[单项选择]（） controls the operation of the computer and performs it's data processing functions.
A. CPU
B. Disk
C. Memory
D. I/O

[单项选择]（）controls the operation of the computer and performs it′s data processing functions.
A. CPU
B. Disk
C. Memory
D. I/O

[单项选择]In addition to bettering group and individual performance, cooperation ______ the quality of interpersonal relationship.
A. ascends
B. compels
C. enhances
D. prefers

[单项选择]Which of the following is a characteristic of perfect competition（）
A. There are a few sellers.
B. The products of different firms are sold at different prices.
C. There are no barriers to entry into the market.

[单项选择]Why does the author suggest that you try your perfume or cologne out on somebody else first
A. It may make your date uncomfortable.
B. It may make you feel sick.
C. It may have been out-of-date.
D. It may ruin your dinner.

[单项选择]"... nor does giving people breakfast improve performance" (in Para. 3 Line 7) means ______.
A. anyone without breakfast does improve his performance
B. not giving people breakfast improves performance
C. having breakfast does not improve performance, either
D. people having breakfast do improve performance, too

[单项选择]After the use of the laser beam, surgeons can perform operations which ______.
A. leave the patients with negative effects
B. can. treat only human eye disease
C. do little damage to the patients themselves
D. make the patients need a long time to recover

[单项选择]What controls eye movements
A. The body.
B. The eyes themselves.
C. The hand.
D. The mind.

[单项选择]The poor quality of the film mined the ______ perfect product.
A. rather
B. much
C. otherwise
D. particularly

[单项选择]Operation Buccaneer is
A. directed by the officials of the Customers Service.
B. conducted by the Federal Bureau of Investigation.
C. carried out under the cooperation with many people.
D. supported by the Central Intelligence of America.

[单项选择] You observe that database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks.  Which advisory component would you refer to， in order to determine the required size of the database buffer cache？（）
A. Memory Advisor
B. Segment Advisor
C. SQL Tuning Advisor
D. SQL Access Advisor
E. Automatic Database Diagnostic Monitor （ADDM）

[单项选择]Your network contains a computer named Computer1 that runs Windows 7.You need to verify if Computer1 has active DirectAccess connections to the network.What should you do？（）
A. From Network Connections, right-click the active network connection, and then click Status.
B. From Network Connections, select the active network connection, and then click Diagnose this connection.
C. From Windows Firewall with Advanced Security, click Monitoring, and then click Connection Security Rules.
D. From Windows Firewall with Advanced Security, click Monitoring, click Security Associations, and then click Main Mode.

[单项选择]About the computer towns and the computer clubs, David Tebutte thinks that______
A. it is just to take trouble to see the two working side by side
B. the computer towns are more important than the computer clubs
C. they can complement each other but there is great difference between
D. the computer clubs are as important as the computer towns

[单项选择]A （）computer is a personal computer whose hardware is capable of using any or all of the following media in a program: audio, text, graphics, video and animation.
A. database
B. multimedia
C. network
D. mainframes

[单项选择]The bos.perf package is part of the base operating system. Performance Diagnostic tool， PDT， is a part of bos.perf.  All of the following statements are true EXCEPT？（）
A.  PDT attempts to identify performance problems automatically by collecting and integrating a wide range of performance， configuration and availability data.
B.  PDT consists of three components， the collection component comprises a set of programs that periodically collect and record data， the retention component periodically reviews the collected data and discards data that is obsolete， and the reporting component periodically produces a diagnostic report from the current set of historical data.
C.  PDT contains  motif-based， AIX licensed programs that can easily access tools for system and network performance tuning， monitoring， and analysis.
D.  PDT assesses the current state of a system and tracks changes in workload and performance. It attempts to identify incipient problems and suggest solutions before the problems become critical.

[单项选择]Which configuration command controls the source IP address for packets sent to a RADIUS server？（）
A. radius override nas-ip-addr
B. radius source-ip-address 10.13.7.55
C. radius update-source-address 10.13.7.11
D. radius authentication server 10.13.7.55