IBM C4040-250 Online Practice Questions and Exam Preparation

IBM C4040-250 Online Questions & Answers

• Question 81:

  A small retailer has a 4-core S814 with one processor license to run the production workload. During the busy holiday season in November and December, the average daily workload is doubled. Which solution will provide the required processing capacity for the busy season?

  A. Purchase an additional processor license.
  B. Implement Elastic Capacity on Demand
  C. Enable Active Memory Expansion
  D. Purchase an additional processor activation
  C. Enable Active Memory Expansion

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  Active Memory Expansion is an innovative POWER7 technology that allows the effective maximum memory capacity to be up to 100% larger than the true physical memory maximum for AIX 6.1 partitions.

  Active Memory Expansion relies on compression of in-memory data to increase the amount of data that can be placed into memory and thus expand the effective memory capacity of a POWER7 system. The in- memory data compression is

  managed by the system, and this compression is transparent to applications and users.

  Active Memory Expansion is configurable on a per-logical partition (LPAR) basis. Thus, Active Memory Expansion can be selectively enabled for one or more LPAR's on a system. When Active Memory Expansion is enabled for a LPAR, the

  operating system will compress a portion of the LPAR's memory and leave the remaining portion of memory uncompressed. This results in memory effectively being broken up into two pools a compressed pool and an uncompressed pool.

  The operating system will dynamically vary the amount of memory that is compressed based on the workload and the configuration of the LPAR. Because Active Memory Expansion relies on memory compression, some additional CPU

  utilization will be consumed when Active Memory Expansion is in-use. The amount of additional CPU utilization needed for Active Memory Expansion will vary based on the workload and the level of memory expansion being used.

  Reference:

  https://www.ibm.com/developerworks/mydeveloperworks/wikis/home/wiki/Power+Systems/pag e/Active +Memory+Expansion+(AME)

• Question 82:

  A customer is considering the purchase of three IBM POWER8 Scale-out systems to run their AIX and IBM i applications. Their main concern is application uptime.

  What feature of the POWER8 Scale-out systems should the IBM reseller discuss?

  A. RAS features eliminate disk and memory failures
  B. Live Partition Mobility
  C. PowerVC
  D. Hot swap memory and cores
  B. Live Partition Mobility

  ---

  Demands for system uptime have consistently risen over the years, and while technology features such as high availability have largely minimized unplanned downtime, servers still have to come down for routine maintenance to keep operations running smoothly. This is one of the key benefits of Live Partition Mobility for IBM i, which allows IT to migrate a partition from one physical machine to another.

• Question 83:

  A customer wants to replace their existing x86 server farm running Domino, Websphere Application Server, file serving, print serving, Cognos and DB2 database. Which Operating System offers an integrated solution to satisfy the customer's requirements?

  A. Red Hat
  B. SUSE
  C. IBM i
  D. AIX
  C. IBM i

  ---

  Explanation: IBM i operating system can support Domino, Websphere, file serving, print serving, Cognos and DB2 database. Since it is an IBM operating system, it can easily run all the required IBM products efficiently.

• Question 84:

  What is an advantage of a P0WER8 system compared to an x86 solution?

  A. Supports PCIe Gen
  B. More cores per socket
  C. Lower PVU cost
  D. Greater memory bandwidth
  B. More cores per socket

  ---

  Systems that are designed with fewer components and interconnects have fewer opportunities to fail. Simple design choices, such as integrating processor cores on a single POWER chip, can reduce the opportunity for system failures. The

  POWER8 chip has more cores per processor module, and the I/O Hub Controller function is integrated in the processor module, which generates a PCIe BUS directly from the processor module. Parts selection also plays a critical role in

  overall system reliability.

  Reference:https://www.google.com.pk/url?

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  2520June.pdfandei=17loVa6GLYHkUISHgcAHandusg=AFQjCNGIgaigZjc7XddWybzRsEyNtcf ncgandsig2=_lmFDqISPoIG2ek-0PWFhgandbvm=bv.94455598,d.d24 (slide 4)

• Question 85:

  A customer purchased a new POWER8 Scale-out server and wants three years of 24 by 7 hardware.

  Which option satisfies this request?

  A. Upgrade from one year 9 by 5 to 24 by 7 and one year to a three year warranty extension.
  B. Upgrade from one year 24 by 7 to three years.
  C. The standard 24 by 7 warranty for three years
  D. Upgrade from standard three years 9 by 5 to 24 by 7.
  D. Upgrade from standard three years 9 by 5 to 24 by 7.

• Question 86:

  A customer states that up time is very critical in their environment. What should the IBM reseller tell the customer?

  A. IBM's high availability solution has instant failover resulting in zero down time.
  B. IBM's POWER8 Enterprise systems offer a fault tolerant solution.
  C. Power Systems are the most reliable non-mainframe systems.
  D. IBM POWER8 technology offers concurrent maintenance on all components.
  B. IBM's POWER8 Enterprise systems offer a fault tolerant solution.

  ---

  Explanation: The reliability of the IBM Power SystemsTM starts with components, devices, and subsystems that are designed to be fault-tolerant. IBM Power Systems uses lower voltage technology in the processor Single Chip Modules (SCMs) that improves reliability stacked latches to reduce soft error (SER) susceptibility. During the design and development process, subsystems go through rigorous verification and integration testing processes. During system manufacturing, systems go through a thorough testing process to help ensure high product quality levels.

  The processor and memory subsystem contain a number of features designed to avoid or correct environmentally induced, single-bit, intermittent failures as well as handle solid faults in components, including selective redundancy to tolerate certain faults without requiring an outage or parts replacement.

• Question 87:

  An existing POWER8 customer with an E870 recently acquired a small company with an x86 Linux server running a scripting Java application. They would like to run that application on their E870, but are concerned about the porting effort. How should the salesperson respond?

  A. Well-written Linux on x86 applications written in scripting Java or most interpretive languages will run as is, with no changes.
  B. IBM Bluemix is a Platform as a Service (PaaS) offering that creates a hybrid OpenStack environment of AIX, IBM i and Linux.
  C. POWER8 systems come with Nvidia coprocessors designed specifically to run most x86 Linux applications in their native modes.
  D. PowerKVM is an open-source virtualization solution designed to run Linux-only applications written in C ++ and Java applications from x86.
  A. Well-written Linux on x86 applications written in scripting Java or most interpretive languages will run as is, with no changes.

  ---

  Explanation: IBM reports that 100 percent of hardware-agnostic Linux on x86 applications written in scripting (e.g., Java) or interpretive languages (e.g., PHP, Phyton, Perl, Ruby, etc.) will run as is with no changes.

• Question 88:

  A customer has 40 Power 520 servers and is concerned about the ongoing operational cost, space, and high availability. Which solution should be discussed in order to satisfy the requirements?

  A. Purchase one S824 with PowerVM and PowerHA.
  B. Purchase two S824 servers with PowerVM and PowerHA
  C. Purchase one E870 with PowerVM and PowerHA.
  D. Purchase four S812L servers with PowerVM and PowerHA
  B. Purchase two S824 servers with PowerVM and PowerHA

  ---

  Reference:http://www.redbooks.ibm.com/redpapers/pdfs/redp5097.pdf (page 19)

• Question 89:

  A department chain IT manager stated that their E870 processing requirements can experience unexpected short peaks throughout the day. They need to automatically activate cores and give them back when the processing requirements decrease.

  Which Capacity on Demand offering will satisfy the customer's requirements?

  A. Capacity Upgrade on Demand
  B. Utility
  C. Trial
  D. Elastic
  B. Utility

  ---

  Utility Capacity on Utility CoD is used when you have unpredictable, short workload spikes. Demand

  Reference: http://www.unixmantra.com/2014/03/power-systems-capacity-on-demand-cod.html

• Question 90:

  Which POWER8 feature is available only on E870 and E880 models?

  A. Enterprise Pools
  B. Concurrent firmware updates
  C. Dual HMCs
  D. Hot Swap PCIe adapters
  D. Hot Swap PCIe adapters

  ---

  Explanation: Each Power E870 or Power E880 system node provides eight half-length, half-high x16 PCIe Gen3 slots. These PCIe slots can be used for either low profile PCIe adapters or for attaching a PCIe I/O drawer.

  A new form factor blind swap cassette (BSC) is used to house the low profile adapters, which go into these slots. All PCIe slots are hot swappable and support concurrent maintenance.

  Reference: http://www.redbooks.ibm.com/redpapers/pdfs/redp5137.pdf