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Cache memory的作用是()。
A.提高数据访问速度
B.增加程序可用内存的大小
C.在可不丢失数据的内存中存储数据
D.为操作系统内核增加可用的内存容量
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更多 “ Cache memory的作用是()。 A.提高数据访问速度B.增加程序可用内存的大小C.在可不丢失数据的内存中存储数据D.为操作系统内核增加可用的内存容量 ” 相关考题
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Which two options describe how MySQL Server allocates memory?()
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You have configured Automatic Shared Memory Management. Which four memory structures would be automatically tuned？ （）A、 log bufferB、 Java poolC、 Large poolD、 Fixed SGAE、 Shared poolF、 Streams poolG、 Keep buffer cacheH、 Database buffer cache
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计算机内的存储器呈现出一种层次结构的形式，即（）三层结构。A、Cache-Memory-diskB、Memory-Cache-diskC、CPU-Cache-diskD、CPU-Cache-Memory
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单选题Which of the following defines memory interleaving？（）A
The distribution of data written across all the memory DIMMs and the L1 cacheB
The distribution of data written across all the memory DIMMs in one bankC
The distribution of data written across all the memory DIMMs and the processorD
The distribution of data written across all the memory DIMMs and the L2 cache
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It places frequently accessed data close to the processor to help deliver faster performance.B
It replaces L3 cache memory.C
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It allows the system to address more than 16GB of memory.
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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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单选题Automatic Shared Memory Management is disabled for your database instance. You realize that thereare cases of SQL statements performing poorly because of repeated parsing activity， resulting indegradation of performance. What would be your next step to improve performance？ （）A
Run the SQL Access Advisor.B
Run the Memory Advisor for the sga.C
Run the Memory Advisor for the pga.D
Run the Memory Advisor for the shared pool.E
Run the Memory Advisor for the buffer cache.
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单选题You are analyzing how Oracle processes user statements. SQL and PL/SQL parse information is stored in which of the following database memory areas? （）A
Library cache B
Row cacheC
Dictionary cache D
Large area E
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单选题You create an Oracle 10g database and configure the SPFILE as follows： SGA_TARGET=2G DB_CACHE_SIZE=512M LOG_BUFFER=50M DB_KEEP_CACHE_SIZE=128M You modify the SGA_TARGET initialization parameter using the following statement： SQLALTER SYSTEM SET SGA_TARGET = 1G SCOPE = BOTH； Which entity does this statement affect？（）A
only the auto-tuned memory componentsB
only the memory components that are not auto-tunedC
both the auto-tuned memory components and the non-auto-tuned memory componentsD
neither the auto-tuned memory components nor the non-auto-tuned memory components
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The minimum memory size for the database buffer cache is set to 100 mb.B
The maximum memory size that can be obtained by the database buffer cache during ASMM is set to100 mbC
The minimum memory size allocated for a server process in the database buffer cache in dedicatedmode is set to 100 mb.D
The maximum memory size from the database buffer cache that can be released for dynamicdistribution during ASMM is set to 100 mb
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单选题Automatic Shared Memory Management is disabled for your database instance. You realize that there arecases of SQL statements performing poorly because of repeated parsing activity， resulting in degradation ofperformance. What would be your next step to improve performance（）A
Run the SQL Access AdvisorB
Run the Memory Advisor for the sga.C
Run the Memory Advisor for the pga.D
Run the Memory Advisor for the shared pool.E
Run the Memory Advisor for the buffer cache
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单选题计算机内的存储器呈现出一种层次结构的形式，即（）三层结构。A
Cache-Memory-diskB
Memory-Cache-diskC
CPU-Cache-diskD
CPU-Cache-Memory
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The statement fails because you cannot set the memory components manually if the SGA_TARGET initialization parameter is set to a nonzero value.B
The statement fails because the DB_8K_CACHE_SIZE initialization parameter is not a dynamic parameter.C
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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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