22. You are an administrator for a company that has 25 Windows 2000 Professional computers. You downloaded a new driver for one of your device and attempt to install it to one of the Windows 2000 Professional computers, however the system is blocking you from installing the driver. What can you do to test the new drivers at the same time still prevent other users from installing unsigned drivers?

A. Logon as Local Administrator and install the drivers, administrator should have the full right in Windows 2000 Professional.
B. Logon as Local Administrator and Configure the file signature verification to Warn at the Driver Signing Option Menu and check the apply setting as system default checkbox.
C. Logon as Local Administrator and Configure the file signature verification to Ignore at the Driver Signing Option Menu and check the apply setting as system default checkbox.
D. Logon as Local Administrator and configure driver signing option to Block- Prevent the installation of unsigned files, and tick the apply setting as system default checkbox.
E. Logon as Local Administrator and Configure the file signature verification to Warn at the Driver Signing Option Menu and uncheck the apply setting as system default checkbox.

You can set the driver signing option for file signature verification to ignore, warn or block the installation of device drivers that are not digitally signed by Microsoft. When you set that option to ignore, you allow any drivers that are not signed by Microsoft to be installed without giving any warning to user. When you enable the warn option, the system will warn the user about the unsigned drivers but still allow user to install the driver. Finally, the block option will block any unsigned driver that user try to install. The apply setting as system default can be used to apply the file signature verification setting to all users that log on to a computer, however, only user that has administrator privileges can set this option. Although Administrator is the most powerful user in the Windows 2000 Professional, that doesn't mean Administrator can perform any operations as it is still limited by many security policy in the system. For instances, a user can block administrator from accessing his files if they desire. For this case, you want to try the driver, you should set the option to warn, in addition, because you only want to allow yourself to try the unsigned driver so you should prevent this setting from applying to everyone by disabling the apply setting as system default checkbox.

Answer: E

References:
http://www.microsoft.com/windows2000/en/professional/help/sysdm_hardware_code_signing_options.htm

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29. You are an administrator for a company that has 25 Windows 2000 Professional and one Windows 2000 Server. User reports that response time for one of the servers named MCSASVR is slower that it was. While you monitor the network, you found that the network capacity is still not yet fully utilised. You then monitor MCSASVR by using System Monitor. The results gathered are shown in the following:

Average %Processor Time = 35%
Average %Disk Time = 85%
Average Page/sec = 50

Which of the following will help to improve the server response time significantly? (Choose the best answer)

A. Upgrade the Hard disk to a faster one.
B. Use Disk Defragmenter in the computer management to optimize the hard disk.
C. Adding more RAM to the server.
D. Add more virtual memory to the server.
E. Upgrade the CPU.

The reason that causing the server slows down is the high disk requests, however, the high disk requests is due to the shortage of memory that causing the high page faults/sec at 50. When page fault occurs, the system has to read the hard drive that act as virtual memory to obtain some of the information that need to be processed in the memory. To improve the response time, you need to add more RAM to the system so those page faults will be decreased and reduce the %Disk Time. Using disk defragmenter will help to improve the speed but will not increase the speed significantly since the disk request will continue high when page faults are high. Since the CPU time is not utilised near to its capacity, adding or upgrading a new CPU will not help to improve the server response time. Finally adding more Virtual memory will not improve the response time since the virtual memory will be stored in the hard disk which is a lot slower than Real Physical memory.

Answer: C

References:
http://www.microsoft.com/windows2000/en/server/help/sag_mpmonperf_15.htm

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