Oracle DBA启动和关闭例程精选试题及答案
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
Q. 6 : Tom issued a command to startup the database. What modes does the Instance and Database pass through to finally have the database open
1. OPEN, NOMOUNT, MOUNT
2. NOMOUNT, MOUNT, OPEN
3. NOMOUNT, OPEN, MOUNT
4. MOUNT, OPEN, NOMOUNT
2
Q. 7 : Diane is a new dba and issued a shutdown command while her server is being used. After a while she figures that oracle is waiting for all the users to sign off. What shutdown mode did she use
1. NORMAL
2. ABORT
3. IMMEDIATE
4. NONE
1
Q. 8 : Which script file creates commonly used data dictionary views
1. sql.bsq
2. catalog.sql
3. utlmontr.sql
4. catproc.sql
2
Q. 9 : In order to perform a full media recovery, the Database must be¡
1. Mounted and Opened using RESETLOG option
2. Mounted but not Opened
3. Mounted and Opened using ARCHIVELOG option
4. You cannot perform a full media recovery
2
Q. 10 : When is the parameter file read during startup
1. When opening the Database
2. When mounting the Database
3. During instance startup
4. In every stage
3
Q. 11 : What is the default mount option for an Oracle Database
1. SHARED
2. PARALLEL
3. EXCLUSIVE
4. RETRY
3
Q. 12 : You cannot start a database instance if you are connected to the database via a shared server process.
1. TRUE
2. FALSE
3. Depends on the O.S
4. Depends on the O.S and Network Protocol
1
Q. 13 : The shutdown mode that requires instance recovery at next startup is
1. NORMAL
2. ABORT
3. IMMEDIATE
4. None of the above
2 : Uncommitted transactions are not rolled back. So the instance needs recovery.Refer to Shutting Down instance.
Q. 14 : Which command only mounts the database
1. STARTUP OPEN
2. STARTUP NOMOUNT
3. STARTUP FORCE
4. STARTUP MOUNT
3
Q. 15 : Which shutdown mode shuts down the instance but does not go through the dismount phase
1. NORMAL
2. ABORT
3. IMMEDIATE
4. NONE
2
Q. 16 : Which startup mode should you use to start up an instance for maintenance
1. OPEN
2. MOUNT
3. NOMOUNT
4. FORCE
2 : The database must be closed when you add, drop, rename the redo log files rename the datafiles perform full database recovery. Refer to Starting up an instance
Q. 17 : Which command should you use to open a database for normal use while it is already mounted
1. ALTER DATABASE OPEN
2. ALTER SYSTEM OPEN DATABASE
3. STARTUP DATABASE
4. STARTUP OPEN
1
Q. 18 : Which shutdown mode waits for all users to disconnect before completing the shutdown
1. ABORT
2. IMMEDIATE
3. FORCE
4. NORMAL
4
Q. 19 : Which mount should you use if multiple instances will be allowed to access the database
1. RETRY
2. EXCLUSIVE
3. PARALLEL
4. NONE
3
Q. 20 : What is the fastest mode to shutdown the database
1. NORMAL
2. ABORT
3. IMMEDIATE
4. NONE
2 : The operation of writing all data in the buffers of the SGA to the datafiles and redo log files is skipped.Refer to Database and Instance Startup and Shutdown.
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