|Exam Name||:||Oracle Database 10g: Managing Oracle on Linux for DBA(R) s|
|Questions and Answers||:||126 Q & A|
|Updated On||:||October 23, 2017|
|PDF Download Mirror||:||1Z0-046 Dump|
|Get Full Version||:||Pass4sure 1Z0-046 Full Version|
It was noticed that the database writer (DBWR) process was not able to write data to the hard disk. On investigation, you find the ORA-600 error in the alert log file. To investigate further, you want to examine the trace file generated for the same. Where can you find this file?
In the location specified by the CORE_DUMP_DEST initialization parameter
In the location specified by the BACKGROUND_DUMP_DEST initialization parameter
In the location specified by the DB_RECOVERY_FILE_DEST initialization parameter
Which of the following file systems are certified by Oracle? (Choose all that apply.)
Virtual File Allocation Table (VFAT)
Oracle Cluster File System (OCFS)
Oracle Automatic Storage Management (ASM)
View the Exhibit and examine the running of the rda.sh script.
Then, run the following command as the root operating system (OS) user:
# ./rda.sh –v What is the result of this?
It produces an error, quotingthe cannot create setup, cfg file.
It collects only the operating system information and populates it into the output directory.
It produces RDA-00015: Warning - 23 database request(s) not executed and the script is terminated.
It produces the ORA-12546:TNS:permission denied error but the script can be run without a database connection
Which command would you use to upgrade the kernel packages and retain the configuration files?
You want to create an Oracle database that uses Automatic Storage Management (ASM) storage. The ASM Library driver is not installed on your Linux machine. Which three prerequisites should you fulfill to complete the database creation? (Choose three.)
The ASM instance should be running.
The ASM instance should have at least two disk groups.
The Cluster Synchronization Services Daemon (CSSD) must be running.
The RAW disk devices should be available via the discovery path to the ASM instance.
Ensure that the ASM instance and the database instance have the same Oracle home.
You are monitoring the input/output (I/O) speed of your system. Which three factors would affect the speed? (Choose three.)
Idle time percentage
Number of user processes
You have an ASM instance and an Oracle database instance running on your Linux machine. The Oracle database uses Automatic Storage Management (ASM) for storage and it was created using Database Configuration Assistant (DBCA). Which two statements are true regarding the storage of various database files? (Choose two.)
All the database files use ASM except the online redo log files.
The SPFILE of the ASM instance would be stored on ASM disks.
The SPFILE of the database instance would be stored on ASM disks.
The data files, control files, and online redo log files of the database instance would use ASM for storage.
Which two statements are correct about the DB_WRITER_PROCESSES initialization parameter? (Choose two.)
The default value for DB_WRITER_PROCESSES is (CPU_COUNT+7)/8.
You set DB_WRITER_PROCESSES to greater than one to simulate asynchronous input/output (I/O).
You cannot set DB_WRITER_PROCESSES to greater than one if asynchronous I/O is enabled for the Oracle server.
You cannot set DB_WRITER_PROCESSES to greater than one if the DBWR_IO_SLAVES initialization parameter is set to greater than zero.
You must set an appropriate value for the LOG_PARALLELISM initialization parameter before modifying the default value for DB WRITER PROCESSES.
You want to check the number of processes running in the system and the dependency among them, along with their process IDs. Which Linux monitoring tool would you use for this purpose?
Your company wants to use ASM storage for the new database on a Linux machine. You installed the most recent version of ASM Library drivers available to accomplish the task. Which two objectives are achieved by installing ASM Library drivers? (Choose two.)
All disks are made available to be accessed by an ASM instance.
The oracleasmfs file system is mounted as /dev/oracleasm.
Theoracleasmfs file system would be configured to automatically mount whenever the machine restarts.
Theoracleasmfs file system is created. This eliminates the need for RAW devices for creating an ASM instance.
You are working in a Linux 32-bit processor environment with 4 GB RAM. You need to increase the size of System Global Area (SGA) from the maximum of 1.7 GB up to 2.7 GB. Which method would you use to increase the SGA size so that all the components of SGA can make use of the memory that has been added?
Increase the value of theshmall kernel parameter.
Apply the high-memory Page Table Entries (PTE) patch.
Relocate buffer cache so that it uses a memory-based file system.
Lowermapped_base and relocate SGA to use the lowered address.
Use the enterprise kernel that includes the Page Address Extension (PAE) feature.
You have an ASM instance on a Linux machine. You want to create a database on the same machine that uses the ASM for storage. While creating a single node database, you chose the option of ASM storage but no ASM instance is shown. How could you resolve this issue? (Choose all that apply.)
The CSS daemon is not running, so start it up.
The ASM instance has only one disk group. Add one more disk group to it.
The ASM instance is down. Therefore, start up the instance, and then create the database.
The ASM instance is not listed in the /etc/oratab file. Therefore, edit the file to insert an entry for the ASM instance.
Which three statements about the shmmax parameter are true? (Choose three.)
Affects the kernel settings
Specifies the maximum size of the swap
Limits the size of the shared memory segments
Sets the shared memory values only when a new shell is invoked
Defines the maximum number of shared memory segments across the system
Should be equal to or larger than the largest System Global Area (SGA) on the system
You have a Linux machine with the following features: 1) No RAID configuration 2) Operating system without asynchronous I/O The Oracle database instance is running on the machine. You executed the iostat -d -x 2 2 command and observed the following:
1) High wait time for I/O requests 2) Small request queue size What would you do to ensure better I/O performance?
Add more swap space to the system.
Enable the database instance to use I/O slaves.
Add additional Host Bus Adapters (HBAs) in the system.
Increase the communication area for I/O buffers by increasing the size of the large pool.
You have Oracle Database 10g instance on a Linux machine. You want to schedule the RMAN backup of your database everyday at 7:00 p.m. Which three options can you use to accomplish the task? (Choose three.)
The at OS command
The batch OS command
Thecrontab OS command
Oracle Enterprise Manager Grid Control
User1 is a member of the OSOPER group only. Which two statements are correct about userl? (Choose two.)
User1 can create a database.
User1 owns the Oracle database files.
User1 owns the Oracle installation files.
User1 can connect to the database as SYSOPER.
User1 can connect to that database through operating system (OS) authentication.
To change the value for the shmmax parameter, you issued the following command: echo 2147483648 >/proc/sys/kernel/shmmax After you set the parameter, a power failure caused the machine to reboot. Which statement would be true in this scenario?
The value for shmmax would be reverted to the old value.
The value for shmmax would be prompted for at next booting.
The new value forshmmax would be retained in the next boot.
The higher value for shmmax among the old and new values would be retained.
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