Storage Advanced Quiz 4
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Quiz 4
1. What is "Data Scavenging" or "Garbage Collection" in an SSD?
Moving valid data to new blocks to erase and reclaim old storage blocks
Scanning the storage media to identify and recover previously deleted files
A security mechanism that wipes a drive after several failed login attempts
2. What is "RDMA" (Remote Direct Memory Access)?
Sharing a remote desktop screen with a storage administrator for support
Transferring data between memory systems without involving either CPU
Increasing available RAM by utilizing a portion of a high-speed hard drive
3. What is the "LUN Masking" security technique?
Obfuscating the name of a storage volume to hide it from standard scans
Applying heavy compression to specific volumes to mask their actual size
Restricting volume access so only specific host adapters can see the LUN
4. What is "Write-Back Caching with Dirty Mirroring"?
Storing unwritten data in two volatile caches to prevent loss during failure
Writing data to a disk and immediately deleting it to verify sector health
Mirroring a primary drive to a low-tier secondary disk for archival tasks
5. What is "Multipath I/O" (MPIO) intended to solve?
Increasing the total storage capacity of a single physical enterprise drive
Providing redundancy and load balancing if a network cable or switch fails
Running multiple guest operating systems simultaneously on one local drive
6. What is "NVMe Namespace Management"?
Standardizing computer names within an Active Directory domain structure
Managing a cloud-based file tagging system for unstructured object data
Provisioning a drive into logical volumes that appear as separate devices
7. What is "VAAI" (vSphere APIs for Array Integration)?
Offloading storage tasks from the hypervisor to the underlying hardware
Executing the VMware hypervisor directly inside a storage controller node
A specialized graphical dashboard for monitoring storage hardware health
8. What is "Bit Rot" (Silent Data Corruption)?
The physical oxidation of a hard drive's external metal or plastic casing
Gradual decay of storage media causing individual data bits to flip states
A type of malware that gradually deletes small, infrequently accessed files
9. What is "Opal" in the context of storage?
A rare material used in the manufacturing of high-end fiber optic cables
A legacy storage protocol used for mainframe backup and archival systems
A set of technical specifications for hardware Self-Encrypting Drives
10. What is "Converged Infrastructure"?
Combining compute, storage, and networking into a pre-configured package
Converting all legacy file storage into a modern object storage architecture
Migrating all local corporate data sets into a single public cloud provider
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