenApp on the SQL Server or Oracle database server. SQL Server Express is suitable for all small and many medium environments located in one physical location, which do not have branch offices across a WAN.
QUESTION: 9 In order for an administrator to download a license from the company's mycitrix.com portal, the administrator must be added _________.
A. B. C. D.
as a Citrix Administrator in the AppCenter into the contacts for the company in mycitrix.com to the Purchasing Active Directory group in the company as a Domain Administrator in the company's Active Directory
Answer: B Explanation: http://support.citrix.com/article/CTX130126 You must be logged on to MyCitrix with a user name and password associated to an Administrator of the account where you need to make the restricted toolboxes available to other contacts. When allowing contacts to access unrestricted toolboxes, all contacts within the account are able to view or use the toolboxes. The system does not allow an administrator to select only certain contacts to view these toolboxes. The access is available to all or to none. If you need to allow only
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certain contacts access and do not want to provide all contacts access, Citrix recommends that you add such contacts to the Administrators group.
QUESTION: 10 Scenario: A farm contains six servers with one shared data collector that has a custom load balancing policy to limit the number of connections. An administrator needs to add more users to the farm, which will result in adding on four more servers for a total of 10. As most users in the farm use a CAD application, the administrator understands that resource needs will increase. Which step should the administrator take to maintain farm integrity?
A. Dedicate two new servers as data collectors and set them as Most Preferred in the election. B. Dedicated one new server as the dedicated data collector and the current data collector as its backup. C. Dedicate three new servers as shared data collectors and assign Most Preferred in the election panel. D. Dedicate a new server as a second shared data collector and assign Most Preferred in the election panel.
Answer: B Explanation: The resources a data collector uses increase based on users and servers. Since more users and servers are being added to the farm, a dedicated server should be used just as a data collector.http://support.citrix.com/proddocs/topic/xenapp65-planning/ps-planning-datacollectors-planning-v2.html When planning for data collectors, consider: If you need a dedicated data collector If you do not need a dedicated data collector, which infrastructure services can share the same server If you need a zone in each geographic region, which means that you need data collectors for those regions as well To maintain consistent information between zones, data collectors relay information to all other data collectors in a farm, creating network traffic. In general, data collector memory consumption increases as farm size increases. However, it is not significant. For example, the Independent Management Architecture service running on the data collector typically uses 300 MB on a 1000 server farm. Likewise, CPU usage is not significant. A data collector hosted on a dual-processor server can support over 1000 servers in its zone. In general, CPU usage increases as the number of servers in a zone increases, the number of zones increases, and the number of users launching applications increases. On most networks, Citrix recommends reducing
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the number of data collectors and zones. For example, if you have a farm with 100 servers in one location, Citrix recommends having one zone with a dedicated data collector (although you can have backup data collectors). Citrix recommends installing XenApp on the server you want to host the data collector functionality and, after installing other member servers, configuring a server as the backup data collector.
QUESTION: 11 Scenario: An administrator is creating a new XenApp farm. The farm will use hosted applications and applications streamed using Microsoft App-V technology. Both Microsoft Windows and Apple OS X computers are in use in the environment. Management requires an automated process to deliver all necessary clients and plug-ins. Which two components should the administrator use to automate the process of delivering and updating client plug-in? (Choose two.)
A. B. C. D.
Microsoft Group Policy Citrix Receiver Updater Citrix Merchandising Server Apple Enterprise Management Software
Answer: B, C Explanation: Group policy cannot be used for Apple computers, so option A is invalid Citrix Receiver for Windows, Receiver for Mac, and Merchandising Server are components of the Citrix Delivery Center solution. While Citrix Delivery Center provides the application delivery infrastructure to the IT administrator, Citrix Merchandising Server and Citrix Receiver for Windows work together to streamline the installation and management of application delivery to the user desktops. Merchandising Server provides the administrative interface for configuring, delivering, and upgrading plug-ins for your users' computers.
QUESTION: 12 Scenario: A Citrix administrator manages a XenApp farm with 3,000 users. The users run the same set of applications every day. Users complain that Application B takes a long time to launch after they exit Application A. The administrator is required to implement a solution to speed up application launch. What should the administrator do in order to ensure that users are able to launch Application B quickly after they exit Application A?
A. Configure Session Linger B. Set Linger Disconnect Time Interval to 0
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C. Set Pre-launch Terminate Time Interval to 0 D. Create a Pre-launch session for Application B
Answer: A Explanation: This question is verifying you know the difference between session linger and pre-launch pre-launch loads the ICA session when the user logs into the Citrix Receiver, not when they launch an application. However, when the application is closed the session is closed as well. If the application is reopened there is a delay, which is what this question says is happening. Session linger keeps the session open when an application is closed. If the application is reopened, or if another application is opened, it is much quicker. A good demonstration of the differences is at http://vimeo.com/33426922
QUESTION: 13 Scenario: Users working from a remote branch office using XenApp are reporting that Flash content is NOT displayed on an internal web page. Branch office users have NO direct connection to the internet. Other Intranet sites are unaffected. Which two steps could the administrator take to resolve the issue without impacting Flash performance? (Choose two.)
A. Upgrading the Receiver client on the users PC to version 13. B. Create a XenApp policy to enable Flash redirection for remote users. C. Downgrade the version of Internet Explorer on the XenApp server to version 7. D. Enable server-server content fetching policy on the client device using the supplied ADM file. E. Add the URL of the intranet site to a Flash server-side content fetching URL list policy setting. F. Uninstall the Flash player on the XenApp server, and install the 10.1 Flash player or later on the client.
Answer: D, E Explanation: The second generation of Flash Redirection can be configured to be backward compatible with its legacy features, supporting user devices with earlier versions of the online plugin (now the Citrix Receiver). Those devices can access the legacy Flash Redirection features only. This is done by providing two separate virtual channels, one for each generation of Flash Redirection, on the servers and user devices To use the backward compatibility feature: On the server running Desktop Studio or AppCenter, enable the
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Citrix User Policy setting Flash backwards compatibility. On the user device, enable the Enable HDX MediaStream for Flash on the user device setting, selecting the Always or Ask options. To identify Web sites for server-side content fetching: Flash Redirection downloads Flash content to the user device where it is played. The Flash server-side content fetching URL list setting allows you to specify Web sites whose Flash content can be downloaded to the server then sent to the user device. While server-side content fetching works with most Internet sites, it is intended for use with Intranet sites and internal Flash applications. http://support.citrix.com/proddocs/topic/xendesktop-als/hdflash-configure-server-ad.html
QUESTION: 14 Scenario: An administrator needs to prepare a group of XenApp 6.5 servers for a scheduled maintenance window. The servers need to accept connections from users that already have existing sessions but disallow any new connections. The administrator also needs to ensure that the servers remain in maintenance mode after the software updates are performed, which require multiple restarts. Which setting can the administrator use from the AppCenter?
A. B. C. D. E.
Prohibit logons only Drain until next restart Allow logons and reconnections Prohibit logons until server restart Prohibit logons and reconnections
Answer: A Explanation: v4 changed answer to A Citrix recommends that you drain the server slowly by denying new logons (rerouting them to other servers), but allowing users to reconnect to disconnected sessions and close applications cleanly, thus preventing loss of user data. http://support.citrix.com/proddocs/topic/xenapp65-admin/ps-sf-logons-control-v2.html
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QUESTION: 15 Users of a medical application are complaining of poor quality images when viewing Xray scans. The administrator should create a XenApp policy to _________.
A. B. C. D.
enable image caching set the Lossy Compression Level to None set the Progressive Compression level to low set the Heavyweight Compression level to Disabled
Answer: B Explanation: http://support.citrix.com/proddocs/topic/xenapp5fp-w2k8/ps-console-policies-rulesspeedscreen.html Compression Level This setting controls the normal lossy compression level used over client connections that are limited in bandwidth. In such cases, displaying images without compression can be slow. The Compression level setting defines the degree of lossy compression used on images. For improved responsiveness with bandwidth- intensive images, use high compression. Where preserving image data is vital; for example, when displaying X-ray images where no loss of quality is acceptable, you may not want to use lossy compression.
QUESTION: 16 Scenario: A user opens a session to Server A to use a word processing application at 18:00. After 45 minutes of working with the word processing application, the user then launches an email client application, which opens a new session on Server B. Upon review of the environment, the administrator confirms that both applications are
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published with the same parameters for audio, screen size, color resolution and encryption. Which three possible reasons could have prevented Session Sharing from occurring? (Choose three.)
A. The email client application is NOT installed on Server A. B. The email client application is only published from Server B. C. The number of instance of the email client application that can be run is limited. D. Server A is reporting a full load, preventing the email client application from launching. E. Server A and Server B are in different vLAN; the vLAN of Server B has more capacity than the vLAN of Server A.
Answer: A, B, D Explanation: This question tests your knowledge of Session Sharing http://support.citrix.com/article/CTX159159 vLans are virtual LANs; each vLAN can be thought of as a seperate domain. If each server was in a different vLan they would be in different XenApp Farms so answer E is incorrect. happens BEFORE load balencing so answer D is incorrect
QUESTION: 17 XenApp users need to be able to move between client devices and reconnect to both active and disconnected sessions. What action must an administrator take to enable this behavior?
A. Install Web Interface and XenApp with the default settings. B. Disable Workspace Control on each Web Interface server. C. Configure a XenApp policy to enable the Smooth Roaming feature. D. Ensure that the Web Interface server is in the same domain or forest as the XenApp farm. Answer: A Explanation: Workstation control (smooth roaming) are enabled by default on the XenApp Website and Services Site.
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I could not find a policy for Smooth Roaming. http://support.citrix.com/proddocs/topic/online-plugin-121-windows/ica-workspacecontrol-settings-v2.html
QUESTION: 18 An application is published to users using the 'Streamed to client' delivery type. Which two plug-in are required and where are they required for this application? (Choose two.)
A. B. C. D.
Online plug-in on the client Offline plug-in on the client Offline plug-in on the XenApp server Online plug-in on the XenApp server
Answer: A, B Explanation: http://support.citrix.com/proddocs/topic/xenapp65-publishing/ps-stream-plugindecide.html Streamed to client desktops. With this method, you make available the full set of application streaming features. You can publish applications as "streamed to client" or any other method for streaming. When you stream applications directly to client desktops, some of the application files are cached locally and the application runs using the resources of the user device. Install both the CitrixReceiverEnterprise.exe and CitrixOfflinePlugin.exe on user devices.
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QUESTION: 19 Scenario: A company has 10 XenApp servers. The administrator has changed the recovery action of the MS Print Spooler Test of Health Monitoring and Recovery to prohibit logons and connections to the server. Users report printing problems when connecting to three of the XenApp servers. Using Health Monitoring and Recovery to allow additional XenApp servers to be excluded from load balancing, the administrator should change the __________.
A. B. C. D.
minimum percent of online servers default value of 5 percent maximum percent of offline servers default value of 5 percent minimum percent of online servers default value of 10 percent maximum percent of offline servers default value of 10 percent
Answer: D Explanation: http://support.citrix.com/proddocs/topic/xenapp6-w2k8-admin/ps-maintain-monitorserver-perf.html Maximum percent of offline servers (10 percent by default). Use this setting to specify the number of servers that the Health Monitoring and Recovery feature can exclude from load balancing.
QUESTION: 20 Scenario: A server farm has three policies using the Client IP address and User filters. - Policy A (priority 1) prevents client IP address in the 208.29.80.* range from accessing network and optical drivers. All other settings are disabled. - Policy B (priority 2) prevents client IP address in the 208.29.85.* range from accessing network, client and removable drives. No other settings are configured. - Policy C (priority 3) allows all domain users to access network, client, optical and removable drives. All other settings are disabled. Which drives will be available to a domain user accessing the server farm from a client using the 208.29.85.152 IP address?
A. B. C. D. E.
No drives Optical drives Client and removable drives Network, client and removable drives Network, client, optical and removable drives
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Answer: B Explanation: Policy B restricts client and removable drives, so that only leaves optical drives
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