1Z0-100 Online Practice Questions and Answers

Which four statements are true about software on the Oracle Public YUM server?

A. It contains Oracle Linux installation ISO images.

B. It contains Oracle Linux binary RPM packages.

C. It contains Oracle Linux errata packages.

D. It contains Oracle Linux source RPM packages.

E. It contains beta Oracle Linux software packages.

F. It does not contain Unbreakable Enterprise Kernel packages.

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

Your Oracle Linux server has a network interface eth0 but the ifcfg-eth0 file is missing from the /etc/ sysconfig/network-scripts directly.

To set the IP address for the interface, you run this command as root: [root@station1]# ifconfig eth0 192.168.0.1 up

What is the effect of the command?

A. The IP address 192.168.0.1 is not assigned to eth0 because the netmask is not specified.

B. The IP address 192.168.0.1 is assigned to eth0, but the interface is not activated until the network service is reloaded.

C. The IP address 192.168.0.1 is assigned to eth0, but the interface is not activated until the network service is restarted.

D. The IP address 192.168.0.1 is assigned to echo with the default netmask for that address, and the interface is activated immediately.

Which three statements are true concerning filesystems supported by Oracle Linux?

A. An ext3 filesystem can be mounted as an ext2 filesystem.

B. An ext4 filesystem can be mounted as an ext3 filesystem.

C. The ext3 and ext4 filesystems both support multiple journaling modes.

D. The btrfs filesystem includes a volume manager.

E. The btrfs filesystem cannot be used for the root filesystem.

F. The ext4 filesystem is a copy-on-write filesystem.

Consider the output shown:

# rpm –i sendmail-cf-8.14.4-8.e16.noarch.rpm Error: Failed dependencies:

Sendmail = 7.14.4-8.e16 is needed by sendmail-cf-8.e16.noarch # rpm –i sendmail-8.14.4-8.e16.x86_64.rpm # rpm –i sendmail-cf-8.14.4-8.e16.noarch.rpm # rpm -q sendmail sendmail-cf Sendmail-8.14.4-8.e16.x86_64 Sendmail-cf-8.e16_64 Sendmail-cf-8.14.4-8.e16.noarch # rpm –e sendmail

Which statement is true about the execution of the rpm -e sendmail command?

A. It erases the sendmail package without errors.

B. It fails with an error because the package version is not supplied on the command line.

C. It fails with an error because the sendmail-cf package depends on the sendmail package.

D. It erases the sendmail package and raises an error because the sendmail package depends on the sendmail package.

E. It erases both the sendmail and sendmail-cf packages because the sendmail-cf package depends on the sendmail package.

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.

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

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

Which three statements are true about the Oracle Linux Multiple Device Driver (MD)? (Choose three.)

A. RAID devices can only be built on disk partitions

B. It can be configured to have spare devices

C. It supports striping, mirroring, and a combination of striping and mirroring

D. It includes snapshot functionality

E. It can be used to mirror the root filesystem

Which three statements are true regarding the use and administration of su and sudo in Oracle Linux? (Choose three.)

A. A user may use su to start a new shell

B. The /etc/sudoers file may be edited to permit certain executables to be used with root privileges only if they are run on certain hosts

C. Using su-test to switch to the test user does not run the test user's login scripts

D. The /etc/sudoers file may be edited to prevent a user from using su to switch to another user

E. The /etc/sudoers file may be edited to allow a use to execute certain root-owned executables with root privileges

F. The /etc/sudoers file may be edited to prevent root from executing certain executables unless a password is provided