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Free : 1z0-046 Exams

　
　
Exam : Oracle 1Z0-046
Title : Oracle? Database 10g:Managing Orcale on Linux for DBAs

1. Which three statements are true about Oracle Clustered File System (OCFS)? (Choose three.)
A. There is no limit on the number of files on OCFS.
B. You can use OCFS for database files as well as general files.
C. You can create an OCFS using Logical Volume Manager (LVM).
D. You must modify the Linux kernel parameters before mounting OCFS.
E. Standard file system commands, such as mkdir, rmdir, and mv, are available on OCFS.
Answer: ABE

2. A non-General Public License (GPL) driver was loaded on a Linux machine. To verify that the module has tainted the kernel, you executed the cat /proc/sys/kernel/tainted command and received the following output:
[root@edtdr6p1 root]# cat /proc/sys/kernel/tainted
1
What do you infer from the output? (Choose all that apply.)
A. A proprietary module has been loaded.
B. A module is marked unsupported by the vendor.
C. All the loaded modules have General Public License (GPL).
D. A module was force-loaded by using the insmod -f command.
Answer: AD

3. Examine the content of the /proc/sys/kernel/tainted file on your Linux machine:
[root@edtdr6p1 root]# cat /proc/sys/kernel/tainted
1
What will happen when you install Oracle Database 10g on this machine?
A. Installation will fail because of the tainted kernel.
B. Installation will be successful, but Oracle will not provide support for the database product.
C. Installation will be successful. Oracle will provide support for the database product but not for the operating system (OS).
D. Installation will be successful and Oracle will provide support for the database product as well as the OS.
E. Successful installation and Oracle support for database product as well as Linux OS will depend on the module tainting the kernel.
Answer: E

4. The OS user BOB is a member the osoper OS group in the database server. You want BOB:
To be able to connect "/ as sysdba"
To be authenticated by the operating system
Which of the option would fulfill the requirement?
A. Assign the sysdba privilege to BOB.
B. Assign the osdba OS group to BOB.
C. Set the REMOTE_LOGIN_PASSWORDFILE initialization parameter to SHARED.
D. Set the REMOTE_LOGIN_PASSWORDFILE initialization parameter to EXCLUSIVE.
Answer: B

5. ho.sh is an executable shell script. You executed the following command that leads to an error:
What could you do to execute the command successfully in the next attempt?
A. Provide the shell reference with the command.
B. Remove the shell reference present inside the shell script.
C. Execute the command as the root operating system user.
D. The extension for the output file should be changed to .log.
Answer: A

6. You need to ensure that whenever you create a new file, it should have the following set of permissions:
u=rwx,g=rx,o=rx.
Which statement can you add to the .bashrc script to set the desired file permissions?
A. umask 455
B. umask 012
C. umask 0755
D. chmod u=rwx,g=rx,o=rx
Answer: C

7. You executed the ipcs -m command to list all the shared memory segments in your Oracle server.
View the Exhibit exhibit1 that shows the output of this command.
Later, you executed the same command to check the shared memory segments.
View the Exhibit exhibit2 that shows the output of this command.
Why is the large shared memory segment not listed in the second Exhibit?
A. The Oracle database instance is shut down.
B. The swap space has been increased in the system.
C. The Oracle database instance is configured in shared server mode.
D. The large pool size set for the Oracle database instance is reset to zero.
Answer: A

8. You attempt to modify the ksms.s library and relink the Oracle database executable to use the address 0X15000000 for the System Global Area (SGA). You receive an error.
Which set of commands would you use to restore the original settings?
A. echo 0X1000000 > ksms.s
　make -f ins_rdbms.mk ksms.s
B. echo 0X15000000 > ksms.s
　make -f ins_rdbms.mk ioracle
C. make -f ins_rdbms.mk ksms.s
　make -f ins_rdbms.mk ioracle
D. genksms > ksms.s
make -f ins_rdbms.mk ksms.o
make -f ins_rdbms.mk ioracle
E. genksms -s 0X10000000 > ksms.o
Answer: D

9. You want to install Oracle Database 10g on a Linux machine. You want to ensure that no tainted modules are loaded on the kernel. Which commands will you execute to achieve this?
A. uname -r
B. uname -v
C. cat /proc/version
D. cat /proc/sys/kernel/tainted
Answer: D

10. In an online transaction processing (OLTP) database instance that involves a high volume of data manipulation language (DML) operations, you decide to increase the value of the LOG_BUFFER parameter.
What could be the reason for this change?
A. The buffer busy wait event has been detected.
B. The no free buffers event has been detected.
C. The log buffer space wait event has been detected.
D. The log file completion wait event has been detected.
E. The value for the free buffer inspected statistics is growing.
Answer: C

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