C9010-251 Online Practice Questions and Answers

A customer needs a new server for their database currently running on a 16-core POWER7 4.1 GHz based server. Oracle has informed the customer that their SPARC T5 based servers are best suited for running databases, because the SPARC T5 has eight threads per core, while the current servers only allow for up to four threads per core.

Which of the following statements could be correctly used to repudiate the Oracle claim?

A. Databases are mostly single-threaded workloads. Scale-out POWERS servers have higher clock speeds and can scale to more cores than SPARC T5 servers.

B. Oracle T5 Servers are engineered to run Oracle workloads faster. Non-Oracle workloads will run slower on their hardware due to the amount of threads.

C. More threads will implicate more licensing for the database software. Less threaded processors provide a better TCO by reducing the licensing.

D. The number of threads cannot guarantee better performance. Servers based on POWERS have better per core performance in benchmarks when compared to SPARC T5 based servers.

A customer is setting up two new partitions where IBM i is hosting the storage. The customer's high priority is to complete the backups to physical tape as fast as possible, while automating the movement of the single tape library between the partitions Tape library functions are needed for the backup.

Which combination of storage virtualization will achieve the customer's backup priority''

A. One very large virtual disk unit sized to fit the partition with a virtual iSCSI interface to the tape library.

B. Virtual disk units sized to provide 10 disk units, with the tape and DVD virtualized by IBM i.

C. Larger virtual disk units and a SAS adapter on each partition, with dual SAS adapter on the tape library.

D. At least six virtual disk units with the tape drive virtualized with VIO Server and NPIV

What feature of IBM i prevents editing object code?

A. Single level storage

B. Integrated antivirus

C. Authorization lists

D. Object-Oriented Architecture

A customer has a partitioned system running IBM i and Domino. The customer is considering a new system to replace the existing system and wants to add a Web Sphere application and an AIX application.

Which of the following will assist in sizing the new system?

A. Performance Management (PM) for Power Systems

B. Workload Estimator (WLE)

C. Snap Shot

D. System Planning Tool (SPT)

A customer needs faster response time from their database server and is considering purchasing POWERS. They are familiar with Easy Tier, and have heard that they can use it locally on some servers.

Which feature(s) would enable this function?

A. Enhanced backplane (EJOP)

B. Standard backplane (EJON)

C. Enhanced backplane (EJOP) with the Split backplane feature (EJOS)

D. Standard backplane (EJON) with optional SSD cage (EJTM)

A customer wants to be able to automatically failover their Power System nodes that are running AIX in the event of a disaster. The customer will place the servers in No data centers that are in different geographies

Which IBM product will satisfy the customer's requirement?

A. IBM Metro Mirror

B. Power HA System Mirror for AIX Enterprise Edition

C. Geographic Logical Volume Manager

D. General Parallel File System (GPFS)

A customer interest in the PostgreSQL server workloads to Power8 , but more concerned about the cost . Compared with x86 servers , which system of pricing the most competitive ?

A. S822

B. S814

C. S824L

D. S812L

A customer is migrating from POWER7 to POWER8 systems. In their new VIO Server environment, they want the storage multipathing to take place in client LPAR.

What should be customer use in order to satisfy their requirement?

A. NFS

B. NPIV

C. iSCSI

D. vSCSI

A customer will purchase an SB24 server to replace a Power 520 with IBM I V5R4. Middleware integration and securing business critical data is important to the customer.

What will allow the customer to support all of the requirements?

A. Trusted Firewall and Trusted Surveyor

B. DB2 Row and Column Access Control

C. PowerSC

D. Tivoli Directory Server

A customer has a Power 740 with 16 cores and 64GB RAM, running an Oracle database. The server is attached to an EXP24S with 20 disks 300GB 10K RPM and has been experiencing performance issues. After an analysis there were some findings:

Average CPU usage for the database is 30%

Average Memory usage is 60%

High I/O waits are being experienced, around 50% of total CPU

An Oracle sales representative ran a POC of an Exadata X4-2 Half Rack to help with the performance

issues.

The performance on Exadata was better than the existing solution, so the customer called IBM,

considering a migration to a new Oracle solution.

Which response is appropriate to defend the IBM solution?

A. Exadata X4-2 Half Rack has four servers with two sockets each. It should be compared with the performance of a POWER 770 which can also scale up to eight sockets. IBM can propose an upgrade scenario to even move partitions without downtime with LPM.

B. Exadata is a solution comprised of servers, disk storage, flash storage, networking and software. Your server is apparently fine, but there might be a problem with storage. IBM can propose a faster storage solution, allowing you to keep the server and optimize your costs.

C. Exadata might have run the Oracle database faster due to the fact that it is powered by Oracle SPARC T5 processors which were designed for Oracle software. On the other hand, other workloads will definitely run slower, so you should stick to the existing solution for a balanced performance across your environment.

D. Exadata is comprised of a cluster of servers connected by Infiniband. You are comparing this to a single server. IBM can propose a second server with an Infiniband network to address this issue.