1z0-100 試験問題を無料オンラインアクセス

Examine these configuration files:
# cat /etc/auto.master
/net-hosts
/- auto.direct ro
# cat /etc/auto.direct
/nfs1 o16:/export/share1
/nfs2 -sync o16:/export/share2
/nfs o16:/export/share3
Which mount options will automounter use to mount the filesystems listed in /etc/auto.direct?

• A./nfs1 and /nfs3 are mounted read-only, async whereas /nfs2 mounted read-only, sync.
• B.All three filesystems are mounted read-only, async.
• C.All three filesystems are mounted read-write, sync.
• D./nfs1 and /nfs3 are mounted read-only, async whereas /nfs2 mounted read-write, sync.

Which four statements correctly describe the contents of the sysfs filesystem?

• A.It contains metadata on device classes.
• B.It contains metadata on firmware.
• C.It contains metadata on all loaded modules in the kernel.
• D.It contains metadata on all block devices.
• E.It contains metadata on system uptime.
• F.It contains kernel parameter files.

Which two statements are true about administering the use of the Sudo command in Oracle Linux?

• A.visudo prompts for an action if there are syntax errors in the /etc/sudoers file after editing.
• B.visudo will never save the /etc/sudoers file if there are syntax errors in the file after editing.
• C.Using vi to edit /etc/sudoers opens the file read only.
• D.Multiple administrators may edit the /etc/sudoers file simultaneously using vi but only one may save the edited result.
• E.Multiple administrators may edit the /etc/sudoers file simultaneously using visudo but only one may save the edited result.

A web server on HOST01 is listening on port 80.
Examine the IPTABLES rule shown:
[root@host01 ~] # iptables -L INPUT
Chain INPUT (policy ACCEPT)
targetportoptsourcedestination
ACCEPTtcp- - anywhereanywheretcp dpt:http
Another rule is then added:
[root@host01 ~] # iptables -A INPUT -P tcp - - dport 80 -j REJECT
What is the effect of this command on subsequent attempts to access the web server on HOST01 using port
80?

• A.New connection attempts are refused and the client informed of the refusal.
• B.New connection attempts timeout.
• C.New connection attempts succeed until a reload of the firewall rules.
• D.New connection attempts always succeed.

You are about to switch a Red Hat Enterprise Linux 6 (RHEL6) system from the Red Hat Network to the Unbreakable Linux Network (ULN).
Consider this output:
# rpm -qa *rhn*
rhnlib-2.5.22-12.e16.noarch
yum-rhn-plugin-0.9.1-36.e16.noarch
rhn-setup-1.0.0-73.e16.noarch
rhn-client-tools-1.0.0-73.e16.noarch
rhn-check-1.0.0-73.e16.noarch
rhnsd-4.9.3-2.e16.x86_64
Identify four minimum steps that you should perform to successfully switch this system from RHN to ULN.

• A.Create a ULN account if it doesn't exist already.
• B.Run the yum update command.
• C.Ensure you have a valid Oracle Linux support agreement.
• D.Run the uln_register command as the root user and answer the prompts.
• E.Install the uln_register.tgz package.
• F.Reboot your system.
• G.Install the Unbreakable Enterprise kernel (UEK).
• H.Install the uln_register.tgz and uln_register-gnome.tgz packages.