HAT-050 無料問題集「Hitachi Data Systems Qualified Associate - Storage Concepts」

（A）ability to turn off HDDs when not accessed

（B）dynamic fan speed adjustment

（C）on-demand cache partitioning

（D）adaptive dual power battery backup

（A）It provides increased network resilience.

（B）It enables faster access to all data tiers.

（C）It eliminates multiple storage management products.

（D）It optimizes availability of critical data.

（E）It extends the useful life of existing storage.

（A）It uses only homogeneous storage systems.

（B）It integrates less expensive storage tiers.

（C）All data is stored in cost-effective off-line storage.

（D）It offers policy-driven access to storage.

（A）Customers wanting to improve application availability by reducing downtime caused by backups.

（B）Customers with large numbers of file servers or NAS systems considering an archiving or a tiering strategy.

（C）Customers with a large number of departmental offices in multiple locations.

（D）Customers wanting to deploy a structured database for their customer data.

（A）A SAN can use existing LAN infrastructure.

（B）A SAN isolates storage behind its application server.

（C）A SAN provides high-speed data access.

（D）A SAN provides redundancy and fault tolerance

（A）public loop

（B）switched fabric

（C）arbitrated loop

（D）point-to-point

（A）RAID 5 has an additional parity disk.

（B）double-disk failure least affects RAID 5.

（C）RAID 6 has an additional parity disk.

（D）double-disk failure least affects RAID 6.

（A）DAS

（B）LAN

（C）ATA

（D）node

（E）WAN

（A）number of nodes

（B）logical topology

（C）cable types

（D）data transfer speed

（A）more data protection options

（B）flexible storage provisioning

（C）isolation of data behind servers

（D）reduced implementation costs