“扌斤十八”通过精心收集，向本站投稿了6篇OracleDBA启动和关闭例程笔试题，下面就是小编整理后的OracleDBA启动和关闭例程笔试题，希望大家喜欢。
- 目录
篇1：OracleDBA启动和关闭例程笔试题
OracleDBA启动和关闭例程笔试题
q. 1 : the database must be in this mode for the instance to be started
1. mount
2. open
3. nomount
4. none
3
q. 2 : when oracle startups up, what happens if a datafile or redo log file not available or corrupted due to o.s problems
1. oracle returns a warning message and opens the database
2. oracle returns a warning message and does not open the database
3. oracle returns a warning message and starts the database recovery
4. oracle ignores those files and functions normally
2
q. 3 : the restricted session system privilege should be given to
1. users, who need extra security while transfering the data between client and the server through sql*net or net8.
2. dbas, who perform structural maintenance exports and imports the data.
3. all of the above
4. none of the above
2
q. 4 : when starting up a database, if one or more of the files specified in the control_files parameter does not exist, or cannot be opened
1. oracle returns a warning message and does not mount the database
2. oracle returns a warning message and mounts the database
3. oracle ignores those files and functions normally
4. oracle returns a warning message and starts database recovery
1
q. 5 : bob tried to shutdown normal, oracle said it was unavailable, and when he tried to starup, oracle said that it was already started. what is the best mode that bob can use to force a shutdown on the server
1. normal
2. abort
3. immediate
4. none
2
篇2：OracleDBA笔试题
OracleDBA笔试题
解释冷备份和热备份的不同点以及各自的优点
解答：热备份针对归档模式的'数据库，在数据库仍旧处于工作状态时进行备份，而冷备份指在数据库关闭后，进行备份，适用于所有模式的数据库。热备份的优点在于当备份时，数据库仍旧可以被使用并且可以将数据库恢复到任意一个时间点。
冷备份的优点在于它的备份和恢复操作相当简单，并且由于冷备份的数据库可以工作在非归档模式下,数据库性能会比归档模式稍好。（因为不必将archive log写入硬盘）
2. 你必须利用备份恢复数据库，但是你没有控制文件，该如何解决问题呢？
解答：重建控制文件，用带backup control file 子句的recover 命令恢复数据库，
3. 如何转换init.ora到spfile?
解答：使用create spfile from pfile 命令
4. OracleDBA面试题：解释data block , extent 和 segment的区别（这里建议用英文术语）
解答：data block是数据库中最小的逻辑存储单元。当数据库的对象需要更多的物理存储空间时，连续的data block就组成了extent . 一个数据库对象拥有的所有extents被称为该对象的segment.
5. 给出两个检查表结构的方法
解答：1、DESCRIBE命令
2、DBMS_METADATA.GET_DDL 包
篇3：OracleDBA创建数据库笔试题
OracleDBA创建数据库笔试题
q. 1 : this symbol, when you put infront of a line in the parameter file,
1. $
2. @
3. #
4. !
3
q. 2 : when you change a parameter value in the parameter file, when will
1. immediately after saving the parameter file
2. at the first checkpoint after saving the paramter file
3. when the dbwr finishes writing all the dirty buffers to the disk
4. at the next instance startup
4
q. 3 : alter system deffered command modifies the global parameters for
1. existing sessions after a certain amount of time
2. new sessions only
3. existing and new sessions
4. depends on the spin_count initialization parameter
2
q. 4 : the location where debugging trace files for back ground processes are
1. logfile_dest
2. oracle_home
3. background_dump_dest
4. core_dump_dest
3
q. 5 : in case of heavy contention for latches, set the log_simu
1. twice the number of cpus
2. same as the db block buffers
3. same as the shared pool size
4. none of the above
4
篇4：OracleDBA存储管理笔试题
OracleDBA存储管理笔试题
q. 1 : oracle immediately re-uses the space assigned to row-directory portion of the data block once you delete the corresponding rows.
1. true
2. false
2
q. 2 : which of the following three portions of a data block are collectively called as overhead.
1. table directory, row directory and row data
2. data block header, table diretory and free space
3. table directory, row directory and data blcok header
4. data block header, row data and row header
3
q. 3 : which portion of the data block contains table or index data
1. table directory
2. row directory
3. overhead
4. row data
4
q. 4 : what are the two space management parameters for controling the use of free space in a data block
1. initial and next
2. pctfree and pctused
3. tablespace and storage
4. free space cannot be controlled at block level
2
q. 5 : the maximum number of transactions that a block can support is
1. 100
2. 255
3. 1000
4. unlimited
2
篇5：OracleDBA用户管理笔试题
OracleDBA用户管理笔试题
q. 1 : the default tablespace clause in the create user command sets the location for
1. database objects created by the user
2. temporary objects created by the user
3. system objects created by the user
4. none of the above
q. 2 : what does sessions_per_user in a resource limit set
1. no of concurrent sessions for the database
2. no of sessions per user
3. no of processes per user
4. none of the above
q. 3 : what keyword during the create user command, limits the space used by users objects in the database
1. size
2. next_extent
3. max_extents
4. quota
q. 4 : what value sets the no activity time in minutes before a user is disconnected
1. idle_time
2. disconnect_time
3. connect_time
4. none of the above
q. 5 : what operations are limited by the quota on a tablespace
1. update
2. delete
3. create
4. all of the above
篇6：OracleDBA逻辑备份笔试题
OracleDBA逻辑备份笔试题
q. 1 : what option of exporting allows quicker data extractions
1. grants =y
2. consistent =y
3. direct = true
4. direct=y
4 : direct=y option bypasses the sql layer to allow quicker data extractions
q. 2 : how are exports useful ?
1. can be used to recover to a point in time
2. can be used to recover from a media failure
3. can be used to recover dropped tables due a user error
4. none of the above
3
q. 3 : what are the 3 levels of exports
1. global, user, tablespace
2. full, user, table
3. full, tablespace, table
4. global, local, transactional
2
q. 4 : the following methods can be used to run exports
1. interactive dialog
2. export section of data manager in oem
3. command line interface with parameter file
4. all of the above
4
q. 5 : which of the following are valid parameters for an export utility
1. log
2. statistics
3. direct
4. all of the above
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OracleDBA启动和关闭例程笔试题（精选6篇）
