Hitachi HAT-420 real exam prep : Hitachi Data Systems Certified Professional - Modular storage installation

  • Exam Code: HAT-420
  • Exam Name: Hitachi Data Systems Certified Professional - Modular storage installation
  • Updated: May 31, 2026
  • Q&As: 110 Questions and Answers

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

1. Which two statements accurately describe the Program Product functions available on Hitachi Unified
Storage (HUS) systems? (Choose two.)

A) LUN resizing is a basic function in SNM2 and does not require a separate license key.
B) Hitachi Dynamic Link Manager is used to control the HUS active/active controller feature.
C) The Tray Power Saving function does require a separate license key.
D) Restricting access to a HUS Command Device is possible using Account Authentication.


2. A customer wants to migrate data between two Hitachi Unified Storage systems using TrueCopy. What
are two requirements? (Choose two.)

A) There must be FC connectivity between the arrays.
B) The DM-LU must be greater than 10GB.
C) The P-Vol and S-Vol size must be equal.
D) A Command Device must be created.


3. What are the two bitmap locations used by the Memory Management Layer during LU format in Hitachi
Unified Storage systems? (Choose two.)

A) swapped in and out of cache as needed
B) in the RAID group upon creation
C) SSD on the Cache Memory Adapter
D) in Cache Memory Adapter Master Partition 0


4. You plan to use Storage Navigator Modular 2 (SNM2) to perform a non-disruptive upgrade of the firmware
on a Hitachi Unified Storage (HUS) system. What are two requirements for this process? (Choose two.)

A) All hosts must be connected to the HUS using HDLM or similar multi-pathing software.
B) The HUS must have a Device Manager Agent installed and running.
C) You must have a working LAN connection between the SNM2 server and the HUS.
D) There must be no hardware faults or missing components on the HUS.


5. What are two ways to restrict access to storage through a Fabric? (Choose two.)

A) Useport security on the switch(es)
B) Use SNMP
C) Use Host Group security
D) Use zoning


Solutions:

Question # 1
Answer: A,C
Question # 2
Answer: B,C
Question # 3
Answer: A,B
Question # 4
Answer: C,D
Question # 5
Answer: C,D

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