Oracle Linux 5 and 6 System Administration - 1z1-100 Exam Questions [2026]

QUESTION NO: 1
Examine the commands and output shown:

What is the cause of this connection refusal? (Choose the best answer.)

A. The web server is not listening on the local loopback adapter B. The system has no route to localhost C. The web server has no documents to serve D. The firewall blocked the connection due to an unintended rule blocking localhost port 80

Correct Answer: D

QUESTION NO: 2
Refer to the Exhibit.
[root@server1 ~ # 1s -1 /usr/bin/passwd
-r-x-x-x 1 root root 21200 oct 7 21:01 /usr/bin/passwd
[root@server1 ~] # 1s -1 /etc/shadow
-r - - - - - - - - 1 root root 1818 Mar 7 10:31 /etc/shadow]
[root@server1 ~]#
A user smith is on your system complained that he is not able to change his password. As the administrator, you long-listed the passwd command and the /etc/shadow file.
View the Exhibit that shows the output.
What must you do to enable this user to change his password?

A. Set SGID on /usr/bin/passwd. B. Set sticky bit on /usr/bin/passwd. C. Set read and write permission for others on /etc/shadow. D. Set permission on /etc/shadow to 600. E. Set SUID on /usr/bin/passwd.

Correct Answer: E

QUESTION NO: 3
You want to convert an rpm packages file into a standard format as part of a shell script and then manipulate the contents.
Which archive format is used by rpm?

A. bzip2 B. gzip C. zip D. tar E. cpio

Correct Answer: E

QUESTION NO: 4
The SSHD service is controlled by the script in /etc/init.d/sshd, part of which is shown here:
[root@FAROUT ~] cat /etc/init.d/sshd
# !/bin/bash
#
# sshdStart up the OpenSSH server daemon
#
# chkconfig: 23455525
# description: SSH is a protocol for secure remite shell access. \
# This service starts up the Open SSH server daemon.
#
You issue chkconfig commands to change the sshd service:
[root@FAROUT ~] # chkconfig sshd off
[root@FAROUT ~] # chkconfig sshd reset
What is the result of the two commands issued?

A. The sshd service configuration is restored to the settings that existed before setting it off. B. The sshd service configuration is restored to start in run levels 2 and 5 only. C. The sshd service configuration is restored to start In run levels 2, 3, 4 and 5. D. The sshd service configuration is restored to those that existed after the operating system was first installed.

Correct Answer: D

QUESTION NO: 5
Which three statements are true about the shared directories defined in the /etc/exports file?

A. By default, a directory is shared read write. B. By default, a directory is shared with no root squashed. C. By default, a directory is shared read only. D. By default, a directory is shared with root squashed. E. By default, a directory is shared sync.

Correct Answer: C,D,E

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QUESTION NO: 6
As root, you enter a crontab command as shown;
[root@FAROUT cron.daily] # crontab -1
*/2 * * * * vmstat
0 0 1 1-5 * iostat
[root@FAROUT cron.daily] #
Which three statements are true concerning the two cron jobs listed?

A. The iostat command runs at midnight on the first day of each of the first five months of the year. B. All cron job output is sent to /var/log/messages. C. The vmstat command runs twice per hour. D. The iostat command runs at midnight of every day except Sunday. E. All cron job output is sent to the root user's mall. F. The vmstat command runs every second minute. G. The vmstat command runs every other hour.

Correct Answer: A,E,F

QUESTION NO: 7
Examine the output of a bonded interface configuration from which one network cable has been unplugged:

Which statement is true when you plug in the eth2 network cable?

A. The status of the slave interface eth2 changes to up and becomes a backup slave B. The status of the slave interface eth2 changes to up but must be manually assigned the active or backup slave role. C. The status of the slave interface eth2 changes to up and becomes a second active slave. D. The status of the slave interface eth2 changes to up and is promoted to the primary active slave whereas eth1 becomes the backup slave

Correct Answer: C

QUESTION NO: 8
Examine some rules from the /etc/rsyslog.conf file:
*.info;mail.debug;authpriv.none;cron.none/var/log/messages
uucp, news.notice/var/log/spooler
Which statement is true about the listed rules?

A. Only messages with a priority of debug from the mail facility are sent to /var/log/messages. B. Only messages with a priority of notice from the news facility are sent to /var/log/spooler. C. Only messages with a priority of info from all facilities are sent to /var/log/messages. D. Messages with a priority of debug or higher from the mail facility are sent to /var/log/message

Correct Answer: D

QUESTION NO: 9
An Oracle Linux system has not been updated for a while and the currently running kernel is three releases behind the most recent kernel release.
Each released kernel fixed several problems, totaling 11 bug fixes.
You are about to update this kernel using this command:

How does Ksplice Uptrack apply these updates? (Choose the best answer.)

A. It downloads 11 updates and applies them one by one to the running kernel B. It downloads three updates and applies them in a single transaction to the running kernel C. It downloads 11 updates and applies them in a single transaction to the running kernel D. It downloads three updates, clones the running kernel in memory, applies the updates in one single atomic update, and uses Kexec to activate the updated kernel

Correct Answer: A