Oracle 1Z0-100 Online Practice Questions and Exam Preparation

Oracle 1Z0-100 Online Questions & Answers

• Question 41:

  What is the purpose of executing 1vconvert 璵1 ...? (Choose the best answer.)

  A. to detach a copy from a mirrored logical volume
  B. to reattach a detached copy back to its original logical volume
  C. to add an additional copy to an already mirrored logical volume
  D. to convert a linear logical volume into a mirrored logical volume
  E. to convert a mirrored logical volume into a linear logical volume
  D. to convert a linear logical volume into a mirrored logical volume

• Question 42:

  Which three settings can be controlled by using the chage breemar command as the root user, to modify the parameters in the /etc/shadow file?

  A. The expiration date of the breemar account
  B. The number of days after the breemar account is locked, that it becomes expired
  C. The maximum number of days that must elapse between password changes by the user breemar before the password becomes invalid
  D. The number of days after the breemar account is locked, that it becomes unlocked
  E. The minimum number of days that must elapse between password changes by the user breemar
  F. The maximum number of failed login attempts on the breemar account before the account is locked
  A. The expiration date of the breemar account
  C. The maximum number of days that must elapse between password changes by the user breemar before the password becomes invalid
  E. The minimum number of days that must elapse between password changes by the user breemar

  ---

  A: chage -E, --expiredate EXPIRE_DATE

  Set the date or number of days since January 1, 1970 on which the user's account will no longer be accessible.

  CE: You need to use chage command to setup password aging. The chage command changes the number of days between password changes and the date of the last password change. This information is used by the system to determine

  when a user must change his/her password.

• Question 43:

  Which two statements are true concerning the installation and configuration of the bootloader by the Anaconda installer, which is then used to boot Oracle Linux?

  A. The Linux Loader (LILO) bootloader may be chosen for installation.
  B. The bootloader must be password protected and Anaconda prompts for a password in all cases.
  C. The Grand Unified Bootloader (GRUB) is the only bootloader used by Oracle Linux.
  D. If previously installed operating systems are found on disk partitions that were not overwritten, then an attempt is made to configure the bootloader to be able to boot them.
  E. The bootloader is installed by default in the first partition of the disk.
  A. The Linux Loader (LILO) bootloader may be chosen for installation.
  E. The bootloader is installed by default in the first partition of the disk.

  ---

  A (not C): Linux boot process from hard drive:

  1.

  PC initializion phase - BIOS, POST.

  2.

  PC starts boot loader - usually grub or lilo.

  3.

  The bootloader locates kernel image on the hard drive.

  4.

  The kernel decompresses and loads itself. Once finished it tries to mount the root filesystem.

  5.

  When the root filesystem is mounted, /sbin/init is executed and continues booting the system using inittab and /etc/rc*.d scripts

• Question 44:

  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.
  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.

• Question 45:

  Which type of nameserver is provided by the default bind configuration files on Oracle Linux?

  A. A primary name server
  B. A secondary name server
  C. Recursive caching-only nameserver
  D. An authoritative name server
  E. Slave name server
  A. A primary name server

• Question 46:

  Examine this extract from the /etc/ssh/sshd_config file:

  passwordAuthentication no

  What is the effect of this parameter settings on the use of openSSH commands on both the client and server?

  A. Passwords are not required and no ssh-keygen is required either. Only passphrase are required.
  B. Client users whose keys are not in the authorized_keys file on the server are unable to use passwords to authenticate themselves to the server.
  C. The ssh daemon does not ask for a password before starting or stopping the sshd service.
  D. Client users whose keys are not in the authorized_keys file on the client are unable to use passwords to authenticate themselves to the server.
  B. Client users whose keys are not in the authorized_keys file on the server are unable to use passwords to authenticate themselves to the server.

  ---

  If you set PasswordAuthentication to no, you will no longer be able to use a login and password to authenticate and must use a login and public key instead (if PubkeyAuthentication is set to yes).

• Question 47:

  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.
  B. SCP permits copies 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.

• Question 48:

  Which three statements describe the OSWatcher Black Box (OSWbb) system monitoring and troubleshooting tool? (Choose three.)

  A. OSWbb is a part of the standard Oracle Linux distribution
  B. OSWbb is an Oracle product and must be installed after system installation using yum or rpm
  C. OSWbb is an Oracle product and is installed by downloading is from MOS and unpacking a tar file
  D. OSWbb is a set of scripts using traditional UNIX monitoring tools to gather system activity and performance data
  E. OSWbb maintains an archive of text files containing gathered statistics
  F. OSWbb is designed to work with any POSIX-compliant shell
  C. OSWbb is an Oracle product and is installed by downloading is from MOS and unpacking a tar file
  D. OSWbb is a set of scripts using traditional UNIX monitoring tools to gather system activity and performance data
  E. OSWbb maintains an archive of text files containing gathered statistics

• Question 49:

  Examine this MDAM output:

  

  Which two aspects can be determined from this output?

  A. A RAID device failed and has been replaced with the hot spare.
  B. A new RAID device was just added to replace a failed one.
  C. Read and write performance is currently not optimal on this RAID set.
  D. Only write performance is currently not optimal on this raid set.
  E. An extra device was added to this RAID set to increase its size.
  A. A RAID device failed and has been replaced with the hot spare.
  E. An extra device was added to this RAID set to increase its size.

• Question 50:

  Examine the UserDir directives in this extract from /etc/httpd/conf/httpd.conf:

  UserDir enabled user1

  UserDir disabled user1

  UserDir public_html

  The web server URL is http://host01.

  A website server URL is http://host01.

  A user attempts to access user1's webpages using this URL:

  httpd:/host01/~user1

  Which statement describes the outcome?

  A. The occurrence user1 in the list of disabled users causes an access denied error to the website contained in user1'1 public_html subdirecroty, overriding the enabled directive.
  B. The occurrence of user1 in the list of enabled users allows access to the website contained in user1's public_html subdirectory, overriding the disabled directive.
  C. The configuration produces an error upon web server startup, because the enabled and disabled directive conflict.
  D. Access is guaranteed because the UserDir public_html directive applies default access to all local users on the system, overriding the enabled of disabled directive.
  B. The occurrence of user1 in the list of enabled users allows access to the website contained in user1's public_html subdirectory, overriding the disabled directive.