Cisco
200-150 · Question #131
200-150 Question #131: Real Exam Question with Answer & Explanation
The correct answer is B: iSCSI. Block-based storage protocols operate at the raw block level and transport SCSI or Fibre Channel commands over a network, while NFS and CIFS are file-level protocols.
Cisco Data Center Storage
Question
Which two options are block-based storage protocols? (Choose two.)
Options
- ANFS
- BiSCSI
- CNAS
- DFCoE
- ECIFS
Explanation
Block-based storage protocols operate at the raw block level and transport SCSI or Fibre Channel commands over a network, while NFS and CIFS are file-level protocols.
Common mistakes.
- A. NFS (Network File System) is a file-level protocol that presents a shared file system to clients, not raw block storage.
- C. NAS (Network Attached Storage) is a storage architecture or device category, not a protocol, and it typically uses file-level protocols such as NFS or CIFS.
- E. CIFS (Common Internet File System) is a file-level protocol used for Windows file sharing and operates above the block level.
Concept tested. Block-level vs file-level storage protocols
Reference. https://www.cisco.com/c/en/us/products/storage-networking/index.html
Topics
#block storage#iSCSI#FCoE#storage protocols
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