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Hitachi HAT-420 Exam Syllabus Topics:

Hitachi Data Systems Certified Professional - Modular storage installation Sample Questions:

1. What are two advantages of the Memory Management Layer (MML) in Hitachi Unified Storage systems?
(Choose two.)

A) LU quick and normal format speeds are increased.
B) Metada for MML-supported functions is copied to cache only when needed for processing.
C) Copy-on-Write Snapshot and TrueCopy Extended Distance no longer require a data pool for
differential data.
D) The DM-LU size is automatically adjusted depending upon the number of copy pairs.

2. Which two apply when replacing a disk on a Hitachi Unified Storage (HUS) system? (Choose two.)

A) The Web tool should be used to confirm that the replacement is successful.
B) The HUS needs to be in maintenance mode when disks are replaced.
C) A wrist strap must be used when replacing disk drives.
D) The faulty drive must be blocked using SNM2 before replacement.

3. You are installing the latest release of Hitachi Device Manager and Tuning Manager on different servers
to support your Hitachi Unified Storage (HUS) environment. Which two statements are correct in regards
to establishing communication between servers? (Choose two.)

A) The servers communicate in-band over FC connections to the HUS.
B) The servers' system clocks must be synchronized with less than 5 minutes difference.
C) The servers use IPv4 protocol to communicate.
D) The servers use a heartbeat poll over a dedicated management IP link.

4. A customer will be implementing a Hitachi Unified Storage File Module two-node NAS cluster with one
SMU. How many power connections are necessary?

A) 5
B) 4
C) 6
D) 3

5. A customer wants to configure a specific 5GB LUN for the fastest possible response time on a Hitachi
Unified Storage system. Which feature should be used?

A) Data Retention Utility
B) Volume Migration
C) Cache Partition Manager
D) Cache Residency Manager

Solutions: