DEA-1TT5 Storage Networking (SAN and NAS) 2

Question 1

What is 'LUN masking' in a SAN environment?

Accepted Answer

A method to restrict which host initiators can access specific LUNs on the storage array

Answer

Encrypting the LUN data to prevent unauthorized access

Answer

Hiding LUNs from the storage management interface

Answer

Compressing LUN data to reduce capacity usage

Question 2

What protocol allows block storage to be accessed over a standard IP/Ethernet network without specialized FC hardware?

Accepted Answer

iSCSI

Answer

NFS v4

Answer

CIFS

Answer

NDMP

Question 3

In NAS architecture, what is a 'clustered NAS'?

Accepted Answer

A NAS solution that distributes file serving across multiple nodes sharing a common namespace and storage pool

Answer

Multiple NAS arrays connected via Fibre Channel

Answer

A NAS device optimized for cluster computing workloads

Answer

Two NAS devices in an active-passive failover pair

Question 4

What is the purpose of MPIO (Multipath I/O) in a SAN environment?

Accepted Answer

To manage multiple physical paths between a server and storage for failover and load balancing

Answer

To create multiple RAID groups simultaneously

Answer

To enable a single port to carry multiple protocols

Answer

To partition a SAN fabric into isolated security zones

Question 5

What is a 'VSS' (Virtual Storage Server) or SVM (Storage Virtual Machine) in modern NAS systems?

Accepted Answer

A logical partition of a storage cluster's resources that provides independent storage services with its own namespace and protocols

Answer

A physical storage appliance virtualized in VMware

Answer

A virtual machine used to manage storage arrays

Answer

A snapshot of a storage volume used for backup

Question 6

Which storage access method does object storage use?

Accepted Answer

REST API-based access using HTTP/HTTPS with a flat namespace

Answer

Block-level access via SCSI

Answer

File-level access via SMB/NFS

Answer

Direct DRAM access via RDMA