Oracle Oracle Certifications 1Z0-100 Questions & Answers

• Question 31:

  Which statement correctly describes the default location of the GRUB bootloader code used by Oracle Linux? (Choose the best answer.)

  A. All of the GRUB bootloader code is written to the Master Boot Record (MBR)

  B. A portion of the GRUB bootloader code is written to the Master Boot Record (MBR) and the rest is written to the / filesystem

  C. All of the GRUB bootloader code is written to the /boot filesystem

  D. A portion of the GRUB bootloader code is written to the /boot filesystem and the rest is written to the / filesystem

  E. A portion of the GRUB bootloader code is written to the Master Boot Record (MBR) and the rest is written to the /boot filesystem

  Correct Answer: E

• Question 32:

  The user smith, whose primary group is smith, wants to create a file in his home directory, which belongs to the group apps.

  Which two statements are correct?

  A. SGID should be set on smith's home directory to let smith create files that belong to a group that is not his primary group.

  B. The user smith can create a file that belongs to the apps group, only If his private group is the apps group as per /etc/group.

  C. The user smith can use the newgrp command to change the primary group to apps, only if smith is listed in /etc/group as a member of the apps group.

  D. The user smith can use the newgrp command to change the primary group to apps, but a password is required if smith is not listed in /etc/group as a member of the apps group.

  Correct Answer: CD

• Question 33:

  Which three are valid directories for cron jobs to be run at known intervals?

  A. /etc/cron.hourly

  B. /etc/cron.daily

  C. /etc/cron.minutely

  D. /etc/cron.monthly

  E. /etc/cron.yearly

  F. /etc/cron.annually

  Correct Answer: ABD

  Explanation: An alternative to editing the crontab is to place executable scripts into one of the following directories. The script will be run at the appropriate interval.

  /etc/cron.hourly /etc/cron.daily /etc/cron.weekly /etc/cron.monthly This is actually using anacron, rather than cron, but it achieves a similar goal. Reference: http:// www.oracle-base.com/articles/linux/cron-on-linux.php

• Question 34:

  Which statement is FALSE concerning the use of OpenSSH utilities? (Choose the best answer.)

  A. scp always requires a passphrase to be used

  B. scp permits copies between two remote hosts

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

  D. sftp may be used to execute a command on the remote server

  Correct Answer: A

• Question 35:

  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

  Correct Answer: B

• Question 36:

  You installed the sendmail-cf package using the yum command as shown: # yum –Y install sendmail-cf Loaded plugins: security Setting up Install Process Resolving Dependencies - -> Running Transaction Check - - - > Package sendmail-cf.noarch 0:8.14.4-8.e16 will be installed - - > Processing Dependency: sendmail = 7.14.4-8.e16 for package: sendmail-cf-8.14.4-8.e16.noarch - - > Running transaction check - - > Package sendmail.x86_64 0:8.14.4-8.e16 will be installed - - > Finished Dependency Resolution Dependency Resolved

  

  What is the outcome of the YUM command?

  # yun y remove sendmail

  A. It fails with an error because the sendmail-cf package depends on the package being removed.

  B. It succeeds and removes both the sendmail and sendmail-cf packages.

  C. It succeeds and only removes the sendmail package.

  D. It removes the sendmail packages and raises a warning about the sendmail-cf package, which

  depends on the package being removed.

  E. It removes the sendmail package and prompts you for the option to remove the sendmail-cf package.

  Correct Answer: D

• Question 37:

  Examine the output shown:

  [root@FAROUT fs] # rpm –qa | grep preinstall Oracle-rdbms-server-11gR2-preinstall-1.0-6.e16.x86_64

  [root@FAROUT fs] # rpm –q1 oracle-rdbms-server-11gR2-preinstall-1.0-6.e16.x86_64 /etc/rc.d/init.d/ oracle-rdbms-server-11gR2-preinstall-firstboot /etc/sysconfig/Oracle-rdbms-server-11gR2-preinstall-verify /etc/sysconfig/oracle-rdbms-server-11gR2-preinstall/Oracle-rdbms-server-11gR2-preinstall.param /usr/bin/oracle-rdbms-server-11gR2-preinstall-verify

  Which three statements are true about oracle-rdbms-server-11gR2-preinstall-1.0-6.e16.x86_64 rpm?

  A. It is a new name for oracle-validated package from Oracle Linux 5 that sets parameters to the same values.

  B. It creates the oracle user if not already created, which owns the Grid Infrastructure software should that get installed.

  C. It creates the grid user if not already created which owns the grid infrastructure software should that get installed.

  D. It modifies kernel parameters in /etc/sysctl.conf.

  E. It runs at the first boot after installing the packages to set a parameter indicating that is has run once.

  F. It modifies parameters in the /etc/sysconfig/network-scripts directly.

  G. It creates the osoper group, if not already created.

  Correct Answer: CEF

• Question 38:

  The dailyrun.sh shell script run by the user hr on a daily basis suddenly returns an error.

  You investigate this by running the commands manually as user hr and discovered that this line of shell cod is responsible: 1s als > /home/prodrun/files.1st Bash: files.1st:cannot overwrite existing file What is the cause of this error?

  A. The hr user has no write permissions on the /home/prodrun/files.1st file.

  B. The hr user has no write permissions on the /home/prodrun directory.

  C. The dailyrun.sh shell script has the setuid bit turned off.

  D. The hr user environment has set on the noclobber option.

  Correct Answer: B

• Question 39:

  Which three actions may be performed using the date command in Oracle Linux?

  A. Setting the hardware clock from the current system time

  B. Setting the system time from the hardware clock

  C. Displaying the current time in an administrator-specified format

  D. Displaying the time and date in the future

  E. Displaying the time and date in the past

  F. Synchronizing the system time from an ntp server

  Correct Answer: BCF

• Question 40:

  Match the following symbolic notations of the file permissions with their numeric values: 1) - - - S - - - - - - a) 5000 2) - - - - - - S - - - b) 4100 3) - - - - - - - - - - t c) 7101 4) - - - S - - - - - T d) 1001 5) - - - S - - S - - t e) 7040 6) S - - S r - - - T f) 2010

  A. 1-d, 2-f, 3-b, 4-e, 5-c, 6-a

  B. 1-b, 2-f, 3-d, 4-a, 5-c, 6-e

  C. 1-f, 2-a, 3-c, 4-b, 5-e, 6-d

  D. 1-b, 2-d, 3-f, 4-a, 5-e, 6-c

  Correct Answer: C