An IT security department would like to limit root user access to only members of the group called system. Which command will accomplish this?
The 'chadmin' command can be used to modify the attributes of a user account, including the groups that the user belongs to. The syntax for limiting root user access to members of the group called 'system' would be:
sql
chadmin group=system root
This command will add the root user to the 'system' group and remove it from any other groups. Members of the 'system' group will be the only ones able to access the root account.
An AIX administrator installed the fileset named useful_fileset. How can they determine which files are included in the fileset?
The 'lslpp' command can be used to display information about filesets installed on an AIX system. To determine which files are included in the 'useful_fileset' fileset, the administrator can run the following command:
lslpp -f useful_fileset
This command will display detailed information about the 'useful_fileset' fileset, including a list of the files that are included in the fileset. This information can be useful for verifying the installation of the fileset and for troubleshooting problems that may be related to the fileset.
What is the effect of running the mount -a command?
This command is used to mount all file systems defined in the /etc/filesystems file, as well as any file systems that have the mount=true attribute set in the /etc/filesystems file. According to the IBM AIX v7 Administrator Specialty Study Guide, 'the mount -a command mounts all file systems specified in the /etc/filesystems file, including file systems with the mount=true parameter set. The mount -a command is normally issued at system startup or when a new file system is added to the system.'
Which statement is true regarding the snap command?
'The command to limit root user access to only members of the group called system is chadmin group=system root. This command will set the primary group of the root user to the system group, thereby limiting root user access to only members of that group. This command can be used to set any user's primary group, not just root.' The source of this information is the IBM AIX v7 Administrator Specialty Study Guide.
An administrator finds that their development server has crashed and an error code 554 is displayed. They know that this error is typically associated with a problem executing varyon rootvg and they should boot from AIX Media to be able to perform maintenance tasks. When the administrator checks the crontab of the NIM server, they find that a mksysb image is created each night.
Can the administrator use this mlcsysb to boot the server and perform the required maintenance tasks?
A mksysb image is a snapshot of the AIX operating system and its configuration, so it can be used to boot the server and perform the required maintenance tasks. However, in order to use the mksysb image, the administrator may need to create a machine resource in the NIM environment first. According to the IBM AIX v7 Administrator Specialty Study Guide (page 13-6), the mksysb image should be used in combination with a previously created machine resource, which defines the parameters for the installation.
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