C Examcollection.Premium.Exam.52q

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1 C Examcollection.Premium.Exam.52q Number: C Passing Score: 800 Time Limit: 120 min File Version: Exam Code: C Exam Name: Power Systems Enterprise Technical Support for AIX and Linux -v2

2 Certkiller QUESTION 1 Which power reduction technology requires a software component in order to be activated? A. Power capping B. Processor folding C. Static power saving D. Processor core nap mode /Reference: QUESTION 2 Which of the following commands will enable the SEA accounting? A. chacct -dev ent14 -attr enable B. optimizenet -set accounting=enabled C. chsea -dev ent14 -attr accounting=enable D. chdev -dev ent14 -attr accounting=enabled /Reference: QUESTION 3 A company which sells books and DVDs runs their business on AIX Enterprise Edition on a Power 795. They have LPARs running back-office applications and other LPARs supporting their Internet based retail operations. They are considering a policy of switching between TurboCore mode and MaxCore mode, depending on workload. Which of the following considerations will have the most impact on the customer's business? A. The managed system will need to be restarted to change modes. B. There will be fewer cores available when using TurboCore mode. C. There will be less L3 cache available per core when using MaxCore mode. D. The applications running on the affected LPARs must support MaxCore and TurboCore modes. /Reference: QUESTION 4 An administrator attempts to migrate a running LPAR using the 'migrlpar' command. :

3 What task will help the administrator determine the cause of the errors? A. Validate the configured attributes on the Properties tab of the LPAR profile. B. Validate that the VIO servers have the Mover Service Partition (MSP) attribute set. C. Validate that the required CPU entitlements are available on the destination server. D. Validate that the Logical Memory Block (LMB) size is consistent between both source and destination. /Reference: QUESTION 5 All Power 795 system racks must have door assemblies installed. Three distinct door styles are available. One of the options - the acoustical door kit - reduces the noise emissions from the system. What attributes are improved by the other 2 door styles? A. Weight, height B. Depth, security C. Depth, temperature D. Height, temperature Correct Answer: C /Reference: QUESTION 6 Which was the first release of IBM i to support Multipath I/O (MPIO) at the client LPAR level, when the same storage is served from redundant VIO Servers? A B C D

4 /Reference: QUESTION 7 A customer is upgrading a Power 595 to a Power 795 and wants to know the estimated power usage of the upgraded system. What is the most comprehensive source for this information? A. Facts and Features B. Workload Estimator C. System Energy Estimator D. Server Specification Sheets Correct Answer: C /Reference: QUESTION 8 A customer is planning 17 LPARs on a Power 795. All LPARs will run AIX 6.1 and use dedicated cores. The other 13 LPARs each have 4 cores and 12 GB RAM What is the minimum number and type(s) of AIX licenses required? A. AIX Enterprise Edition licenses for 96 cores B. AIX Express Edition licenses for 56 cores, and AIX Standard Edition licenses for 40 cores C. AIX Standard Edition licenses for 79 cores, and AIX Enterprise Edition licenses for 17 cores D. AIX Express Edition licenses for 52 cores, AIX Standard Edition licenses for 27 cores, and AIX Enterprise Edition licenses for 17 cores. /Reference: QUESTION 9 Which of the following features is unique to traditional Capacity on Demand servers when compared to Capacity Back Up servers? A. Capacity Upgrade on Demand: the ability to permanently activate inactive cores. B. Processor Sparing: the replacement of cores reporting certain errors with inactive cores. C. On/Off Capacity on Demand: the ability to turn a certain number of cores on for a temporary period. D. Utility Capacity on Demand: the ability to have the system automatically determine how many additional

5 temporary core resources to activate. /Reference: QUESTION 10 A system administrator is installing a third-party monitoring agent on a security-hardened VIO server. The installation of the agent completes without errors, initializes, and network routing is correct, but the monitoring server cannot communicate with the agent installed on the VIO server. What action is necessary to fix this situation? A. Open appropriate ports in the firewalls for the monitoring server. B. Register the monitoring agent in the inetd.conf and run 'startnetsvc'. C. Add the monitoring server to the known_hosts and authorized_keys2 files. D. Ensure that the monitoring agent is installed as a user with the PAdmin role. /Reference: QUESTION 11 An administrator configured IVE in their Power 570 with a multicore scaling (MCS) value of 8. After some time they decided to add more LPARs to the system. To allow more logical ports for the new LPARs, the administrator changed the MCS value in the HMC to 4. When configuring the new LPAR profiles, the administrator does not see the extra ports. Which of the following is the most likely reason? A. Decreasing the MCS value reduces the number of ports available. B. Changing MCS value requires the managed system to undergo a power cycle C. The VIO server must have the "cfgdev" command run to discover the new ports. D. The Host Ethernet configuration (available ports) must be changed to match the IVE configuration. /Reference: QUESTION 12 An administrator has been asked to configure all HMCs to log messages to the company wide syslog server. What is the supported method to accomplish this? A. Use pesh / root access. B. Use chhmc -c syslog command. C. Use rmtlog -event.syslog command. D. Use the Manage Connection Monitoring panel in the HMC. E. Use the Manage Serviceable Event Notification panel in the HMC.

6 /Reference: QUESTION 13 Which of the following statements regarding the Power Hypervisor is true? A. The Hypervisor will consume approximately 0.05% of a core for each LPAR. B. The consumption of the Hypervisor is included in the published rperf figures. C. The Flexible Service Processor (FSP) is automatically allocated to run the Hypervisor. D. The Hypervisor allocates between 5% and 10 % of the number of core entitlements used by the partitions. /Reference: QUESTION 14 Which component is mandatory in LPAR migration? A. WPM - WPAR Manager B. PLM - Partition Load Manager C. ewlm - Enterprise Workload Manager D. RMC - Resource Monitoring and Control /Reference: QUESTION 15 A customer is ordering 10 Power 795 servers. Each system will be configured with 256 cores and 1TB RAM. Two hundred LPARs will be created on each system. Redundant HMCs are a mandatory requirement for the customer. What is the minimum number of HMCs necessary to support the customer requirement? A. 2 B. 4 C. 6 D. 8 /Reference: QUESTION 16 A system administrator must create a mksysb image from one LPAR, and then install many other LPARs with that image.

7 When the administrator attempts to load the mksysb into the second of the virtual optical devices, the following error is displayed: The specified virtual disk is not read-only, and cannot be loaded into multiple devices simultaneously. What command will allow the administrator to resolve this error, and proceed as planned? A. chmod B. chrep C. chdev D. chvopt /Reference: QUESTION 17 A system administrator is adding storage to an AIX 6.1 LPAR that is a virtual SCSI client of a VIO Server LPAR. On the VIO Server, the administrator creates the new virtual target device on the existing virtual SCSI host adapter for the client LPAR, but is presented with a warning that the client LPAR must be rebooted in order to see the new virtual device. Which of the following is the most likely the cause for this warning? A. The number of physical partitions for the new device is too large. B. The maximum queue depth for the vscsi client adapter has been exceeded. C. The memory available for the existing vscsi host adapter has been exhausted. D. The maximum transfer size of the new device is greater than the existing devices. /Reference: QUESTION 18 An administrator has a request to populate a new IBM Power 750 with 50 LPARs. A redundant pair of VIO Servers has been installed and is online. Which option provides the most efficient method for creating new LPARs? A. mksyscfg using the HMC command line B. mklparcfg using the HMC command line C. 'Deploy System Profiles' panel using the HMC web interface D. 'Create Logical Partition' panel using the HMC web interface

8 /Reference: QUESTION 19 A customer is considering consolidating multiple stand-alone systems on to a single Power 795. The systems to be consolidated run AIX 5.3, AIX 6.1 and AIX 7.1. What is the maximum number of cores which may be allocated to LPARs at each level of AIX? A. AIX AIX AIX B. AIX AIX AIX C. AIX AIX AIX D. AIX AIX AIX /Reference: QUESTION 20 An architect is preparing to deploy a three-tier application on a new Power 795 system that has 64 activated cores. The solution is licensed by the number of cores used by the application server LPARs. The same number of cores may be used, without charge, for the database manager. There is no limitation on the number of cores used by the web server LPARs. The company has purchased a license allowing the use 32 cores of the Power 795 system for the application server LPARs. Which of the following Shared Processor Pool configurations supports these requirements? A. Change SharedPool01 to set Reserved Processing Units = 32 and Maximum Processing Units = 64.Change SharedPool02 to set Reserved Processing Units = 0 and Maximum Processing Units = 64 B. Change SharedPool01 to set Reserved Processing Units = 0 and Maximum Processing Units = 32.Change SharedPool02 to set Reserved Processing Units = 0 and Maximum Processing Units = 32. C. Change SharedPool01 to set Reserved Processing Units = 32 and Maximum Processing Units = 32.Change SharedPool02 to set Reserved Processing Units = 32 and Maximum Processing Units = 64 D. Change SharedPool01 to set Reserved Processing Units = 32 and Maximum Processing Units = 32.Change SharedPool02 to set Reserved Processing Units = 0 and Maximum Processing Units = 32. /Reference: QUESTION 21 A customer plans to use Live Partition Mobility (LPM) to move an LPAR running AIX 7 from a Power 770 to a POWER6 570.In which CPU preferred compatibility mode should the LPAR be before migration begins? A. Auto B. POWER6 C. Default D. POWER6 enhanced

9 /Reference: QUESTION 22 A client has been using Live Partition Mobility to move partitions between existing POWER6 frames. They have recently deployed a number of POWER7 frames managed by new HMCs and would like to take advantage of Remote Live Partition Mobility to move partitions between the frames. After verifying network connectivity between HMCs, what is the next step to enable Remote Live Partition Mobility? A. Configure an RMC connection between them B. Configure SSH authentication between them C. Import the Kerberos host principals for each HMC to authenticate using a KDC D. Test RMC connections from the source HMC to the destination mover service partition /Reference: QUESTION 23 Customer wants to consolidate POWER4, POWER5 and POWER6 systems on to a POWER7 server. What resource will indicate an appropriate POWER7 server? A. Power Systems Performance Report B. Power System Consolidation Handbook C. Power Systems Hardware Information Center D. Power Systems Hardware Server Specification sheet /Reference: QUESTION 24 A customer is concerned with software licensing costs and maximizing throughput per core on the system. Which of the following system configurations supports these requirements? A. A Power 770 configured for MaxCore Mode B. A Power 780 configured for MaxCore Mode C. A Power 770 configured for TurboCore Mode D. A Power 780 configured for TurboCore Mode /Reference: QUESTION 25

10 A customer is ordering new Power 780 and 795 hardware. Within their data center, existing HMCs already manage POWER5 and POWER6 deployments. These existing HMCs are either 7310-CR2, 7042-CR4 or CR5 models. What must be considered with regard to the management of POWER7 hardware? A. Only their 7042-CR5 HMCs can run the minimum required Version 7 Revision 720 HMC code. B. All their existing HMCs will need to be upgraded to at least Version 7 Revision 720 HMC code. C. Only their 7042-CR4 and 7042-CR5 can run the minimum required Version 7 Revision 720 HMC code. D CR6 is the only supported rack-mounted HMC which can run Version 7 Revision 720 and later HMC code. Correct Answer: C /Reference: QUESTION 26 How can a system administrator determine if an existing LPAR is correctly configured for Live Partition Mobility? A. Use the "migrlpar" command on the HMC with "-o v" option. B. Use the "lslparmig" command on the HMC with the "-r lpar -t" option. C. Activate an LPAR on the target system using the same LUNs and network. D. Create a sysplan on the source system and deploy it on the target system. /Reference: QUESTION 27 Which of the following is the correct method to rename hdisk11 to testdisk1? A. rendev -l hdisk11 -n testdisk1 B. mv /dev/hdisk11 /dev/testdisk1 C. chdsk -dev hdisk11 -id testdisk1 D. chdev -l hdisk11 -a name=testdisk1 /Reference: QUESTION 28 An administrator has configured a system to provide resilient networking through the use of SEA failover. The administrator wants to know if the SEA for one VIO server, ent10, is the active adapter. Which of the following commands could the administrator use to determine the status of ent10? A. entstat -net ent10 B. lsmap -net -dev ent10 C. seastat -liststat ent10

11 D. netstat -cdlistats ent10 Correct Answer: C /Reference: QUESTION 29 Which of the following supports Active Memory Sharing (AMS)? A. POWER6, AIX 7.1 and PowerVM Basic Edition B. POWER7, AIX 7.1 and PowerVM Express Edition C. POWER7, AIX 6.1 and PowerVM Standard Edition D. POWER6, AIX 6.1 and PowerVM Enterprise Edition /Reference: QUESTION 30 Where can Power Saving mode on a Power 770 be enabled? A. HMC and ASMI B. ASMI and Operator Panel C. Intelligent PDU and HMC D. Operator Panel and Operating System. /Reference: QUESTION 31 An administrator must add support for a new VLAN to a VIO Server that currently services multiple VLANs on a single SEA. No additional network ports are available. How can this be achieved without interrupting the SEA? A. Use DLPAR to add a new virtual ethernet adapter to the VIO Server. Use the chdev command to add the new virtual adapter to the SEA. B. Use DLPAR to add a new virtual ethernet adapter to the VIO Server. Use the chgsea command to add the new virtual adapter to the SEA. C. Use DLPAR to enable 802.1Q and add the VLAN to the virtual ethernet adapter. Use the chdev command to add the new virtual adapter to the SEA. D. Use DLPAR to enable 802.1Q and add the VLAN to the virtual ethernet adapter. Use the chgsea command to add the new virtual adapter to the SEA.

12 /Reference: QUESTION 32 A system administrator has a Power 770 with 12 cores. The following LPARs already exist: LPAR1-9 dedicated cores LPAR2-1 virtual processors with an entitled capacity of 0.2 LPAR3-1 virtual processors with an entitled capacity of 0.8 The administrator wants to create a fourth LPAR. What is the maximum entitled capacity and virtual processors which can be allocated? A. 1 virtual processor with an entitled capacity of 2.0 B. 2 virtual processors with an entitled capacity of 2.0 C. 1 virtual processor with an entitled capacity of D. 20 virtual processors with an entitled capacity of 2.0. E. 12 virtual processors with an entitled capacity of 2.0. F. 20 virtual processors with an entitled capacity of /Reference: QUESTION 33 What is a prerequisite for Live Partition Mobility? A. Source and destination hardware must be the same model/type. B. All network and storage resources of the LPAR must be virtual. C. Only a single shared-processor pool may exist on the source and destination hardware. D. An LPAR with the same name must be present on the destination server prior to the move. /Reference: QUESTION 34 An administrator installed a new HMC and connected several managed systems to it. According to company policy the open network, used for user access to HMC, should be firewalled. Which service must be permitted through the firewall to enable DLPAR operations? A. SSH B. DNS C. RMC D. LDAP Correct Answer: C

13 /Reference: QUESTION 35 A customer uses NIM for OS and software deployment on 64 LPARs divided into three groups: development, test and production. What is the quickest way to install fixes on the test servers only? A. Create an install script that lists only the test serversdefine this as a 'script' NIM resourceperform a 'maint' operation using the created resource. B. Create a new lpp_source containing the required fixescreate a mac_group NIM resource containing the test machinesperform an 'update_all' operation across the created group. C. Create a new lpp_source containing the required fixescreate a mac_group NIM resource and populate with only the test serversperform a 'maint' operation across the created group. D. Update corresponding lpp and spot resources on the NIM mastercreate a res_group NIM resource and populate with only the test serversperform an 'update_all' operation across that created group. /Reference: QUESTION 36 A VIO Server is installed on the mirrored disks hdisk0 and hdisk1. During an update the VIO Server crashed. After rebooting, the administrator detects that hdisk1 is broken. The administrator decided to restore a previously made backup from the NIM server, and removed the damaged hdisk1.what step is required to restore the VIO Server on only hdisk0 from the NIM Server? A. The VIO Server must be installed with a modified image.data resource. B. Run the nim command on the mksysb resource using the mirror=no option. C. The VIO Server must be installed with a modified bosinst.data resource. D. During the startup procedure the admin has to set the 'Shrink File Systems' option to 'yes'. /Reference: QUESTION 37 An administrator updated tunable virtual memory parameters using vmo -p. When the system was rebooted the tuning was lost. Which of the following is the most likely reason? A. The /etc/objrepos/nextboot file was removed. B. Only non-restricted tunables can be changed permanently. C. The bosboot command must be run to make changes permanent. D. The tunables entry is missing or is incorrectly defined in the /etc/inittab file. /Reference:

14 QUESTION 38 An administrator created a JFS2 snapshot and mounted it using the following commands: Snapshot-o snapfrom=/home/adminfh-o size=1g Mount-o snapshot /dev/fslv16 /backup Backup was started using a script. After an hour the administrator lists the backup directory and received the following error message: Is: /backup: There is an input or output error. What is the most likely reason? A. The snapshot ran out of space and is now invalid. B. Backup directories are locked during snapshot operations. C. The incorrect command was used to list the backup directory. D. Filesystem write operations were improperly suspended prior to taking the snapshot. /Reference: QUESTION 39 SMT4 (Simultaneous Multithreading using four threads) is a new feature in Power 795 hardware. Which minimum releases of AIX and IBM i can exploit this feature? A. AIX 7.1 and IBM i 7.1 B. AIX 7.1 and IBM i C. AIX 6.1 TL6 and IBM i D. AIX 6.1 TL6 and IBM i Correct Answer: C /Reference: QUESTION 40 A company wide time server has been established and the AIX administrator has been asked to configure all HMCs to connect to this time server. Which of the following statements is correct? A. Time server configuration can be changed using vi /etc/ntp.conf B. Time server configuration can be changed using chhmc -c xntp command. C. Time server configuration requires a pesh password obtained from IBM Service. D. Time server configuration requires Systems Director with the VMControl plugin.

15 /Reference: QUESTION 41 The root user in an LPAR has the ability to remotely execute CLI commands on an HMC without being prompted for a password. That capability must be removed in order to comply with security rules. Which of the following commands describes the supported method to delete unneeded key from the authorized_keys2 file? A. delkey B. chkeys C. chhmcuser D. mkauthkeys E. rmauthkeys /Reference: QUESTION 42 What will be the operational impact of hosting a Power 795 at an altitude in excess of 2134 meters (7000 feet)? A. Additional humidifiers will be required; the altitude will result in a 2% decrease in relative humidity. B. Additional site inspection by the Installation Planning Representative is required before the system ships. C. Additional electrical power is used by the hardware; the altitude will result in a 3% increase in Kw rating. D. Additional cooling will be required; the maximum operating temperature decreases 2 degrees C per 305 meters (1000 feet). /Reference: QUESTION 43 A customer application deployment consists of two LPARs hosted on the same physical system; one hosting a back-end database, the other hosting a customer-facing web application. Since the hardware was ordered, the application design was updated to list a requirement of a dedicated network link between the two LPARs. Which option would meet the networking requirements while minimizing expenses? A. Purchase two new Ethernet adapters, assign one to each LPAR and connect them with a cross-over cable. B. Purchase a second IVE adapter and assign a logical port to each LPAR. Connect the ports using a standard Ethernet cable. C. Install VIO server and make a Shared Ethernet Adapter, assign this to both LPARs. No new physical cabling will be required. D. Create two Virtual Ethernet adapters within a dedicated VLAN, assign one to each LPAR. No new physical cabling will be required.

16 /Reference: QUESTION 44 A customer is trying to configure a Shared Ethernet Adapter on a Logical Host Ethernet port using the following command: mkvdev -sea ent0 -vadapter ent2 -default ent2 -defaultid 1 The following response is received: error initializing a device into the kernel Which of the following is the most likely cause for this problem? A. The VIOS partition needs more memory B. SEA cannot use the default VLAN id of 1 C. The SEA can only be created on a physical network adapter D. Promiscuous mode on the virtual Ethernet adapter must set to "on" E. On VIO server's profile the virtual adapter has the "Access External Networks" box checked. /Reference: QUESTION 45 An administrator is trying to configure NPIV on a new VIO Server partition. When running the Isnports command the following is displayed:

17 Which of the following statements correctly summarizes this situation? A. The adapter is not NPIV compliant. B. The adapter is not connected to an NPIV-capable switch. C. The adapter is not set to an NPIV-capable class of service. D. The adapter firmware level is not at an NPIV-supported version. /Reference: QUESTION 46 A customer implemented a PowerHA System Mirror cluster for their database. The cluster is used simultaneously by many clients during work hours. For the non-ip heartbeat network, they decided to use the same LUN as for the data files. Which problem can arise during normal use of the cluster? A. High application access can cause the deadman switch to be triggered. B. The cluster will not start, because it needs a separate LUN for non-ip heartbeat. C. A reservation conflict can arise between the heartbeat function and normal data access. D. A lock from one node in the cluster can prevent other nodes reporting heartbeat functions.

18 /Reference: QUESTION 47 A customer performed a mksysb backup of VIO client LPAR to a SAN-attached tape drive. How can this mksysb be restored back to an LPAR? A. Restore using nimadm from the SAN-attached tape. B. Restore the mksysb to the partition using TSM from the SAN-attached tape. C. Create a mksysb NIM resource using the tape drive as source and restore using that resource. D. Copy the mksysb to a file on a NIM server and restore using a resource created from that file. /Reference: QUESTION 48 Which of the following is required by Live Application Mobility? A. WPAR Manager (Workload Partition Manager) B. The same Hypervisor level on source and destination C. PowerVM Enterprise Edition on source and destination D. Source and target WPARs with identical configurations /Reference: QUESTION 49 An administrator is evaluating consolidating Power servers running relational database management systems (RDBMS). After reviewing the collection of nmon andtopas data for the candidate systems, the administrator is concerned by the total amount of RAM that the consolidation seems to require, based on the RAM allocated to each candidate system. The administrator reviews the memory sections of thetopas data to see if reducing total RAM required is possible. None of the systems indicate any activity to the paging spaces. Which of the following metrics would help the administrator determine the minimum RAM required to host the RDBMS partitions in the consolidated environment? A. Free pages B. Persistent pages C. Computational pages D. Real pages-free pages E. Computational pages + persistent pages Correct Answer: C

19 /Reference: QUESTION 50 A system administrator wants to use topasrec to collect processor performance data for all AIX LPARs on one Power 795. Seven days of data will be collected, with one data file created per day. Which of the following recording approaches supports the requirement? A. Continuous CEC monitoring on one LPAR B. Persistent CEC monitoring on one LPAR C. Continuous local monitoring on each LPAR D. Persistent local monitoring on each LPAR /Reference: QUESTION 51 Which of these HMC commands will display fixes which have been applied to the HMC? A. Ishmc-f B. Ishmc-F C. Ishmc-V D. Ishmc-I Correct Answer: C /Reference: QUESTION 52 A system administrator is updating the VIO Server levels in a frame supported by a dual VIO Server pair. After applying the latest fixpack to the first VIO Server and rebooting the administrator notices some of the VIO Server clients have failed paths to the storage as reported by Ispath After confirming the upgraded VIO Server is presenting all disks without any errors what is the most likely cause of the failed paths? A. The vscsi_priority is set to 0. B. The hcheckjnterval is set to 0. C. The two VIO Servers are running mixed levels. D. Disk reservations were added during the upgrade. /Reference:

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