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Hitachi HAT-420 Exam Syllabus Topics:

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

Question 1

A customer will be implementing a Hitachi Unified Storage File Module in a switch-less two-node cluster.
What needs to be used for the cluster interconnect?

A. Two8Gbps FC connections with LC connectors
B. Two1Gbps Ethernet connections with RJ-45 connectors
C. Two10Gbps Ethernet connections with XFP connectors
D. Two10Gbps Ethernet connections with LC connectors

Question 2

A customer has identified a performance bottleneck with Online Transaction Processing (OLTP)
production host LUNs. The performance improvement plan includes a change to the Hitachi Dynamic Link
Manager load balancing algorithm which is currently set to Round Robin. Which setting would you
recommend?

A. Least blocks
B. Least I/Os
C. Extended Least blocks
D. Extended Round Robin

Question 3

Which three tasks can be performed using the Web tool of a Hitachi Unified Storage system? (Choose
three.)

A. identification of failed parts
B. configuration of additional cache memory
C. collection of a simple trace
D. offline firmware installation
E. setting up SNMP error reporting

Question 4

On a Hitachi Unified Storage system, which statement regarding Master Cache Partitions is correct?

A. They always exist whether or not the Cache Partition ManagerLicensekey is installed.
B. They do not exist until the Cache Partition ManagerLicensekey is installed.
C. There is always a Master Cache Partition 0 in controller 0 and in controller 1.
D. They always exist if there is 2GB or more of cache memory installed per controller.

Question 5

You have to replace a Cache Backup Battery online on a Hitachi Unified Storage system. Which two
statements are correct? (Choose two.)

A. When the power is turned off during the replacement, user data on the cache that has not been written
will be backed up to flash memory.
B. You must complete the replacement within a certain time frame.
C. You should only perform the replacement while the green READY LED on the front of the Controller
Box is blinking at high speed.
D. You should not perform any replacement while the green READY LED on the front of the Controller
Box is blinking at high speed.

Solutions: