Site Configuration Technical Tips


Please review the following technical tips to prepare your computers for an iBT test delivery. Actual implementation of computer/network configurations may require assistance from the technical staff at your site. All tips are applicable for Administrative stations, Caching Proxies and Testing Workstations unless specified.


1.    iBT Supported Operating Systems:

?  Windows XP with SP3 (32-bit only)*

?  Windows Vista with SP2 (32-bit and 64-bit)

?  Windows 7 with SP1 (32-bit and 64-bit)

?  Windows 8 (32-bit and 64-bit)


*Windows XP - Support will be terminated in April 2014 to coincide with Microsoft product ?End of extended support? policy.


?  The operating system should reside on and boot from the computer?s local hard disk. Virtual machines and thin clients are not supported.

?  Macintosh or iMac are not supported or approved for use with test delivery on the iBT platform.

?  Microsoft Server Operating System or Linux are not supported.


2.    Administrative Privileges: Administrative privileges are required to install and operate iBT software on each computer. Users running Windows Vista must turn off the User Account Control (accessible at Control Panel User Accounts Turn User Account Control ON or OFF). Users running Windows 7/8 must set User Account Control to NEVER NOTIFY.


3.    Prepare Internet Explorer: STN software requires Internet Explorer version 7, 8 or 9. It does not support Netscape, Firefox or Chrome. Please ensure that Internet Explorer is configured with the following settings for Internet Security:


a.    ActiveX controls and Plug-ins section:

?  Allow previously unused ActiveX controls to run without prompt => Enabled

?  Download Signed ActiveX controls => Enabled

?  Script ActiveX Controls marked safe for scripting => Enabled

?  Run ActiveX Controls and Plug-in => Enabled

b.    Scripting section:

?  Use Scripting => Enabled

c.     Miscellaneous section:

?  Display Mixed Content => Enabled

?  Only allow approved domains to use ActiveX without prompting => Disabled

d.    User initiated pop ups must be enabled on STN Administrative stations

e.    Uncheck ?enable protected mode? box on the security tab


4.    Desktop Firewalls: Disable any desktop firewalls (such as Windows XP SP2 firewall) to allow network communication between Administrative stations, Caching Proxy Server and Testing Workstations.


5.    Network Firewalls: Sites accessing the Internet via firewalls or proxy servers should ensure:

a.    TCP ports 443 & 80 are open

b. must be added as trusted domains allowing new software updates to download without filtering

Note: Do not use of fixed IP address in place of for trusted sites.

c.     Download of files with extension types EXE, JAR, JNLP, XML and DLL must be allowed


6.    Desktop Security configurations: If your computers have desktop security systems such as Centurion Guard, Deep Freeze, Drive Shield, Clean Slate, Fortress, or any similar software that controls which software can permanently reside on the PC, please consult with the technical staff at your site on how to install iBT software on these computers. These packages are designed to erase a software installation after a system reboot or at a scheduled time. DISABLE such security configurations on the cache proxy computer. Not disabling such security configurations will result in loss of candidate test responses. In addition, disable such configurations on all testing stations prior to the iBT test delivery.


7.    Same Subnet: The Administrative station, Caching Proxy Server and all Testing Workstations must reside on the same subnet of the LAN.


8.    LAN-WAN Separation: If your Local Area Network (LAN) is configured in a way that LAN connectivity is interrupted when you lose Internet connectivity, you should consider alternative devices or configurations to prevent this, by isolating the LAN device (network switch) from Wide Area Network Device (Internet router) for your testing facility or lab. Using a single network device can potentially prevent you from delivering a test when Internet connectivity is lost.  However, if LAN connectivity can be maintained, currently running tests should continue normally and sites authorized for Disconnected Mode or IAS test delivery will be able to launch and restart tests.


9.    Windows User Account/Login: In the IBT disconnected mode, as well as the new IAS mode, iBT software components are launched via desktop shortcuts.  These shortcuts are created only for the Windows user who was logged in at the time the iBT software was set up.  Therefore, it is critical to log in with the same Windows user account on test admin day that was used during setup.  If a different Windows account is used, the iBT shortcuts will not appear on the desktop.


10.  Cache Proxy Computer IP Address: Configure the Cache Proxy PC by either assigning it a fixed IP address or configuring your DHCP Server(s) such that the lease renewal process assigns it the same IP address as it had prior to renewal. DO NOT run desktop security applications such as ESET or Kaspersky in such a way that result in masking the cache proxy IP address as it will prohibit network communication between Administrative stations, Caching Proxy Server and Testing Workstations.


11.  Regional Settings/Options: iBT requires that all computers Regional Options/Settings and Keyboard Input Locale are configured for US English. The software checks for these settings before launching. Ensure that Regional Options/Settings for US English are installed and that the default keyboard locale is set to US English.


12.  Non-US English computer names: DO NOT use non-US English characters for computer names.


13.  Configure Power Options: The Cache Proxy and Workstation computers Power Schemes should be configured so that the hard disk and monitor stay ON and the systems do not go into hibernation or standby mode.


14.  Configure Desktop Screen Savers: The Cache Proxy and Workstation computers Desktop Screen Savers should be disabled.


15.  Configure Instant Messenger Service, such as MSN Messenger or similar applications, in such a way that they do not run automatically at the time of startup or login to Windows. Running these applications may not allow you to launch iBT on the Cache Proxy and Workstation computers.


16.  Video Display Colors: iBT software requires display adapter to be set for 32 bit colors.


17.  Wide Screen Monitors: Should be configured for aspect ratio of 4:3.


18.  Headsets and audio test: Always use iBT certified headsets to ensure good quality audio response recording. While preparing test stations, run the Verification Tool Audio Recording and Playback test and ensure the audio playback quality is good.


19.  iBT Software Installer: The installer requires a specific version of Java Runtime Environment and keyboard driver that can be downloaded and installed from This version of JRE can co-exist with other versions that are already installed on a computer.


20.  Hardware or Software Changes: Always run the Verification Tool and Quick Launches whenever you change/upgrade a computer?s hardware or software to verify that everything works before your test administration date.


Revised on June 5, 2013