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多选题
Examine the details of the Top 5 Timed Events in the following Automatic Workloads Repository (AWR)report:What are three possible causes for the latch-related wait events?（）
A
The size of the shared pool is too small.
B
Cursors are not being shared.
C
A large number COMMITS are being performed.
D
There are frequent logons and logoffs.
E
The buffers are being read into the buffer cache, but some other session is changing the buffers.
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更多 “多选题Examine the details of the Top 5 Timed Events in the following Automatic Workloads Repository (AWR)report:What are three possible causes for the latch-related wait events?（）AThe size of the shared pool is too small.BCursors are not being shared.CA large number COMMITS are being performed.DThere are frequent logons and logoffs.EThe buffers are being read into the buffer cache, but some other session is changing the buffers.” 相关考题
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Which statements are true regarding the system－defined moving window baseline in Oracle Database 11g?()
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Examine the details of the Top 5 Timed Events in the following Automatic Workloads Repository (AWR)report:What are three possible causes for the latch-related wait events?（）A、The size of the shared pool is too small.B、Cursors are not being shared.C、A large number COMMITS are being performed.D、There are frequent logons and logoffs.E、The buffers are being read into the buffer cache, but some other session is changing the buffers.
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多选题Examine the following parameters for a database instance: MEMORY_MAX_TARGET=0 MEMORY_TARGET=0 SGA_TARGET=0 PGA_AGGREGATE_TARGET=500m Which three initialization parameters are not controlled by Automatic Shared Memory Management (ASMM)?（）ALOG_BUFFERBSORT_AREA_SIZECJAVA_POOL_SIZEDSTREAMS_POOL_SIZEEDB_16K_CACHE_SZIEFDB_KEEP_CACHE_SIZE
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多选题You are configuring the PROD database to use an internal tuning algorithm to monitor the performance of the workload. To achieve this configuration， you specify the following parameter settings in the SPFILE:// SGA_TARGET = 512M SHARED_POOL_SIZE = 256M Which two statements are true when modifying the SHARED_POOL_SIZE initialization parameter in the SPFILE？ （）AModifying the SHARED_POOL_SIZE initialization parameter cannot be accomplished if the SGA_TARGET initialization parameter is set to a non-zero value.BModifying the value of the SHARED_POOL_SIZE initialization parameter to zero is not allowed if the SGA_TARGET initialization parameter is set to a nonzero value.CIncreasing the value of the SHARED_POOL_SIZE initialization parameter does not increase the shared pool component size. It sets the lower limit for the size of this component.DDecreasing the value of the SHARED_POOL_SIZE initialization parameter does not reduce the size of the shared pool component immediately. It sets the lower limit for the size of this component.EIncreasing the value of the SHARED_POOL_SIZE initialization parameter immediately increases the shared pool component to the desired size by reallocating the additional memory from the auto-tuned memory components.FDecreasing the value of the SHARED_POOL_SIZE initialization parameter immediately shrinks the shared pool component to the desired size while reallocating the released memory to the memory components that are not auto-tuned.
考题
单选题View the Exhibit to examine the output produced by the following query at three different times since thedatabase instance started and has experienced workloads of different capacities：SQL SELECT substr（component， 0， 10） COMP， current_size CS， user_specified_size US FROM v$memory_dynamic_componentsWHERE current_size!=0；What do you infer from this（）A
The database instance is running with manual PGA management.B
The database instance is running with manual shared memory management.C
The database instance has the MEMORY_TARGET value set to a nonzero value.D
All sessions are connected to the database instance in dedicated mode， and no RMAN or parallel queryoperations have been performed
考题
多选题You notice a high number of waits for the db file scattered read and db file sequential read events in the recent Automatic Database Diagnostic Monitor (ADDM) report. After further investigation, you find that queries are performing too many full table scans and indexes are not being used even though the filter columns are indexed. Identify three possible reasons for this.（）AMissing or stale histogram statisticsBUndersized shared poolCHigh clustering factor for the indexesDHigh value for the DB_FILE_MULTIBLOCK_READ_COUNT parameterEOversized buffer cache
考题
多选题You notice a performance change in your production Oracle database and you want to know which change has made this performance difference. You generate the Compare Period Automatic Database Diagnostic Monitor (ADDM) report to further investigation. Which three findings would you get from the report?（）AIt detects any configuration change that caused a performance difference in both time periods.BIt identifies any workload change that caused a performance difference in both time periods.CIt detects the top wait events causing performance degradation.DIt shows the resource usage for CPU, memory, and I/O in both time periods.EIt shows the difference in the size of memory pools in both time periods.FIt gives information about statistics collection in both time periods.
考题
多选题Examine the details of the Top 5 Timed Events in the following Automatic Workloads Repository (AWR)report:What are three possible causes for the latch-related wait events?（）AThe size of the shared pool is too small.BCursors are not being shared.CA large number COMMITS are being performed.DThere are frequent logons and logoffs.EThe buffers are being read into the buffer cache, but some other session is changing the buffers.
考题
多选题Which statements are true regarding the system-defined moving window baseline in Oracle Database 11g?（）AIt does not allow you to change the moving window size.BAdaptive threshold functionalities use it by default to compute statistics.CIt is created by default with the window size being equal to the AWR retention time.DIt is created when the first snapshot is collected by the Automatic Workload Repository (AWR).
考题
单选题In your database，the STATISTICS_LEVEL initialization parameter is set to BASIC. What is the impact of this setting？（）A
The optimizer statistics are collected automatically.B
Only the timed operating system （OS） statistics and plan execution statistics are collected.C
The Oracle server dynamically generates the necessary statistics on tables as part of query optimization.D
The snapshots for the Automatic Workload Repository （AWR） are not generated automatically. E
Snapshots cannot be collected manually by using DBMS_WORKLOAD_REPOSITORY PACKAGE.
考题
多选题Examine the following parameters for a database instance: MEMORY_MAX_TARGET=0 MEMORY_TARGET=0 SGA_TARGET=0 PGA_AGGREGATE_TARGET=500m Which three initialization parameters are not controlled by Automatic Shared Memory Management (ASMM)?（）ALOG_BUFFERBSORT_AREA_SIZECJAVA_POOL_SIZEDSTREAMS_POOL_SIZEEDB_16K_CACHE_SZIEFDB_KEEP_CACHE_SIZE
考题
多选题The Automatic Shared Memory Management feature is enabled for the PROD database. Currently， a lot of insert activity is taking place in the database， and the memory structures are allocated according to the database workload. As the workload reduces， you decide to perform batch jobs in the database. Which of the following initialization parameters are NOT automatically resized according to the new workload and continue to remain unchanged？（）ALOG_BUFFERBDB_CACHE_SIZECJAVA_POOL_SIZEDLARGE_POOL_SIZEESHARED_POOL_SIZEFSTREAMS_POOL_SIZE
考题
单选题In your running instance， some of the initialization parameters are set as shown below： SGA_MAX_SIZE = 14GB DB_CACHE_SIZE = 1GB SHARED_POOL_SIZE = 3GB STATISTICS_LEVEL = BASIC PGA_AGGREGATE_TARGET = 0 You plan to enable Automatic Shared Memory Management but you are not able to set SGA_TARGET to a nonzero value. What could be the reason？（）A
The STATISTICS_LEVEL initialization parameter is set to BASICB
The PGA_AGGREGATE_TARGET initialization parameter is set to zero.C
The SGA_MAX_SIZE initialization parameter is set to less than 20 GBD
The DB_CACHE_SIZE initialization parameter is set to less than 5 GBE
The SHARED_POOL_SIZE initialization parameter is set to a nonzero value.
考题
单选题You plan to have a larger moving window size for the default system-defined moving window baseline because you want to use the adaptive threshold. Which statement factors in this consideration while increasing the size of the moving window?（）A
The collection level for the AWR should be set to BASICB
The moving window size must be less than Undo RetentionC
The moving window size should be greater than the Automatic Workload Repository (AWR) retention periodD
The moving window size should be equal to or less than the Automatic Workload Repository (AWR) retention period
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