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EMC Specialist - Technology Architect, PowerScale Solutions Sample Questions:

1. A potential customer has a requirement for 4 PB of usable capacity to store media files. Their data center has limited physical space, so efficient use of that space is important. However, the customer is concerned about using 3 TB or larger drives because of rebuild times.
How does an Isilon cluster address this customer's concern?
Response:

A) Nodes have more drives per rack unitProactive hot sparing eliminates most drive rebuilds
B) OneFS protects data rather than rebuilding drivesSplitting drives into failure domains reduces risk
C) Proactive hot sparing eliminates most drive rebuildsEndurant Cache reduces the overhead during drive rebuild operations
D) Drive recovery takes the same amount of time regardless of drive sizeShort-stroking 4 TB drives to reduce drive seek and access time

2. What method does the MediaScan job leverage to locate and clear media-level errors?
Response:

A) CRC
B) MD5
C) FEC
D) SHA256

3. What is the best case performance for Backup Accelerator when backing up to LTO-4 or LTO-5 drives?
Response:

A) 1.7 TB/hr
B) 864 GB/hr
C) 3.4 TB/hr
D) 2.6 TB/hr

4. You are setting up SmartPools and SmartConnect on an Isilon cluster. Which Microsoft Windows system tool will illustrate the difference in performance experienced by clients connecting to different tiers of storage?
Response:

A) MiTrend
B) Iometer
C) iostat
D) IOZone

5. What is the threshold for a file to be considered small on a PowerScale Gen6 cluster?
Response:

A) 256 KB
B) 64 KB
C) 8 KB
D) 128 KB

Solutions: