Mushtaq's blog

File Storage Technologies - 9

a CCNA Cloud CLDFND 210-451 summary

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Mushtaq Smb
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  1. Part of file metadata

    • Time and date of creation
    • Author name
    • Last modified
    • Access permission

  2. Difference between block storage and file storage technologies,

    File storage devices can control content

    image.png

  3. Available options for volume formatting in Windows platforms,

    • NTFS,
    • FAT16,
    • FAT32

  4. Linux command allows a file to be fully controlled by any system user

    chmod 777

  5. SAN vs NAS differences,

    • SAN uses Fibre Channel protocol
    • NAS supports RAID, uses NFS (Network File System) or SMB, supports disk aggregation
    • Both SAN and NAS create volumes

    • image.png

  6. Fact about Mount protocol,

    allows a client to attach a remote directory tree to a local file system

  7. SMB (Server Message Block) architecture, POSIX (Portable Operating System Interface) is not part of this architecture.

  8. The most commonly used access protocol for cloud file-hosting services, HTTP

  9. The file access protocol used to store VM files from VMware ESXi, NFS

Linux command chmod

  • read : 4
  • write : 2
  • execute : 1
// restricting access to a file
$chmod u=rwx,g=rx,o=r sample.txt

//granting full access to a file
$chmod 777 sample.txt

//restricting again
$chmod 755 sample.txt
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