IBM C4040-250 Online Practice Questions and Exam Preparation

IBM C4040-250 Online Questions & Answers

• Question 91:

  A customer wants to use a virtualization technology that has a consistent interface across both the x86 and Power platforms. Which hypervisor for Power Systems will satisfy their requirement?

  A. PowerKVM
  B. PowerVM
  C. HyperV
  D. VMware
  B. PowerVM

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  Explanation: PowerVM is a hypervisor for Power systems that has a consistent interface across x86 and power platforms.

• Question 92:

  PowerVM Enterprise Edition provides which availability function?

  A. High availability failover
  B. Live Application Mobility incase of a system failure
  C. Policy based workload relocation
  D. Live Partition Mobility
  D. Live Partition Mobility

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  The Live Partition Mobility function offered on POWER6 technology-based systems is designed to enable the migration of an entire logical partition from one system to another. Live Partition Mobility uses a simple and automated procedure that transfers the configuration from source to destination without disrupting the hosted applications or the setup of the operating system and applications.

  Live Partition Mobility provides the administrator a greater control over the usage of resources in the data center. It allows a level of reconfiguration that in the past\ was not possible because of complexity or just because of SLAs that do not allow an application to be stopped for an architectural change.

  Reference: http://www.redbooks.ibm.com/redbooks/pdfs/sg247460.pdf

• Question 93:

  A customer has a 6TB database that needs a very high performance solution at the lowest cost. Which system is the more cost effective solution?

  A. The S824 with attached FlashSystem 840.
  B. The S824 with integrated SSDs and V5000.
  C. An E870 with internal disk drives and SSDs.
  D. The S824 with internal disk drives and SSDs with Easy Tier.
  A. The S824 with attached FlashSystem 840.

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  Huge OLTP workloads running on a database server would normally need a large amount of costly system memory (RAM) used for the database System Global Area (SGA) on the host server. The large SGA might help to keep more frequently accessed data and frequently executed SQL statements in the database buffer cache and libraries to avoid high latency I/O requests to the storage subsystem. IBM FlashSystem 840 is a solution for low latency I/O requests and thus helps reduce the size of the SGA. The fast access of data from IBM FlashSystem 840 minimizes the use of costly memory on the host servers for the applications and databases. Reference: http://www.slideshare.net/JuanRebes/ideal-storage-for-ibm-power-systems

• Question 94:

  A customer with AIX and IBM i based applications is considering a move to open source Linux applications on x86 systems. Which benefit should be highlighted for the customer to stay with the Power platform?

  A. The Power Linux system is more powerful and will cost less than the x86 systems, thereby saving costs.
  B. The Power system they are running on can support the existing applications and the new Linux applications at the same time.
  C. The Power system uses Lx86 allowing Linux to run unchanged on Power.
  D. The customer can recompile the AIX and IBM i applications and continue with Linux on their existing Power System.
  C. The Power system uses Lx86 allowing Linux to run unchanged on Power.

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  Explanation: PowerVM Lx86 (Linux only) brings new benefits to customers and application providers who want the reliability and flexibility of Power Systems in their Linux environment, yet use applications that have not yet been ported to the platform. IBM PowerVM Lx86 allows most Linux x86 binaries to run unchanged on POWER systems using translation software that translates x86.

• Question 95:

  In a competitive situation, a customer wants to compare virtualization capabilities of POWER8 systems and x86 systems. Which response describes a competitive advantage of PowerVM compared to VMware?

  A. PowerVM runs in a secure address space while VMware runs in application state
  B. PowerVM can run dual VIO servers to provide higher availability
  C. PowerVMprovide higher system utilization because it is implemented in the processor logic.
  D. PowerVM has the ability to virtualize memory while VMware does not.
  D. PowerVM has the ability to virtualize memory while VMware does not.

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  Recent innovations include Active Memory Sharing, which allows for the exchange of memory between running partitions. This increases optimization of physical resources similar to how CPUs are shared with Shared Processor logical

  partitions. It enables the sharing of a pool of physical memory among the logical partitions. One of the key benefits is that it provides the ability to configure systems with less physical memory. When a system needs more physical memory, it

  can be configured to grab the memory from the shared pool. Basically, this shifts memory dynamically from idle LPARs to active ones. This feature is available on AIX V6.1 and SLES 11. A VIO server must also be deployed for partitions that

  use Active Memory Sharing, and all I/O access needs to be virtualized by using these partitions.

  Reference:

  https://www.ibm.com/developerworks/aix/library/au-aixhpvirtualization/

• Question 96:

  An installed HP Superdome / Oracle database customer is consider migrating to POWER8. The customer has significant financial concerns because of the multiple partitions and high Oracle licensing cost of their HP solution. What features / capability of POWER8 should be discussed with this customer?

  A. Processor pooling and high performance cores
  B. PowerVP and PowerSC
  C. CUoD and CAPI
  D. Shared Storage and Processor roadmap
  D. Shared Storage and Processor roadmap

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  Reference: http://www-05.ibm.com/cz/events/febannouncement2012/pdf/power_architecture.pdf

• Question 97:

  A customer states that they requ.re N_ Port ID Virtualization (NPIV) for storage attachment.

  Which adapter will satisfy their requirement?

  A. 4Gb Fibre Channel adapter
  B. 8Gb Fibre Channel adapter
  C. 40GbE Infiniband adapter
  D. 12Gb Cache RAID SAS quad-port 6Gb adapter
  B. 8Gb Fibre Channel adapter

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  The storage installed for this report was two 4 Gb Fibre Channel storage systems (a Sun ZFS Storage Appliance and a Sun Storage 6180 Array). Reference: http://www.oracle.com/technetwork/server-storage/networking/o11-085-stor-net- cisco-fcoe- 1914006.pdf

• Question 98:

  A customer is running an E870 and is considering running Linux in a partition.

  What should be proposed to the customer to satisfy the requirement?

  A. Red Hat free edition
  B. Integrated Facility for Linux (IFL)
  C. SUSE with KVM
  D. Ubuntu
  C. SUSE with KVM

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  Explanation: See the table at https://www01.ibm.com/support/knowledgecenter/linuxonibm/liaam/liaamdistros.htm

• Question 99:

  What elements of POWER8 technology can be exploited by software developers to optimize performance on an E870?

  A. Active Memory Expansion and storage keys
  B. Hypervisor and Thermal Power Management Device (TPMD)
  C. First Failure Data Capture (FFDC) and Service processor
  D. Transactional memory and SMT
  C. First Failure Data Capture (FFDC) and Service processor

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  Explanation: First Failure Data Capture (FFDC) is a technique that helps ensure that when a fault is detected in a system, the root cause of the fault will be captured without the need to re-create the problem or run any sort of extending tracing or diagnostics program. For the vast majority of faults, a good FFDC design means that the root cause can also be detected automatically without servicer intervention.

  FFDC information, error data analysis, and fault isolation are necessary to implement the advanced serviceability techniques that enable efficient service of the systems and to help determine the failing items. Topic 2, Competition (11%)

• Question 100:

  A POWERS customer with disk expansion drawers needs a non-disruptive solution to improve the disk performance at the lowest cost. What should be proposed to satisfy the customer's requirement?

  A. V7000 SAN Disk
  B. 840 Flash Storage
  C. DS5000 SAN Disk
  D. SSD drives
  A. V7000 SAN Disk

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  Non-disruptive migration from, or virtualization of, existing disk Reference: http://www- 05.ibm.com/cz/events/xtraining2012/prezentace/02_IBM_Storwize_V7000.pdf