70-350 Implementing Microsoft Internet Security and Acceleration (ISA) Server 2004 Study Guides

Demo Question 13.

You work as the network administrator at EliteCertify.com. The EliteCertify.com network consists of a single Active Directory domain named EliteCertify.com. The client computers at EliteCertify.com are running Windows XP Professional. The EliteCertify.com network contains an ISA Server 2004 computer named EliteCertify -SR18 which is configured to provide forward Web caching for users on the Internet network. All EliteCertify.com employees work from 8AM to 5PM on usual business days. One morning you received a compliant from the employees that when they are very busy, it takes longer than usual for Web pages to appear. With this information you suspect that insufficient memory is the source of the slow performance of EliteCertify -SR18. You need to confirm you suspicions and thus have to decide to add the appropriate System Monitor performance counters to find out whether insufficient memory is indeed the source of the slow performance. What should you do? (Each correct answer presents part of the solution. Choose TWO.)

A. Add the Memory\Pages/sec System Monitor counter.
B. Add the Process(W3Prefch)\Pool Nonpaged Bytes System Monitor counter.
C. Add the ISA Server Cache\Memory Usage Ratio Percent (%) System Monitor counter.
D. Add the Physical Disk\Avg. Disk Queue Length System Monitor counter.
E. Add the ISA Server Cache\Disk Write Rate (writes/sec) System Monitor counter
F. Add the Memory\Pool Nonpaged Bytes System Monitor counter.


Display Answer

Answer: A, C

Explanation: The ISA Server installation configures several new performance objects that you can use to monitor system performance on the computer running ISA Server. You view the performance objects and their associated performance counters in real time in System Monitor. System Monitor is a monitoring tool that is included with Windows 2000 and Windows Server 2003. Memory\Pages/sec - Pages/sec is the rate at which pages are read from or written to disk to resolve hard page faults. This counter is a primary indicator of the kinds of faults that cause system-wide delays. Process(W3Prefch)\Pool Nonpaged Bytes - Pool Nonpaged Bytes is the size, in bytes, of the nonpaged pool, an area of system memory (physical memory used by the operating system) for objects that cannot be written to disk, but must remain in physical memory as long as they are allocated. ISA Server Cache\Memory Usage Ratio Percent (%) - Shows the percentage of the total amount of cache fetches that are from the memory cache. A high percentage may indicate that it is worthwhile allocating more available memory resources to the cache. A low percentage may indicate that memory resources may be better used elsewhere. Physical Disk\Avg. Disk Queue Length - Is the average number of both read and write requests that were queued for the selected disk during the sample interval. ISA Server Cache\Disk Write Rate (writes/sec) - Measures the number of writes per second to the disk cache for the purpose of writing URL content to the cache disk. Memory\Pool Nonpaged Bytes - Pool Nonpaged Bytes is the size, in bytes, of the nonpaged pool, an area of system memory (physical memory used by the operating system) for objects that cannot be written to disk, but must remain in physical memory as long as they are allocated.