1Z0-460 Online Practice Questions and Answers

Correct Answer: C

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The command rpm -q --changelog rpm displays a detailed list of information (updates, configuration, modifications, etc.) about a specific package. This example shows information about the package rpm. However, only the last five change entries in the RPM database are listed. All entries (dating back the last two years) are included in the package itself. This query only works if CD 1 is mounted at /media/cdrom:

rpm -qp --changelog /media/cdrom/suse/i586/rpm-3*.rpm

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Is the patch RPM suitable for my system?

To check this, first query the installed version of the package. For pine, this can be done with

rpm -q pine pine-4.44-188

Correct Answer: D

To configure the Linux system to use the MD5 algorithm, enter: # authconfig --passalgo=MD5 --update

Note: The default algorithm for storing password hashes in /etc/shadow is MD5. I was told to use SHA-512 hashing algorithm. How do I set password hashing using the SHA-256 and SHA-512 under CentOS or Redhat Enterprise Linux 5.4?

You need to use authconfig command to setup SHA-256/512 hashing. This command provides a simple method of configuring /etc/sysconfig/network to handle NIS, as well as /etc/passwd and /etc/shadow, the files used for shadow password support. Basic LDAP, Kerberos 5, and SMB (authentication) client configuration is also provided.

Display Current Hashing Algorithm

Type the following command: # authconfig --test | grep hashing

Sample outputs:

password hashing algorithm is md5 Configure Linux Server To Use The SHA-512 To configure the Linux system to use the SHA-512 algorithm, enter: # authconfig --passalgo=sha512 --update

Correct Answer: A

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Use the sar -q command to report the following information:

The Average queue length while the queue is occupied.

The percentage of time that the queue is occupied.

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The following list describes the output from the -q option.

runq-sz The number of kernel threads in memory that are waiting for a CPU to run. Typically, this value should be less than 2. Consistently higher values mean that the system might be CPU-bound.

%runocc

The percentage of time that the dispatch queues are occupied.

swpq-sz

Swap queue of processes for the sar command.

%swpocc

Swap queue of processes for the sar command.

Correct Answer: AD

A (not C): ASMLib is an optional support library for the Automatic Storage Management feature of the

Oracle Database.

ASMLib allows an Oracle Database using ASM more efficient and capable access to the disk groups it is

using.

D (not B): The Oracle ASMLib kernel driver is now included in the Unbreakable Enterprise Kernel. No

driver package needs to be installed when using this kernel.

Correct Answer: C

Modify the eth0 config file Open the configuration using a text editor such as vi/vim, and make sure file read as follows for eth0 interface # vi /etc/sysconfig/network-scripts/ifcfg-eth0

Correct Answer: B

ASMLib is an optional support library for the Automatic Storage Management feature of the Oracle

Database.

ASMLib allows an Oracle Database using ASM more efficient and capable access to the disk groups it is

using.

Correct Answer: C

Now that the certification of the Oracle Database 11g R2 with Oracle Linux 6 and the Unbreakable Enterprise Kernel has been announced, we are glad to announce the availability of oracle-rdbms-server11gR2-preinstall, the Oracle RDBMS Server 11gR2 Pre-install RPM package (formerly known as oracle-validated). Designed specifically for Oracle Linux 6, this RPM aids in the installation of the Oracle Database.

Reference: Oracle RDBMS Server 11gR2 Pre-Install RPM for Oracle Linux 6 has been released

Correct Answer: A

According the grub .conf file you have got 8 seconds to choose whether to boot the first entry.

Now if you want to change, and let say you want the second grub entry as booting system by default, just change the line: default=0 by default=1

Correct Answer: D

-k, --skel SKEL_DIR The skeleton directory, which contains files and directories to be copied in the user's home directory, when the home directory is created by useradd. This option is only valid if the -m (or --create-home) option is specified.

If this option is not set, the skeleton directory is defined by the SKEL variable in /etc/default/useradd or, by default, /etc/skel.

Note:

* useradd - create a new user or update default new user information Reference: man useradd

Correct Answer: AC

A: Oracle Clusterware is software that enables servers to operate together as if they are one server. Each server looks like any standalone server. However, each server has additional processes that communicate with each other so the separate servers appear as if they are one server to applications and end users.

C: Oracle Linux support customers at the Basic and Premier support levels can download and deploy Oracle Clusterware at no additional license fee or support cost.

Incorrect:

Not D: Oracle ClusterWare services are available for Unix, Linux, and Windows.