Oracle 1z0-105 問題集

質問 1：
You run the crash utility on an Oracle Linux system after a kernel panic and use the bt - a command as shown:
crash> bt -a
PID: 286 TASK: c0b3a000 CPU: 0 COMMAND: "in.rlogind"
#0 [c0b3be90] crash_save_current_state at c011aed0 #1 [c0b3bea4] panic at c011367c #2 [c0b3bee8] tulip_interrupt at c01bc820 #3 [c0b3bf08] handle_IRQ_event at c010a551 #4 [c0b3bf2c] do_8259A_IRQ at c010a319 #5 [c0b3bf3c] do_IRQ at c010a653 #6 [c0b3bfbc] ret_from_intr at c0109634 EAX: 00000000 EBX: c0e68280 ECX: 00000000 EDX: 00000004 EBP: c0b3bfbc DS: 0018 ESI: 00000004 ES: 0018 EDI: c0e68284
CS: 0010 EIP: c012f803 ERR: Ffffff09 EFLAGS: 00000246
#7 [c0b3bfbc] sys_select at c012f803 #8 [c0b3bfc0] system_call at c0109598 EAX: 0000008e EBX: 00000004 ECX: bfffc9a0 EDX: 00000000
DS: 002b ESI: bfffc8a0 ES: 002b EDI: 00000000
SS: 002b ESP: bfffc82c EBR: bfffd224
CS
EIP: 400d032e
ERR:
0000008e
EFLAGS:
00000246
Which two statements are true about the purpose of the bt -a command?
A. It shows stack traces of the active task on each CPU.
B. The output of each CPU must be requested separately.
C. It may help show a relationship between panicking tasks on one CPU and tasks on other CPUs.
D. It shows stack traces of all tasks and threads.
正解：A,D

質問 2：
Which two statements are true about debugging OCFS2?
A. Theo2imagecommand copiesOCFS2file system data from the device to the specified image file.
B. You must mount thedebugfsfile system to enablethe use of thedebugfs.ocfs2command.
C. You must unmount allocfs2file systems to enable the use of thedebugfs.ocfs2command.
D. Theo2imagecommand copiesOCFS2file system metadata from the device to the specified image file.
E. Trace bits has two possible statuses: allow and deny.
正解：B,D
解説: (Topexam メンバーにのみ表示されます)

質問 3：
Which two commands can be used to find the cgroup to which a given process with PID belongs?
A. lscgroup | grep PID
B. ps -o cgroup | grep PID
C. cgget -a | grep PID
D. cat /proc/PID/cgroup
正解：B,D
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Examine the output of the lscgroup command:
cpuset, cpu, memory:/ cpuset, cpu, memory:/A2 cpuset, cpu, memory:/A2/A3 cpuset, cpu, memory:/B1 cpuset, cpu, memory:/A1 blkio:/ blkio:/B1 cpuacct:/ Which statement changes the shares parameter of the cpu subsystem for the group A3 to a value
of 2?
A. cgset -r shares=2 cpu:/A2/A3
B. cgset -r cpu.shares=2 A3/A3
C. cgset -r cpu.shares=2 cpuset, cpu, memory:/A2/A3
D. cgset -r cpu.shares=2 A3
正解：A

質問 5：
Match the web server directives to their description:
A) ServerRoot
1) Defines the IP address/Post number combination that the server is accessible on
B) Listen
2) Defines the domain name that this server responds to, as used in a browser URL
C) Include
3) Is used to specify the inclusion of specific functional executable modules
D) LoadModule 4) Defines the directory location of all configuration files, documents, and scripts E.)ServerName 5) Directs the server at startup to support module-specific configuration files
A. A-5, B-2, C-3, D-4, E-1
B. A-4, B-2, C-5, D-3, E-1
C. A-4, B-1, C-5, D-3, E-2
D. A-3, B-1, C-5, D-4, E-2
正解：B

質問 6：
You construct a new udev rule to name a specific removable device, but the rule does not appear to work.
Which command would you use to troubleshoot the new rule?
A. udevadm control
B. udevadm monitor
C. udevadm trigger
D. udevadm settle
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 7：
Examine the code fragment from /etc/tgt/targets.conf:
<target iqn.2013-03.com.example.mypc:1>
backing-store /iSCSIsharedDisk/physDisk1.img
write-cache off
</target>
<target iqn.2013-03.com.example.myps:2>
backing-store / iSCSIsharedDisk/physDisk2.img
initiator-address 192.0.2.105
initiator address 192.0.2.106
write-cache off
</target>
<target iqn.2013-03.com.example.mypc:3>
backing-store /iSCSIsharedDisk/physDisk3.img
write-cache off
</target>
Which statement is true?
A. Theinitiator-addresssyntax is not valid. The address value must be specified as aniqn, not an IP address. Theinitiator-addressparameters are ignored and all targets are visible withoutrestriction.
B. Only the target identified by theiqnending withmypc:2is visible. This target is visible to the specific clients identified by the initiator address.
C. Theinitiator-addresssyntax in not valid. The address value should be specified as aniqn, not an IP address. This causes an error, and onlyiqns ending withmypc:1andmypc:3are visible.
D. All targets are visible to prospective clients, but the targetiqnending withmypc:2is visible exclusively to the specified IP addresses.
正解：C

質問 8：
Which three statements are true about the crash utility in Oracle Linux?
A. It can analyze only dumps produced by thekdumpfacility.
B. It can analyze only dumps produced by theLinux Kernel Crash Dumps (LKCD)facility.
C. It can analyze the state of the system while it is running.
D. It can analyze the state of the system after a kernel crash has occurred by using the memory image file produced from the crash.
E. Thekernel-debuginfoandkernel-uek-debuginfopackages are not included in the Oracle Linux distribution.
正解：A,C,D