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Exam : Oracle 1z0-403
Title : Enterprise Linux System Administration


1. As a root user, you issue the following command at the tty1 terminal:[root@server1]# shutdown -k -t 5 now "Server1 is going for a shutdown, Please save all your work" What is the purpose of issuing this command?
A. To shut down server1 by suppressing warning messages
B. To send warning messages to all the users logged on to server1 and then shut down server1
C. To send warning messages to all the users logged on to server1 before server1 goes for a
reboot
D. To send only warning messages to all the users logged on to server1 without actually shutting
server1 down
Answer: D

2. The output of the pstree command is shown below:
[root@server1 ~]# pstree | grep login
|-3*[login---bash]
|--login--bash--vim
|
Which command would you use to terminate all login sessions on the text terminals? (Choose all
that apply.)
A. pkill login
B. kill -5 login
C. killall login
D. killall5 login
E. kill -KILL login
Answer: AC

3. You want to load the main kernel module for USB support. Which command would help youachieve this task?
A. modprobe usbhid
B. modprobe usbcore
C. modprobe uhci-hcd
D. modprobe ehci-ocd
Answer: B

4. You have configured the system with a static IP address as shown below:
USERCTL=yes
DEVICE=eth0
BOOTPROTO=static
ONBOOT=yes
IPADDR=192.168.0.1
NETMASK=255.255.255.0
ETHTOOL_OPTS="speed 100 duplex full autoneg off"
Which two implications does it have on the system? (Choose two.)
A. The IP address is retained across reboots.
B. The ethtool constraints remain persistent across reboots.
C. Normal users can modify the static IP address of the system by using the ifconfig command.
D. Normal users cannot use ifup and ifdown commands to make the interface active and inactive,
respectively.
E. The system cannot contact any other system in the same network because the default
gateway is missing in the configuration file.
Answer: AB

5. On an Oracle Enterprise Linux system, upon booting, you got an error message as shown in the
Exhibit. Which minimal steps would you take to fix this issue and boot the system successfully?
(Choose all that apply.)
A. Run e2fsck on root filesystem / after issuing the root password.
B. Set Security Enhanced Linux (SELinux) on the system to permissive mode.
C. Replace fs_freq and fs_passno in the /etc/fstab file with the value 0.
D. Enter the root password and remount the root filesystem / in read/write mode.
E. Identify the correct label for the root filesystem using the blkid or the e2label command.
F. Change the LABEL=/1 entry with the original label of root filesystem / in the /etc/fstab file.
Answer: DEF

6. You have bound your system to the Network Information Service (NIS) domain ORACLE and all client-side configurations are done. The users report a problem that they are not able to log in through NIS accounts, whereas local users are successfully authenticated, after the system reboots. As a Linux administrator, you executed the nisdomainname command and you get the output "(none)", and no traces of yp are found in the /var/log/messages file. What would you do to resolve this error? (Choose all that apply.)
A. Re-create the NIS domain on the server that runs the NIS domain ORACLE.
B. Restart the ypserv service on the server that runs the NIS domain ORACLE.
C. Restart the network service on the server that runs the NIS domain ORACLE.
D. Use the chkconfig command to set the ypbind service to be on at the desired runlevels.
E. Use the ntsysv command to select the ypbind service to be automatically started with the
desired runlevels.
Answer: DE

7. Which two statements are true about a kernel patch? (Choose two.)
A. Patches are always the part of a released kernel tree.
B. After applying a patch, it is important to remove the kernel sources of earlier versions.
C. After applying a patch, it is important to make sure that the entire kernel configuration and
Makefiles are cleaned up.
D. If patches are not built from clean unpatched kernel sources, then a change in one patch may
make other patches to fail.
Answer: CD

8. Match the shutdown options with their descriptions: Option Option Description
1) k a) forces fsck on reboot
2) f b) uses /etc/shutdown.allow
3) F c) skips fsck on reboot
4) a d) sends warning messages to all those logged on without actually shutting down the system
A. 1-d, 2-c, 3-a, 4-b
B. 1-c, 2-b, 3-d, 4-a
C. 1-a, 2-c, 3-d, 4-b
D. 1-b, 2-a, 3-c, 4-d
Answer: A