IBM S1000-007 IBM AIX v7 Administrator Specialty Exam Practice Test

Thevtmenucommand in an HMC SSH session is used to display a menu of all managed systems and their LPARs. This menu provides options to open virtual terminal sessions to these LPARs, making it easy for administrators to monitor the boot process and manage their AIX partitions. Other commands likemkvtermopen a console for a specific partition, butvtmenuis designed to list all and provide an interface for selection.References: IBM HMC Documentation

The cfgmgr command updates the system configuration database with the current configuration of the devices attached to the system. When the SAN administrator increases the size of a LUN device (hdisk), it is not automatically reflected on the AIX LPAR. Running the cfgmgr command updates the system with the new size information and makes it visible to the system administrator.

The command used to monitor SAN I/O performance/throughput is iostat -DIRT 60 10. The iostat command is used to monitor I/O performance and throughput on a SAN device. The DIRT (Disk I/O Response Time) flag can be used to display the response time for each I/O request. The last two arguments, 60 and 10, are the interval (in seconds) and the number of iterations respectively. This command will monitor I/O performance/throughput every 60 seconds for 10 iterations.

Themlcvtermcommand is used to open a console to an AIX virtual machine that is controlled by a Hardware Management Console (HMC). According to the IBM AIX v7 Administrator Specialty Study Guide, themlcvtermcommand allows you to open a terminal window to the console of a logical partition (LPAR) running AIX.

When an administrator encounters a "failure replaying log" error duringfsck, it indicates that the log device associated with the file system is corrupted. The next step is to format the log device using thelogformcommand. Runninglogform /dev/ulv11will reinitialize the log device, clearing any corruption and allowingfsckto proceed without errors. This process effectively resets the log, which is necessary for file system recovery.References: IBM AIX Documentation – logform

In AIX, console log messages are recorded using thealogcommand. Thealogutility manages log files, including the console log, which captures system messages and output sent to the console. This utility provides a means to view and manage these logs for diagnostic and auditing purposes.References: IBM AIX Documentation – alog

CPU Entitlement is a setting in the LPAR profile that defines the amount of guaranteed CPU time allocated to an LPAR. This setting is important for workloads that require a steady level of performance, as it guarantees that the LPAR will always have access to a certain percentage of the processing power on the managed system. Reference: IBM AIX v7 Administrator Specialty Study Guide.

CPU Entitlement in AIX refers to the guaranteed amount of CPU time that is allocated to a logical partition (LPAR). It ensures that the LPAR receives a specific share of the processor resources, regardless of the load on the system. This setting is crucial for ensuring that critical applications have the necessary CPU resources to perform optimally. It is different from the total number of virtual CPUs configured, as it represents a minimum guarantee rather than the maximum potential CPU usage.References: IBM AIX Documentation - CPU Entitlement

This code indicates that the rootvg will not varyon, and performing a maintenance boot allows the administrator to diagnose the issue and fix it. From the IBM AIX v7 Administrator Specialty Study Guide: "When the system is halted with a reference code 551, the rootvg will not varyon and the system will not boot. The administrator must perform a maintenance mode boot to diagnose the problem."

The two additional commands that an AIX V7.2 administrator should run after mirroring the rootvg with the mirrorvg command are 'bosboot' and 'bootlist'. The bosboot command is used to update the boot image on all disks in the volume group, and the bootlist command is used to set the boot order for the system. These commands are available on IBM AIX v7 systems and are documented in the IBM AIX v7 Administrator Specialty Study Guide. For more information, please see the IBM documentation at https://www.ibm.com/support/knowledgecenter/ssw_aix_72/com.ibm.aix.cmds3/bosboot.htm  and https://www.ibm.com/support/knowledgecenter/ssw_aix_72/com.ibm.aix.cmds3/bootlist.htm.

The IBM AIX Toolbox for Linux Applications provides a collection of open-source software packages that can be installed on AIX systems. However, IBM does not offer standard or extended support for these open-source packages. The software is provided as-is, meaning that users can utilize the software but are responsible for managing and troubleshooting it without official support from IBM.References: IBM AIX Toolbox for Linux Applications

In the/etc/exportsfile, the absence of specific permissions next to the/tmpdirectory implies that it is exported with the default read-write permissions. The/datadirectory has-rospecified, indicating read-only permissions, and/usr/manhas-root=client1, giving root access toclient1with default read-write permissions. Since no special permissions are indicated for/tmp, it retains the default read-write permissions.References: IBM AIX NFS Documentation

The mkps command creates a paging space and activates it when the system is rebooted. This is explained in the IBM AIX v7 Administrator Specialty Study Guide, under the topic "Creating and Activating a Paging Space".

"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.

In AIX, when creating a new user account without specifying a group, the default group assigned isstaff. This is a predefined group in AIX systems that is typically used for regular user accounts. It provides basic permissions and access suitable for non-administrative users.References: IBM AIX Documentation - User Management

If a session hangs after entering the password, it is most likely due to problems with the authentication mechanism. This could be due to issues with the configuration of authentication services, network delays in authentication if using network-based authentication (such as LDAP), or misconfigurations in the PAM (Pluggable Authentication Module) settings. The other options, such as thepasswddaemon, full file systems, or network failures, are less likely to cause a login hang at this stage.References:= IBM AIX Documentation

Yes, the administrator can use themksysbimage to boot the server and perform the required maintenance tasks, but they may need to create a SPOT (Shared Product Object Tree) first. A SPOT is required in the Network Installation Manager (NIM) environment to boot a client machine from amksysbimage. The SPOT provides the necessary resources, such as the boot image and other files needed for network boot and system maintenance.References:= IBM AIX NIM mksysb Backup and Recovery Documentation

Thealogcommand is used to view the AIX boot log. This command accesses the boot log file, which contains messages and information about the boot process. The boot log helps administrators troubleshoot and understand the sequence of events during system startup.References:= IBM AIX alog Command Documentation

Theprintqaccount is associated with printing capabilities in AIX. If the new system does not require any printing capabilities, theprintqaccount can be safely removed from the system.References:= IBM AIX User Account Management Documentation

An EtherChannel network device provides network redundancy and load balancing by combining multiple physical network adapters into a single logical interface. If one adapter fails, traffic will automatically flow through the other available adapters in the channel, ensuring continuous network availability.References:= IBM AIX EtherChannel Documentation

The commandprtconfprovides detailed information about the configuration of a running partition, including the configured devices. This command outputs the current state of the system, making it useful for administrators to retrieve configuration details.References:= IBM AIX prtconf Command Documentation

Theimportvgcommand in AIX reads the Volume Group Descriptor Area (VGDA) and the Physical Volume ID (PVID) of the disks to identify and import volume group members. The VGDA contains metadata about the volume group, including information about logical volumes and physical volumes. The PVID is a unique identifier assigned to each physical volume, helping the system recognize and manage the disks within a volume group. The other elements, such as LVID, UUID, and UDID, are not used by theimportvgcommand for this purpose.References:= IBM AIX Documentation

The error message indicating a refused connection operation suggests that thenimshsubsystem on the NIM client may not be active. The administrator should check the status of thenimshsubsystem and start it if necessary. This ensures that the NIM master can communicate with the client to perform software updates. The other options do not directly address the issue related to thenimshconnection.References:= IBM AIX Documentation

Thelsfscommand in AIX gets its information from the/etc/filesystemsfile. This file contains definitions of all file systems and their attributes, including mount points, device names, and mount options. Thelsfscommand reads this information to display details about the file systems on the system.References:= IBM AIX Documentation

To make the paging spacepaging00active after the next reboot, thechpscommand is used. Thechps -a y paging00command will set the paging space to be automatically activated at boot time. This ensures that the paging space will be available and active after the system reboots.References:= IBM AIX Documentation

Based on the output provided, the problem is that the/etc/netsvc.conffile has the wrong permissions. The/etc/netsvc.conffile is used to specify the order in which different name resolution services are used. If this file has incorrect permissions, non-root user processes may not be able to access it, leading to name resolution issues.References:= IBM AIX Documentation

When a file system corruption error is reported in the system error log, the appropriate action is to check the error log for specific details, unmount the affected file system, and run thefsck(file system check) command. This command checks and repairs inconsistencies and errors in the file system, which can help resolve the corruption issue. It is essential to unmount the file system before runningfsckto avoid further data corruption.References:= IBM AIX Documentation

In AIX, theinstallpcommand is used for installing software packages, including RPM packages. If therpmcommand is not installed,installpcan be used to install the RPM Package Manager, allowing the user to manage RPM packages thereafter. The other options, such asinstfix,yum, andrpm, either serve different purposes or cannot be used ifrpmitself is missing.References:= IBM AIX Documentation