DEA-1TT5 Storage Systems Fundamentals 2

Question 1

What is the function of a Host Bus Adapter (HBA) in a storage network?

Accepted Answer

It connects a server to a storage network such as Fibre Channel or iSCSI

Answer

An HBA is a hardware card installed in a server that provides connectivity to a storage network, handling protocol conversion and I/O offloading from the CPU.

Question 2

Which storage connectivity protocol uses TCP/IP to carry SCSI commands over an Ethernet network?

Accepted Answer

iSCSI

Answer

iSCSI (Internet Small Computer Systems Interface) encapsulates SCSI commands within TCP/IP packets, enabling block storage access over standard Ethernet infrastructure.

Question 3

What is 'thin provisioning' in storage management?

Accepted Answer

Allocating storage space on demand rather than pre-allocating the full requested capacity

Answer

Thin provisioning allocates storage space dynamically as data is actually written, rather than reserving all requested capacity upfront, improving storage utilization.

Question 4

In storage, what does 'deduplication' accomplish?

Accepted Answer

It eliminates redundant copies of data to reduce storage consumption

Answer

Deduplication identifies and removes duplicate data blocks, storing only unique data and replacing duplicates with pointers, significantly reducing storage capacity usage.

Question 5

What is the role of cache in a storage array?

Accepted Answer

To temporarily hold data in fast memory to accelerate read and write operations

Answer

Cache (typically DRAM or flash) acts as a high-speed buffer between hosts and spinning disks, absorbing write bursts and serving frequently read data without disk access.

DEA-1TT5 - Information Storage and Management Exam Practice Test

DEA-1TT5 - Information Storage and Management Exam Practice Test

DEA-1TT5 Storage Systems Fundamentals 2