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(1) What is the most common technique used for finding duplicate blocks/data? A

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(1) What is the most common technique used for finding duplicate blocks/data?

A. Bit-for-bit comparisons on all new blocks

B. Hashing/fingerprinting

C. Encryption

D. Storing all blocks in an content addressable object store

 

(2) Which of the following describes sub-LUN auto-tiering?

A. Placing data on tiers depending on its access pattern

B. Placing data on different tiers of storage based on when the blocks were written

C. Placing data on tiers of storage based on the LUN name

D. Placing data on tiers of storage based on the last modified time of the file

 

(3) Which of the following technologies is being described: Re-encoding data into less bits as the data arrives at the storage system?

A. Inline compression

B. Post-process compression

C. Inline deduplication

D. Zero space reclaim

 

(4) Which of the following effectively describes capacity optimization technologies?

A. Technologies used to reduce the power consumed by media used to store data

B. Technologies used to reduce the space required to store persistent data

C. Technologies used to improve the performance of data stored on disk

D. Technologies used to duplicate stored data

 

(5) Which of the following capacity optimization technologies is being described: Space is allocated to volumes on-demand as data is written to the volume?

A. Deduplication

B. Compression

C. Thin Provisioning

D. Auto-tiering

 

(6) Which of the following deduplication technologies is considered the most effective?

A. Block-based with a small fixed block size

B. Block-based with a large variable length block size

C. File-based single instancing

D. Block-based with a small variable length block size

 

(7) Typically, how much capacity does a thinly provisioned volume consume when it is first created?

A. Zero, or very little

B. Half of the virtual capacity of the volume

C. All of the capacity of the volume

D. One block for every track the volume occupies

 

(8) Which of the following cannot reduce the amount of data transmitted over the replication network?

A. Compression

B. Deduplication

C. Thin Provisioning

D. Auto-tiering

 

(9) Which technology allows administrators to allocate more storage than they actually have?

A. Under-provisioning

B. Over-provisioning

C. Thick-provisioning

D. Right-provisioning

 

(10) Which capacity optimization technology is being described: Recognizing blocks of data already stored, and only storing a single copy?

A. Compression

B. Tiering

C. Over-provisioning

D. Deduplication