[单项选择] You are investigating the performance of the server and see the following information: Events_waits_summary_global_by_event_name in the performance schema shows that the wait/synch/mutex/sql/LOCK_table_cache event is dominating other wait events. The table_open_cache_overflows status variable is 0. Which action should be taken to remove the performance bottleneck described here?（）
A. Increase the value of table_definition_cache
B. Increase the value of table_open_cache_instances
C. Decrease the value of table_open_cache_instances
D. Increase the value of table_open_cache
E. Decrease the value of table_definition_cache
F. Decrease the value of table_open_cache

[单项选择]You are tuning RMAN to optimize performance. You want tape I/O to be asynchronous when you perform tape backups.Which action should you take?（）
A. Set the BACKUP_TAPE_IO_SLAVES parameter to FALSE
B. Set the BACKUP_TAPE_IO_SLAVES parameter to TRUE
C. Use compression when performing tape backups
D. Configure multiple SBT channels

[单项选择]You are tuning RMAN to optimize performance.You want tape I/O to be asynchronous when you perform tape backups. Which action should you take?（）
A. Set the BACKUP_TAPE_IO_SLAVES parameter to FALSE
B. Set the BACKUP_TAPE_IO_SLAVES parameter to TRUE
C. Use compression when performing tape backups
D. Configure multiple SBT channels

[单项选择]You are getting project performance information as your project is being executed. Based on the performance information, forecasts are updated and reissued. Some factors that could change as forecasts are updated include （）.
A. estimate to complete
B. estimate at completion
C. estimate to complete and estimate at completion
D. none of the above

[单项选择] You have a DHCP serve that runs windows server 2008. You restore the DHCP database by using a recent backup. You need to prevent DHCP clients from receiveing IP addresses that are currently in use on the network. What should you do?（）
A. Add the DHCP server option 15.
B. Add the DHCP serve option 44.
C. Set the conflict detection value to 0.
D. Set the conflict detection value to 2.

[单项选择] You have a file serve that runs windows server 2008. The serve has a shared folder. You need to receive a notification when a user stores more than 500MB of data in the shared folder. You must allow users to store more than 500MB of data in the shared folder. What should you do?（）
A. Create a soft quota.
B. Create a hard quota.
C. Create an active screening file screen.
D. Create a passive screening file screen.

[单项选择] You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference. Which method or feature should you use?（）
A. Compare Period ADDM report
B. AWR Compare Period report
C. Active Session History (ASH) report
D. Taking a new snapshot and comparing it with a preserved snapshot

[单项选择]You notice that the performance of your production 24/7 Oracle database significantly degraded.Sometimes you are not able to connect to the instance because it hangs. You do not want to restart thedatabase instance.How can you detect the cause of the degraded performance?（）
A. Enable Memory Access Mode, which reads performance data from SGA.
B. Use emergency monitoring to fetch data directly from SGA analysis.
C. Run Automatic Database Diagnostic Monitor (ADDM) to fetch information from the latest Automatic Workload Repository (AWR) snapshots.
D. Use Active Session History (ASH) data and hang analysis in regular performance monitoring.
E. Run ADDM in diagnostic mode.

[单项选择]In your project，you have created performance reports to provide the status and progress information to different stakeholders．The results from the performance reports should be compared to the______．
A. project management plan
B. performance measurement baseline
C. earned value calculations
D. none of the above

[多项选择]You plan to use SQL Performance Analyzer to analyze the SQL workload. You created a SQL Tuning Set as a part of the workload capturing. What information is captured as part of this process?（）
A. the SQL text SQL
B. the execution plan
C. the execution context
D. the execution frequency
E. the system change number (SCN)

[单项选择]The (clothes you) wear do not serve only a (pure) practical function. They speak volumes about the (way you) view your personality, your state of mind, your social status, (and even) your aspirations and dreams.
A. clothes you
B. pure
C. way you
D. and even

[多项选择]You are asked to configure real-time performance monitoring (RPM) between two Junos devices to track traffic in your network. Which two application traffic types can you track?（）
A. ICMP
B. SNMP
C. TCP
D. HTTPS

[单项选择]If you want to see a performance by the Beijing Peking Opera Theatre, which phone number would you ring
A. 6841—9283
B. 6848—5462
C. 6301—6688
D. 6523--3320

[单项选择]If you ______ your children well, they will serve the country well.
A. set up
B. make up
C. look up
D. bring up

[单项选择]Customer: ______ if you'd serve me as quickly as possible as I've got an appointment at two fifteen.Waiter: I'll do my best, Madam.

[单项选择]Customer: ______. if you'd serve me as quickly as possible as I've got an appointment at two fifteen.Waiter: I'll do my best, Madam.

[单项选择]A: ______if you'd serve me as quickly as possible as I've got an appointment at two fifteen.B: I'll do my best, Madam.

[单项选择] You have two stand-alone servers that run Windows Server 2003 Service Pack 2 （SP2）. You assign the Secure Server （Require security） IPSec policy to both servers. From Server1， you notice that you cannot access resources on Server2. You need to ensure that you can access resources on Server2. All communications between Server1 and Server2 must be encrypted.  What should you do？（）
A. On Server1， assign the Client （Respond only） IPSec policy.
B. On Server2， assign the Server （Request Security） IPSec Policy.
C. On Server1 and Server2， modify the authentication settings in the Secure Server （Require security） IPSec Policy.
D. On Server1 and Server2， enable Master Key perfect forward secrecy （PFS） in the Secure Server （Require security） IPSec Policy.