Oracle DBA 数据库结构试题选1(2)
整理：Macro Zeng 　2001-03-20 11:24:51

　　
　　3. PMON
　　4. SMON

　　2 : At a check point dbwr writes all data to data files from memory. At this time the datafile headers have to be updated by LGWR in the absence of a CKPT process


　　Q. 15 : If an application requests data that is already in the memory, it is referred to as a

　　1. Cache Read
　　2. Cache Hit
　　3. Cache Miss
　　4. Cache Latch

　　2


　　Q. 16 : If the data requested is in the memory but had to be reloaded due to aging, it is referred to as

　　1. CACHE HIT
　　2. CACHE REFRESH
　　3. CACHE RELOAD
　　4. None of the above


　　3


　　Q. 17 : If the data requested is not in the servers memory, it is referred to as

　　1. CACHE DISK
　　2. CACHE MISS
　　3. CACHE READ
　　4. None of the above

　　2


　　Q. 18 : You can Dynamically resize the following Parameters in the SGA

　　1. Buffer Cache
　　2. Library Cache
　　3. Dictionary Cache
　　4. None of the above


　　4


　　Q. 19 : The memory area that stores the parsed representation of most recently executed Statements is

　　1. BUFFER CACHE
　　2. LIBRARY CACHE
　　3. DICTIONARY CACHE
　　4. NONE OF THE ABOVE

　　2


　　Q. 20 : The Most recently used data dictionary information is stored in

　　1. DATA DICTIONARY CACHE
　　2. SHARED CACHE
　　3. BUFFER CACHE
　　4. NONE OF THE ABOVE


　　1


　　Q. 21 : The server memory that holds session-specific information is referred to as

　　1. Program or Private Global Area
　　2. Session Global Area
　　3. Temp Space
　　4. None of the above


　　1


　　Q. 22 : The area of memory used by the server as temporary area for sorting is called

　　1. TEMP SPACE
　　2. SORT AREA
　　3. REDO BUFFER
　　4. SORT BUFFER


　　2


　　Q. 23 : The fundamental unit of storage in a data file is

　　1. BYTE
　　2. BIT
　　3. BLOCK
　　4. None of the above


　　3


　　Q. 24 : The process that resolves the in-doubt transactions in a distributed environment is

　　1. ARCH
　　2. PROC
　　3. RECO
　　4. NONE OF THE ABOVE

　　3


　　Q. 25 : The size of each buffer in the database is set using this parameter

　　1. DB_BLOCK_BUFFERS
　　2. DB_BLOCK_SIZE
　　3. DB_BYTE_SIZE
　　4. NONE OF THE ABOVE

　　2


　　Q. 26 : The number of Block Buffers in the database is set in the init.ora using

　　1. DB_BLOCK_SIZE
　　2. DB_BLOCK_BUFFERS
　　3. DB_BUFFER_CACHE
　　4. NONE OF THE ABOVE

　　2


　　Q. 27 : The Parameter that sets the size of the shared SQL Area is

　　1. SHARED_SQL_AREA
　　2. SHARED_POOL_SIZE
　　3. SHARED_CACHE_SIZE
　　4. NONE OF THE ABOVE



　　2

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