单选题You have specified the warning and critical threshold values of an application tablespace to be 60% and 70%， respectively. From the tablespace space usage metrics， you find that the actual space usage has reached the specified warning threshold value， 

第1题：

You want to be notified when the space usage of an existing critical tablespace has reached 75% of the allocated space. Which option would you use to achieve this？（）

• A、run a procedure to check the tablespace space usage
• B、define the warning threshold for the tablespace at 75% in Database Control
• C、create a trigger to be executed when tablespace space usage reaches 75%
• D、submit a job by using DBMS_JOB package to check the free space in the tablespace at regular intervals
• E、define the warning threshold to be 75% for the tablespace by ALTER TABLESPACE .. ADD THRESHOLD command

第2题：

As a database administrator you spend a lot of time observing and setting various storage parameter values for your application tables in order to gain performance benefits. Which task would you perform to reduce this overhead？（）

• A、Coalesce the application tables at a regular interval.
• B、Export and Import the application tables a regular interval.
• C、Drop and recreate the application tables at a regular interval.
• D、Move the application tables to a tablespace with less space usage.
• E、Distribute the application tables across multiple tablespaces depending on usage.
• F、Move the application tables to automatic segment space management tablespace.

第3题：

You are maintaining your OLTP database in Oracle10g. You have not set the warning level and critical level threshold values for space usage of the DATA1 tablespace. What will be the impact？（）

• A、 No warning level or critical level alert will be generated.
• B、 A warning level alert will never be generated， but a critical level alert will be generated when 97 percent space of the DATA1 tablespace is used.
• C、 A critical level alert will never be generated， but a warning level alert will be generated when 85 percent space of the DATA1 tablespace is used.
• D、 A warning level alert will be generated at 85 percent space usage of the DATA1 tablespace， and a critical level alert is generated at 97 percent space usage of the DATA1 tablespace.

第4题：

An online tablespace, TEST_TBS, is full and you realize that no server-managed tablespace threshold alerts were generated for the TEST_TBS tablespace. What could be the reason, if the TEST_TBS tablespace does not include autoextensible data files?（）

• A、TEST_TBS is a small file tablespace 
• B、TEST_TBS is a bigfile tablespace (BFT)
• C、TEST_TBS is the default temporary tablespace
• D、TEST_TBS is a dictionary-managed tablespace
• E、Threshold values for the TEST_TBS tablespace are not explicitly specified

第5题：

You have set Tablespace Full Metrics Threshold values for the USERS tablespace as follows： Warning （%）： 90  Critical （%）： 95  Which background process is responsible for issuing alerts when the threshold is crossed（）

• A、System monitor （SMON）
• B、Process monitor （PMON）
• C、Memory manager process （MMAN）
• D、Manageability Monitor process （MMON）

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You have specified the warning and critical threshold values of an application tablespace to be 60% and 70%， respectively. From the tablespace space usage metrics， you find that the actual space usage has reached the specified warning threshold value， but no alerts have been generated. What could be the reason for this？（）

• A、The EVENT parameter was not set.
• B、The SQL_TRACE parameter is set to FALSE
• C、The Enterprise Manager Grid Control is not used.
• D、The STATISTICS_LEVEL parameter is set to BASIC
• E、The TIMED_STATISTICS parameter is set to FALSE

第14题：

While setting up the thresholds for tablespace space usage metrics for one of your tablespaces， you define the critical threshold as 60% and warning threshold as 75%. What would be the result of this setting？（）

• A、It would result in an error because the warning threshold cannot be more than the critical threshold.
• B、The warning threshold is ignored and alerts would be generated when space usage exceeds the critical threshold.
• C、The critical threshold is ignored and alerts would be generated when space usage exceeds the warning threshold.
• D、Both threshold values are used and alerts are generated when space usage exceeds the respective threshold values.

第15题：

You have set Tablespace Full Metrics Threshold values for the USERS tablespace as follows：Warning （%）： 90Critical （%）： 95 Which background process is responsible for issuing alerts when the threshold is crossed（）

• A、System monitor （SMON）
• B、Process monitor （PMON）
• C、Memory manager process （MMAN）
• D、Manageability Monitor process （MMON）

第16题：

The warning level threshold value for a tablespace， DATA1， is set to 60% and the critical level threshold value is set to 80%. The tablespace， DATA1， is infrequently used and is not a part of the production environment. You issued the following command：        SQL> EXECUTE   DBMS_SERVER_ALERT.SET_THRESHOLD        （dbms_server_alert.tablespace_pct_full，        dbms_server_alert.operator_ge，80，        dbms_server_alert.operator_ge，90，        1，1，NULL，   dbms_server_alert.object_type_tablespace，’DATA’）；   What will be the result of the command？（）  

• A、 The command will be executed successfully only if the tablespace DATA1 is a dictionary-managed tablespace.
• B、 The total numbers of alerts that you receive every day will be reduced.
• C、 The total number of alerts that you receive every day will be increased.
• D、 No more data will be added to the DATA1 tablespace if 80% of the space allocated to the DATA1 tablespace is used.

第17题：

Users are performing a large volume of inserts and deletes on the application tables in the APPS tablespace. You observe that there are several warning alerts being generated for the APPS tablespace space usage metrics. Currently， the warning threshold for the tablespace usage metrics is set to 70%. To make the generated alerts more useful as a problem identification tool， you want to reduce the frequency of alert generation for the tablespace usage metrics for the APPS tablespace. What should you do？（）

• A、 Disable SQL tracing for the APPS tablespace.
• B、 Disable logging attributes for the APPS tablespace.
• C、 Modify the tablespace to be a dictionary-managed tablespace.
• D、 Increase the critical threshold value for the tablespace space usage metrics for the APPS tablespace.
• E、 Increase the warning threshold value for the tablespace space usage metric for the APPS tablespace.

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