Free Oracle 1z1-105 Exam Dumps Questions & Answers

What are two ways to invoke the rescue procedure for Oracle Linux while booting from the installation media?

• A.Press the Shift+Ctrl keys on thegrubloader menu.
• B.Press theEsckey on thegrubloader menu.
• C.selecting "Rescue Installed System" on the Oracle Linux Boot Menu screen.
• D.selecting "Rescue Installed System" on thegrubloader menu.
• E.Press theEsckey on the Oracle Linux Boot Menu screen.
• F.Press the Shift+Ctrl keys on the Oracle Linux Boot Menu screen.

Examine the D scrypt:
syscall::read:entry,
syscall::write:entry
/pid == $1/
{
ts[probefunc] = timestamp;
}
syscall::read:return,
syscall::write:return
/pid == $1 && ts[probefunc] != 0/
{
printf("%d nsecs", timestamp - ts[probefunc]);
}
Which statement is true about this script?

• A.It produces aggregations of system calls made by the process whose PID is passed as a command-line argument represented by $1. You see which system calls are issued, and how many times, over a fixed interval.
• B.It produces a measure of useful time spent in read and write system calls for the process whose PID is passed as a command-line argument represented by $1.
• C.It produces elapsed times for reads and writes to the entry and returns DTrace probes for the process whose PID is passed as a command-line argument represented by $1.
• D.It produces elapsed times between entry and return of read and write system calls for the process whose PID is passed as the first command-line argument to the D script, represented by $1.

Which two statements are true about recursive nameservers that are supported by Oracle Linux?

• A.They may be secondary nameservers.
• B.They may forward requests to authoritative name servers on some occasions.
• C.They may be primary nameservers.
• D.They cache replies from previous name resolution requests.
• E.They may be authoritative.

Examine the dtrace command.
dtrace -q -n syscall:::
Which two statements are true?

• A.The command produces minimal output, but this includes the CPU on which the probe fires, theprobe ID, and the probe name.
• B.Thedtracecommand matches with all probes in the syscall provider.
• C.The command produces no output.
• D.The probe name specification is incorrect and does not match with any probes. This produces an "invalid probe specifier syscall:::" error message.
• E.The-qoption is invalid when not used with an explicit action, as in this case.

After creating empty mount point /xfs1, you execute the command:
# mkfs -t xfs -L /xfs1 -l logdev=/dev/sdd1 /dev/sdh1
Which two statements are true about the effects of executing the mkfs command?

• A.It fails because there is no size specified for the XFS log.
• B.Thexfs1file system is mounted automatically during system startup.
• C.It fails if there is an existing XFS file system on/dev/sdh1.
• D.It creates and mounts the/xfs1file system.
• E.It fails if there is an existing XFS file system on/dev/sdd1.
• F.It fails if there is an existing XFS log on/dev/sdd1.