1Z0-105 Online Practice Questions and Answers

What statement is true about udev?

A. It uses predefined kernel devices in /dev for all combinations of that may be connected to a system to support dynamic device name assignment.

B. It dynamically creates kernel devices for only those devices that are connected.

C. It produces persistent device names for all devices.

D. Its configuration is based on device properties and attributes maintained in devfs.

Which three statements are true about an OpenLDAP server?

A. /etc/openldap.conf is the main configuration file for the LDAP server.

B. LDAP entries are stored in a flat namespace.

C. It can be used to store users and groups.

D. In can be used to store hostnames and their IP addresses.

E. It can replicate entries synchronously to another OpenLDAP server.

Which three statements are true about Btrfs copy --reflink?

A. It works only on the same btrfs file system.

B. It works only on the same subvolumes.

C. It creates a new link pointing to an existing inode.

D. It creates a new inode that shares the same disk blocks as the original.

E. It creates a clone file and disk blocks are duplicated.

Examine the dtrace command:

dtrace n syscall::read:entry

Which two statements are true?

A. This statement fails with a syntax error because no action is defined.

B. This statement runs successfully with the default action being executed.

C. The probe name is read.

D. The probe name is entry.

E. The probe name is not specified in this command, but it is implied through adjacent colons.

F. This command runs but produces no output; is no predicate to select when the probe fires.

Examine the contents of the dhcp configuration file:

# cat /etc/dhcp/dhcpd.conf

subnet 192.168.100.0 netmask 255.255.255.0 {

range 192.168.100.100 192.168.100.200;

}

host host100 {

hardware ethernet 00:0c:29:B9:07:41;

fixed-address 192.168.100.100;

}

Which statement is true about this DHCPD configuration?

A. An attempt to start DHCPD fails due to the conflicting lease declaration for address 192.168.100.100.

B. A lease request from host100 always fails.

C. A lease request from host100 fails only if address 192.168.100.100 is currently in use.

D. A lease request from host100 succeeds if the host assigned to address 192.168.100.100 is currently offline.

E. A lease request from host100 fails only if a previous lease on address 192.168.100.100 has expired.

Which two statements are true about recursive nameservers that are supported by Oracle Linux? (Choose two.)

A. They may forward requests to authoritative name resolution requests.

B. They cache replies from previous name resolution requsts.

C. They may be authoritative.

D. They may be primary nameservers.

E. They may be secondary nameservers.

Which statement is true about the O2CB cluster service?

A. Local heartbeats are started during the startup of the O2CB cluster service.

B. The service o2cb configure command is used to configure the OCFS2 cluster and all nodes referenced in the /etc/ocfs2/cluster.conf config file.

C. The service o2cb configure command is used to configure the cluster stack and cluster timeout values.

D. Cluster timeout values are stored in the /etc/ocfs2/cluster.conf file.

Which three predefined file system types can be used while creating an OCFS2 volume? (Choose three.)

A. vmstore

B. documents

C. datafiles

D. media

E. heartbeat

F. mail

Consider a cgroup configuration: You execute the command:

Which statement is true after executing the command?

A. The cgdelete command fails when task is running in cgroup D.

B. The cgroup D is deleted and all tasks running in it are moved to its parant cgroup automatically.

C. Any member of the wheel group is allowed to delete cgroup D.

D. The cgroup D is deleted and all tasks running in it are moved to the root cgroup automatically.

The sendmail package is already installed and running on a client system.

Identify the minimum required steps to configure sendmail ro relay outbound emails to an SMTP server.

1.

Install the sendmail-cf package.

2.

Install the sendmail-devel package.

3.

Specify the SMTP server in /etc/mail/sendmail.mc in the SMART_HOST declaration section.

4.

Execute mail in /etc/mail.

5.

Restart mail services by using: service send mail restart.

A. 2, 3, 5

B. 1, 3, 5

C. 2, 3

D. 2, 3, 4, 5

E. 1, 3

F. 1, 2, 3, 5

G. 1, 2, 3, 4, 5