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Isilon Infrastructure Specialist Exam for Technology Architects 認定 E20-553 試験問題:

1. How does Isilon SnapshotIQ use storage for snapshots?

A) Uses Changed Block Tracking and only saves the changed data blocks
B) Works on the file level and saves the entire file no matter what has changed
C) Works with 4 KiB blocks and will always use that amount of storage, no matter what has changed
D) Uses Changed Block Tracking but always uses a 4 KiB block, even if the data changed is less than that amount

2. A customer has two data centers (Site A and Site B) and in each data center there is an Isilon cluster. They are replicating data between the sites using SyncIQ. You have been reviewing their disaster recovery plan and found the following:
-The policies specify that SyncIQ runs a replication job every 3 hours and that the job finishes within 1 hour. -Three additional hours will be needed to get servers and the network redirected to work from Site B.
What is the Recovery Point Objective in this plan?

A) 5 Hours
B) 2 Hours
C) 4 Hours
D) 3 Hours

3. An Isilon customer needs to provide low latency I/O for their files due to a workflow which involves small, random reads and writes. Which SSD strategy is most effective for this use case?

A) Metadata read/write acceleration
B) Metadata read acceleration
C) Avoid SSDs
D) Data on SSDs

4. In an environment where an Isilon storage node has a system failure and disk drives are likely to be unaffected in the node, what is the preferred method for restoring cluster integrity?

A) Engage EMC support to perform a Disk Tango process to move drives, journal, and boot volumes to a replacement chassis
B) Migrate the disks from the failed node into spare drive bays on other nodes
C) Let OneFS proceed with its automatic SmartFail process to re-protect the failed node
D) Initiate a manual SmartFail process on the node as it is not started automatically

5. If a file is 4 KB in size, how much space is consumed for file data when it is written to the Isilon cluster?

A) 8 KB
B) 16 KB
C) 32 KB
D) 4 KB

質問と回答：