1Z0-105 Online Practice Questions and Answers

Examine the dtrace command.

dtrace q n syscall:::

Which two statements are true?

A. The command produces minimal output, but this includes the CPU on which the probe fires, the probe ID, and the probe name.

B. The dtrace command matches with all probes in the syscall provider.

C. The -q option is invalid when not used with an explicit action, as in this case.

D. The probe name specification is incorrect and does not match with any probes. This produces an "invalid probe specifier syscall:::" error message.

E. The command produces no output.

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.

Consider the features and capabilities of Kernel-based Virtual Machine (kvm). Which two statements are correct?

A. kvm is considered both a type-1 and type-2 hypervisor because it turns the Linux kernel into a bare-metal hypervisor but the OS running on the virtualization host is a full OS.

B. kvm is an open source hypervisor, which provides full virtualization with hardware-assisted virtualization. It does not support paravirtualized devices.

C. There are two kvm modules: a kvm module that provides the core virtualization infrastructure and a kvm_hw module that ensbles x86 hardware virtualization extensions (Intel VT or AMD- V).

D. The kvm hypervisor in Oracle Linux is managed with libvirt API and tools built for libvirt, such as virtmanager and virsh.

E. kvm provides a software package called Linux Integration Services (LIS) that provides integration between the OS running in the kvm virtual machine and the physical host.

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

Ifmodule mod_userdir.c>

UserDir enabled user1

UserDir disabled user1

UserDir public_html

The web server URL is http://host01.

A website exists in the user's directory /home/user1/public_html.

A user attempts to access user1's webpages by using the URL: http://host01/~user1

Which statement describes the outcome?

A. The occurrence of user1 in the list of disabled users causes an access denied error to the website contained in user1's public_html subdirectory, overridding 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, overridding the disabled directive.

C. The configuration produces an error upon web server startup, because the enabled and disabled directives conflict.

D. Access is granted because the UserDir public_html directive applies default access to all local users on the system, overriding the enabled or disabled directive.

When you are using OCFS2, which two statements are true about Linux kernel configuration and use?

A. kernel.panic_on_oops must be set to 1 to prevent a cluster hang.

B. OSFS2 requires the use of the Red Hat compatible kernel.

C. You must compile the OSFS2 module and make it available in the UEK kernel.

D. OCFS2 requires the use of UEK3.

E. kernel.panic must be set to 30 or higher.

Which two statements are true about a btrfs file system on a SSD flash disk? (Choose two.)

A. The TRIM/discard feature is enabled by default.

B. btrfs automatically turns off all optimizations for rotational media.

C. btrfs automatically detects SSD.

D. You must enable the SSD option during the creation of a btrfs file system.

You must configure DHCPD on a system with three network interfaces, each on a separate subnet, so that DHCPD listens on only one of the three statements.

Which method would you use to meet this requirement?

A. Specify subnet declarations without a RANGE specification in /etc/dhcp/dhcpd.conf for the subnets on which DHCPD should not listen.

B. Omit subnet declarations in /etc/dhcpd.conf for the subnets on which DHCPD should not listen.

C. Specify empty subnet declarations /etc/dhcp/dhcpd.conf for the subnets on which DHCPD should not listen.

D. Specify the interface name on which DHCPD should listen in /etc/sysconfig/dhcpd.

While adding the first Access Control List (ACL) to a file located on an ext3 file system, you receive an error:

Identity the reason for the Operation not supported error.

A. The file system in question must be mounted, including the acl mount option.

B. ACLS are not supported when SELinux is enabled.

C. The ac1 RPM must be installed to enable ACL support.

D. The user trying to add the ACL is not the file owner.

E. The setfac1 command shown contains a syntax error.

F. An ext3 file system does not support ACLs.

Examine this OCFS2 configuration and status: Examine these possible steps:

Identify the minimum number of steps, in the correct order, to create a local heartbeat OCFS2 file system on the sdb disk and mount it on the existing /shared mount point.

A. 2, 4

B. 3, 1, 4

C. 2, 4, 6

D. 2, 4, 5

E. 3, 1, 5, 4

F. 3, 1, 4, 6

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