Increase the number of CPUs.
Increase the physical memory.
Set the PSALLOC environment variable to ’late’.
Set the PSALLOC environment variable to ’early’.
第1题:
An AIX 5L system has 2 active paging space devices - /dev/hd6 at 64MB in the rootvg and /dev/page01 at 256MB in the datavg. The system administrator has determined that only 192MB of active paging space is actually required and wants to reclaim some of the disk space for use by a new application. Which command should be used to reduce the size of /dev/page01?()
第2题:
An Administrator notices a decrease in the performance of his site. This is directly related to an increase in usage. After further investigation he notices that users appear to be pooling up in the web server. Which of the following would cause this to occur?()
第3题:
You are making a sharp turn in a channel and using a buoy four points on the bow to gauge your rate of turn.If you observe the buoy moving aft relative to you,what should you do ________.
A.Increase the rate of turn
B.Decrease the rate of turn
C.Maintain a constant rate of turn
D.Decrease speed
第4题:
You are the administrator of 20 Windows XP Professional computers. Each computer has one hard disk that has three volumes named C, D, and E. Each volume is 4 GB in size and has approximately 1 GB of available space. The total physical memory of each computer is 196 MB in size. The paging file on each computer is located on drive D. A user named Andrea reports that every day, one hour after she starts her Windows XP Professional computer, the computer appears to perform very slowly for 15 seconds. This always happens after she receives an error message stating that the system is low on virtual memory. You want to improve the performance of Andrea's computer. You do not want to install additional memory. What should you do?()
第5题:
You find that the database performance degrades while you backup the PROD database using Recovery Manager (RMAN). The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation?()
第6题:
On an IBM System Stoage DS8000 which of the following information pairs are mandatory to create a volume()
第7题:
A system administrator is monitoring a system that has recently shown a decrease in performance.The administrator suspects that the system may be low on memory and may be paging excessively.Which of the following commands is best to identify a possible paging problem?()
第8题:
A system administrator increases the mbuf pool allocation, then runs vmstat. It is noticed that the paging rate has not decreased. What is the most effective option to maintain the mbuf pool and decrease paging?()
第9题:
You work as a database administrator for Certkiller .com. You find that the database performance degrades while you backup the Certkiller database using Recovery Manager (RMAN). The Certkiller database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation?()
第10题:
You are developing an application that connects to a Microsoft SQL Server database using the SqlConnection object. Your connection objects are being pooled. As the pool fills up, connection requests are queued. Some connection requests are rejected. You need to ensure that the application releases connections back to the pool as soon as possible. Also, you need to decrease the likelihood that connection requests will be rejected. Which three actions should you perform?()