1Z0-100 Online Practice Questions and Answers

You must remove the user harhest from your Oracle Linux system because the person has left the company:

User harhest has numerous files, directories, and a crontab.

You issue:

Userdel r harhest

Which three outcomes result from the execution of this command?

A. Files in the harhest home directory are removed.

B. The home directory of harhest is removed.

C. Files owned by narhest in any directory are removed.

D. All directories owned by harhest are removed.

E. The /var/spool/mail/harhest mailbox is removed.

F. crontab /var/spool/cron/harhest is removed.

Examine the line from /etc/rsyslog.conf: Mail.* -/var/log/maillog

Which statement correctly describes this rule?

A. The rule name prefix of "-" is tolerated for syslog and syslog.sys compatibility with no impact or rsyslog behavior regardless of the global directive settings.

B. The file name prefix of "-" is a way of disabling mail log messages under certain conditions to /var/log/ maillog.

C. The filename prefix of "-" is a performance enhancement. It stops file syncing on every message. The log certain will be the same whether a minus prefix is used or not.

D. The file name prefix of "-" forces file syncing after every message is logged to ensure each message is written to disk force before attempting to write a subsequent message to the same file.

Identify two true statements about the nice command.

A. It may the used to raise the priority of existing processes.

B. It may be used to set the initial priority of a process.

C. A higher nice value makes a process run at a lower priority.

D. By default, a normal user can make a process run at a higher priority.

E. It may be used to lower the priority of existing processes.

Which two actions should be completed when the firstboot utility runs under runlevel 5 in Oracle Linux?

A. Agreeing to the license agreement

B. Registering for software updated

C. Creating a nonadministrative user

D. setting the current date and time to be synchronized with an NTP server

E. Configuring the dtrace facility

Which two statements are true about signal handling in Oracle Linux?

A. The pkill command kills a process by name.

B. A process killed with the default signal always terminates gracefully if it: does not block the kill request.

C. The kill command sends a sigkill (signal 9) by default to the process being killed.

D. The kill command may send a termination signal to more than one process at a time.

E. All signals may be blocked by a process.

Which three statements are true concerning the use of open SSH utilities?

A. SCP always requires a passphrase to be used.

B. SCP permits copies between two remote hosts.

C. SFTP permits transfers between two remote hosts.

D. SSH may be used to execute a single command on a remote host instead of executing the login shell on the remote host.

E. SFTP may be used to execute a command on the remote server.

Examine the commands and output shown:

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

A. The web server has no documents to serve

B. The firewall blocked the connection due to an unintended rule blocking localhost port 80

C. The web server is not listening on the local loopback adapter

D. The system has no route to localhost

Match the bash files with their correct description: (Choose the best answer.)

File name Description

1) /.bash_history a. a list of commands to be executed when you log in 2) /.bash_logout b. a list of commands that is executed every time you open a new shell 3) /.bash_profile c. a list of commands you have executed from a bash shell 4) /.bashrc d. a list of commands to be executed when you exit a login shell

e.

a list of commands executed before the current day

f.

a list of commands executed when a shell script has a nonzero return code

A. 1-c, 2-d, 3-a, 4-f

B. 1-c, 2-b, 3-d, 4-a

C. 1-c, 2-d, 3-a, 4-b

D. 1-e, 2-c, 3-a, 4-d

E. 1-c, 2-d, 3-b, 4-f

Which three statements are true concerning the use of keys generated by the ssh-keygen command? (Choose three.)

A. dsa keys must be protected by a passphrase

B. dsa keys are supported by version 2 of the ssh protocol

C. rsa keys are supported by version 2 of the ssh protocol

D. rsa keys are supported by version 1 of the ssh protocol

E. dsa keys are supported by version 1 of the ssh protocol

F. rsa keys must be protected by a passphrase

Which two are correct about the oracle-rdbms-server-11gR2-preinstall and oracle-validated RPMs? (Choose two.)

A. They are only available to Oracle Premium Support customers

B. They contain a number of other RPMS that are required for a successful Oracle database product installation

C. They have dependencies on a number of other RPMS that are required for a successful Oracle database product installation

D. The oracle-validated RPMS if used, must be installed before installing an Oracle database product

E. The oracle-validated RPMS if used, must be installed after installing an Oracle database product