IBM IBM Certifications C1000-021 Questions & Answers

• Question 1:

  Which utility is used to collect Disk Magic input data from VMware servers?

  A. iostat

  B. vSphere Utilities

  C. esxtop

  D. PerfMon

  Correct Answer: A

• Question 2:

  A customer is looking to replicate data to its disaster recovery location. The customer has gathered data about I/O and throughput to the storage.

  Which piece of information is needed to properly size the bandwidth needed between the two locations?

  A. Peak port busy

  B. Peak control unit busy

  C. Peak write IOPS

  D. Peak write MBps

  Correct Answer: D

• Question 3:

  A customer has purchased two IBM Storwize V7000 systems and would like to implement a system topology that supports high availability. In the event of a site disaster, the customer requires access to all volumes without a loss of performance.

  Which IBM architecture will meet the customer's needs?

  A. Enhanced stretched cluster

  B. Transparent cloud tiering

  C. HyperSwap

  D. Volume mirroring

  Correct Answer: C

  Reference: https://www-01.ibm.com/support/docview.wss?uid=tss1wp102538andaid=1

• Question 4:

  A customer is looking an IBM Storwize V7000 based on NL-SAS drives against dual drive failure but wants the most efficient use of the capacity of the device.

  Which RAID scheme should the customer consider?

  A. RAID 6

  B. RAID 5

  C. DRAID 5

  D. DRAID 6

  Correct Answer: A

• Question 5:

  A customer needs to create a full copy of a production volume.

  Which option must be used creating a FlashCopy?

  A. Clone

  B. Duplicate

  C. Snapshot D. Volume Copy

  Correct Answer: D

  Reference: https://www.ibm.com/support/knowledgecenter/STXN8P/com.ibm.storage.ssic.help.doc/ f2c_fcprimarytask_2ep3uj.html

• Question 6:

  A customer has several large disk systems providing block data over Fibre Channel. The customer has several applications requiring different storage tiers including read-intensive SSDs, 15K RPM SFF drives and 7.2K RPM LFF drives.

  Which IBM solution allows IBM Storwize V7000 scalability and intermix of SFF and LFF drives?

  A. IBM High Density Expansion Enclosure

  B. EXP24S Expansion Enclosure

  C. Elastic Storage Server

  D. IBM F Model Expansion Enclosure

  Correct Answer: A

  Reference: http://www-01.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_sm/3/897/ ENUS2076-_h03/index.htmlandlang=enandrequest_locale=en

• Question 7:

  Which IBM resource allows the technical specialist to model a configuration to include disk drives, RAID types, array layouts, and feature codes?

  A. apacity Magic

  B. IBM Storage Insights

  C. Disk Magic

  D. e-config

  Correct Answer: D

• Question 8:

  A customer needs to implement CHAP on an IBM Storwize V7000. What does CHAP provide?

  A. It provides the mechanism for LUN masking

  B. It provides authentication using username and password

  C. It manages multipathing and load balancing

  D. It manages the IQN for a group of hosts

  Correct Answer: B

• Question 9:

  A customer wants to know the advantage of DRAID over traditional RAID

  What should the technical specialist explain?

  A. The hot spare space moves around the RAID array

  B. No rebuild area capacity is required

  C. All drives participate in application I/O

  D. It is a dynamic form of RAID that automatically adjusts the RAID level to performance needs

  Correct Answer: C

• Question 10:

  A company uses FlashCopy on IBM Storwize V7000 to maintain an accurate copy of IBM DB2 database volumes.

  How can the customer maintain the order of dependent writes?

  A. Volume mirroring

  B. Consistency Groups

  C. HyperSwap

  D. Global Mirror

  Correct Answer: B

  Reference: https://www.redbooks.ibm.com/redbooks/pdfs/sg247574.pdf (175, 176)