Oracle Oracle Certifications 1Z0-100 Questions & Answers

• Question 41:

  Examine this output captured on an NFS server:

  # mount | grep export

  /dev/sdc1 on /export type ext3 (rw)

  /dev/sdc2 on /export/share2 type ext3 (rw)

  # cat /etc/exports

  /export (*ro)

  You mounted the /export filesystem on an NFS client using the command:

  # mount NFS_SERVER:/export/mnt

  What is the result of listing the files in /mnt/share2 on the NFS client?

  A. It lists any files stored in the share2 directory in the /dev/sdc1 partition of the NFS server.

  B. It lists any files stored in the root directory in the /dev/sdc2 partition of the NFS server.

  C. It results in a permission denied error.

  D. It results in a stale NFS handle error.

  E. It produces no output.

  Correct Answer: B

• Question 42:

  A web server on HOST01 is listening on port 80.

  Examine the IPTABLES rule shown: [root@host01 ~] # iptables –L INPUT

  Chain INPUT (policy ACCEPT)

  target port opt source destination ACCEPT tcp - -anywhere anywhere tcp dpt:http

  Another rule is then added:

  [root@host01 ~] # iptables –A INPUT –P tcp - - dport 80 –j REJECT

  What is the effect of this command on subsequent attempts to access the web server on HOST01 using port 80?

  A. New connection attempts timeout.

  B. New connection attempts are refused and the client informed of the refusal.

  C. New connection attempts always succeed.

  D. New connection attempts succeed until a reload of the firewall rules.

  Correct Answer: A

• Question 43:

  Identify three features/functions enabled by using asmlib?

  A. Application-to-disk data integrity checking

  B. Device naming persistence

  C. Replaces udev for all files used by any application

  D. Device ownership persistence

  E. Multipathing driver for luns used for asmdisks

  F. locking facility for using luns in an ASM cluster

  Correct Answer: DEF

• Question 44:

  You must remove a Physical Volume (PV) from a Volume Group (VG) containing one Logical Volume (LV) without compromising data availability.

  

  What must you do before using the vgreduce command, to remove the PV?

  A. Move allocated physical Extents (PE) from /dev/sdd to other physical volumes using the pvmove command.

  B. Remove the /dev/sdd PV using the pvremove command.

  C. Resize the /dev/sdd PV to zero using the pvresize command.

  D. Move allocated physical Extents (PE) from /dev/sdd to other physical volumes by using the 1vvonvert

  -replace command.

  Correct Answer: D

• Question 45:

  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 info from all facilities 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. Messages with a priority of debug or higher from the mail facility are sent to /var/log/message

  D. Only messages with a priority of debug from the mail facility are sent to /var/log/messages.

  Correct Answer: C

• Question 46:

  Which three methods might be used to change kernel parameters, thereby modifying the values for running system?

  A. Using the echo command to write values to specific files in the /sys directory

  B. Issuing the sysct1 -w command to write values to specific files in the /proc/sys directory

  C. Issuing the sysct1 -w command to write values to specific files in the /sys directory

  D. Adding to or modifying parameters in /etc/sysct1.conf and issuing the sysct1 -p command

  E. Using the echo command to write values to specific files in the /proc/sys directory

  Correct Answer: BDE

• Question 47:

  Examine some of the contents of the /boot/grub/grub.com file from an Oracle Linux system:

  Default=0 Timeout=5 Splashimage=(hd0, 0)/grub/splash.xpm.gz Hiddenmenu Title Oracle Linux Server (2.6.39-100.0.12.16uek.x86_64)

  Root (hd0, 0)

  Kernet /vmlinuz-2.6.39-100.0.12.e16uek.x86_64 ro root=UUIP=a4b6049b-9aa1-44b4-87cfaebb17alcdf9 rd_NO_LUKS re_NO_LVM rd_NO_DM LANG=en_US.UTF-8 SYSFONT=1atarcycreheb-sun16 KEYBOARDTYPE=PC KEYTABLE=us rhgb quiet numa=off Initrd /initramfs-2.6.39-100.0.12.e16uek.x86_64.img Title Oracle Linux Server (2.6.32-131.0.15.e16.x86_64)

  Root (hd0, 0)

  Kernel /vmlinuz-2.6.32-131.0.15.e16.x86_64 ro root=UUIS=a4b6049b-9aa1-44b4-87cf-aebb17a1cdf9 rd_NO_LUKS rd_NO_LVM rd_NO_LVM re_NO_MD rd_NO_DM LANG=en_UD.UTF-8 SYSFONT=latarcyheb-sun16 KEYBOARDTYPE=PC KEYTABLE=us Crashkernel=auto rhgp quiet numa = off

  Initrd /initramfs-2.6.32-131.0.15.e16.x86_64.img

  Which three statements are true about the behavior and configuration of GRUB on this system?

  A. (hd0, 0) represents the first partition on device /dev/hd0.

  B. The hiddenmenu directive hides the GRUB menu only for 5 seconds after which it becomes visible again.

  C. The root directive specifies an initial root filesystem, allowing access to block device modules to mount the real root filesystem on disk.

  D. (hd0, 0) represents the first partition on the first drive detected by the BIOS.

  E. The initrd directive specifies the initamfs, an initial root filesystem in RAM, allowing access to block device modules to mount the real root filesystem.

  F. Each kernel must have an initramfs that matches the version of the kernel.

  G. Because there is an Unbreakable Enterprise Kernel installed, it must be the default kernel listed as shown by the default=0 directive.

  Correct Answer: ACE

• Question 48:

  The default locations and paths used by logwatch are:

  /etc/logwatch/conf /user/share/logwatch/default.conf /user/share/logwatch/dist.conf

  Which three statements are true logwatch installation and configuration?

  A. After installing logwatch, no configuration is required to produce reports from system logs.

  B. After installing logwatch, the /usr/share/logwatch/dist.conf directory will not exist because it is optional.

  C. After installing logwatch, you must create /etc/logwatch/conf to produce reports from system logs.

  D. After installing logwatch, all the default directories continue to exist.

  E. To produce a report from the previous day's logs, the - - range yesterday parameter must be specified.

  F. Running /usr/sbin/logwatch produces a report of the previous day's log files.

  Correct Answer: ABC

• Question 49:

  Which three tasks should be performed to configure a host to act as an SSH server?

  A. The openssh-server package must be installed.

  B. The sshd service must be started.

  C. The openssh package must be installed.

  D. The openssh-client package must not be installed.

  E. The ssh-agent must be running.

  Correct Answer: ACE

  Reference: https://access.redhat.com/site/documentation/en- US/Red_Hat_Enterprise_Linux/6/html/ Deployment_Guide/s2-ssh-configuration-sshd.html

• 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.

  Correct Answer: B