Cloud storage types, RAID levels, provisioning, and storage tiering concepts tested on the CompTIA Cloud+ exam.
36 cards · basic cards · AI-written, checked twice. Edit anything.
- What is object storage?
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Scalable cloud storage accessed via REST API, stores data as objects with metadata, suitable for unstructured data- What is block storage?
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Storage presented as raw volumes, attached directly to compute instances, provides low-latency access- What is file storage?
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Network-attached storage accessed via protocols like NFS or SMB/CIFS, supports shared multi-user access- What is archive storage?
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Long-term, infrequent-access storage for retention and compliance, lowest cost tier, slower retrieval- What does RAID 0 do?
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Stripes data across multiple disks for increased performance, no redundancy- What does RAID 1 do?
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Mirrors data across two disks, provides fault tolerance, 50% storage overhead- What does RAID 5 do?
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Stripes data with parity across three or more disks, tolerates one disk failure, requires minimum three disks- What does RAID 6 do?
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Stripes data with dual parity across four or more disks, tolerates two simultaneous disk failures- What is RAID 10?
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Combines mirroring and striping, mirrors pairs of striped disks, higher cost but better performance than RAID 5- What is thin provisioning?
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Allocating storage space only as needed, improving space efficiency but risking over-subscription- What is thick provisioning?
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Pre-allocating all required storage space upfront, guaranteeing availability but wasting unused capacity- What is dynamic provisioning?
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Automatically allocating storage resources based on demand in real-time- What is over-provisioning?
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Committing more storage capacity than physically available, relies on thin provisioning and assumes not all will be used- What is storage tiering?
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Automatically moving data between storage tiers based on access patterns and policies to optimize cost and performance- What characterizes the hot tier?
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Frequently accessed data, typically SSD-based, highest cost per GB, lowest latency
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