1Z0-821 Online Practice Questions and Answers

Correct Answer: B

This procedure captures in a syslog file all failed login attempts.

1.

Set up the /etc/default/login file with the desired values for SYSLOG and SYSLOG_FAILED_LOGINS Edit the /etc/default/login file to change the entry. Make sure that SYSLOG=YES is uncommented.

2.

Create a file with the correct permissions to hold the logging information. Create the authlog file in the /var/adm directory.

3.

Edit the syslog.conf file to log failed password attempts. Send the failures to the authlog file.

Correct Answer: B

Correct Answer: D

Solaris 11 Express makes it pretty easy to set up a local copy of the repository. A common reason folks

need access to a local repository is because their system is not connected to the Internet.

Tthe pkg set-publisher command can be used to for example add a publisher or to enable or disable a

publisher.

Note: Example Adding a Publisher

Use the -g option to specify the publisher origin URI.

# pkg set-publisher -g http://pkg.example.com/release example.com

Example Specifying the Preferred Publisher

Use the -P option to specify a publisher as the preferred publisher. The specified publisher moves to the

top of the search order. You can specify the -P option when you add a publisher or you can modify an

existing publisher.

# pkg set-publisher -P example.com

Example Enabling or Disabling a Publisher

Use the -d option to disable a publisher. The preferred publisher cannot be disabled. A disabled publisher

is not used in package operations such as list and install. You can modify the properties of a disabled

publishers.

Use the -e option to enable a publisher.

# pkg set-publisher -d example2.com

Correct Answer: B

The user file-creation mode mask (umask) is use to determine the file permission for newly created files. It can be used to control the default file permission for new files. It is a four- digit octal number. You can setup umask in /etc/bashrc or /etc/profile file for all users. By default most Unix distro set it to 0022 (022) or 0002 (002).

1.

The default umask 002 used for normal user. With this mask default directory permissions are 775 and default file permissions are 664.

2.

The default umask for the root user is 022 result into default directory permissions are 755 and default file permissions are 644.

3.

For directories, the base permissions are (rwxrwxrwx) 0777 and for files they are 0666 (rw-rw-rw). In short,

1.

A umask of 022 allows only you to write data, but anyone can read data.

2.

A umask of 077 is good for a completely private system. No other user can read or write your data if umask is set to 077.

3.

A umask of 002 is good when you share data with other users in the same group. Members of your group can create and modify data files; those outside your group can read data file, but cannot modify it. Set your umask to 007 to completely exclude users who are not group members.

Correct Answer: D

Correct Answer: ABE

A: ZFS also allows you to use UFS files as virtual devices in your storage pool. This feature is aimed primarily at testing and enabling simple experimentation, not for production use. The reason is that any use of files relies on the underlying file system for consistency. If you create a ZFS pool backed by files on a UFS file system, then you are implicitly relying on UFS to guarantee correctness and synchronous semantics. However, files can be quite useful when you are first trying out ZFS or experimenting with more complicated layouts when not enough physical devices are present. All files must be specified as complete paths and must be at least 64 Mbytes in size.

B, E: You can construct logical devices for ZFS using volumes presented by software- based volume managers, such as Solaris Volume Manager (SVM) or Veritas Volume Manager (VxVM). However, these configurations are not recommended. While ZFS functions properly on such devices, less-than-optimal performance might be the result.

Correct Answer: CF

C: Here the wildcard character ? is used (Matches any single character).

file1 and file2 will be copied into dir1

F: the two files file1 and file2 are copied into directoy dir1.

Note: cp - copy files and directories

Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY.

Cp has three principal modes of operation. These modes are inferred from the type and count of arguments presented to the program upon invocation.

*

When the program has two arguments of path names to files, the program copies the contents of the first file to the second file, creating the second file if necessary.

*

When the program has one or more arguments of path names of files and following those an argument of a path to a directory, then the program copies each source file to the destination directory, creating any files not already existing.

*

When the program's arguments are the path names to two directories, cp copies all files in the source directory to the destination directory, creating any files or directories needed. This mode of operation requires an additional option flag, typically r, to indicate the recursive copying of directories. If the destination directory already exists, the source is copied into the destination, while a new directory is created if the destination does not exist.

Correct Answer: ADE

A: Snapshots are created by using the zfs snapshot command, which takes as its only argument the name of the snapshot to create.

D: You can list snapshots as follows: # zfs list -t snapshot

E: Snapshots are destroyed by using the zfs destroy command. For example:

# zfs destroy tank/home/ahrens@now

Correct Answer: B

An "f" in the F column indicates the package is frozen. If a package is frozen, you can only install or update

to packages that match the frozen version.

Note: The "i" in the I column indicates that these packages are installed in this image.

Adding and Updating Oracle Solaris 11 Software Packages, Showing Package Install State Information

Correct Answer: A

In the Bourne Again, C, Korn, TC, and Z shells, the tilde (~) is used as a shortcut for specifying your home

directory.

cd It's the command-line equivalent of the back button (takes you to the previous directory you were in).

Note:

To make certain that you are in your home directory, type the cd (change directory) command. This

command moves you to your home (default) directory.