Different Types of Hard Drives and Their Interfaces
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Questions and Answers

What is the main characteristic of RAM?

  • Uses SAS interface
  • Requires a power source to hold data (correct)
  • Transmits data traditionally
  • Stores data permanently
  • Which interface does the SAS 1.0 hard disk use?

  • SCSI
  • NL-SAS
  • SAS 3.0 GB/s (correct)
  • SAS 2.0
  • What type of drives are NL-SAS drives?

  • Traditional SCSI drives
  • RAID array drives
  • Hot-swappable drives
  • Enterprise-level SATA drives with a SAS interface (correct)
  • What is the purpose of FDE/SDE encryption on SAS hard disks?

    <p>Prevent data leakage through encryption</p> Signup and view all the answers

    What is the main advantage of hot-swappable hard drives?

    <p>Allow replacement without shutting down the server</p> Signup and view all the answers

    What happens when a disk fails in a server with hot-swappable hard drives?

    <p>The disk can be replaced without shutting down the server</p> Signup and view all the answers

    What feature allows a single camera with a wide or high-resolution field of view to cover multiple areas of interest?

    <p>Digital PTZ</p> Signup and view all the answers

    Which type of camera lens typically provides a 360-degree field of view?

    <p>Fisheye lens</p> Signup and view all the answers

    What allows a VMS to display multiple camera views from a single recorded stream?

    <p>Client-side dewarping</p> Signup and view all the answers

    In the context of storage technology, what does PTZ stand for?

    <p>Pan-Tilt-Zoom</p> Signup and view all the answers

    Which recording method involves recording only once but decoding multiple times by the client software?

    <p>Normal recording</p> Signup and view all the answers

    How can one fisheye camera potentially replace 10 separate camera views?

    <p>Through the original panoramic fisheye view and digital PTZ</p> Signup and view all the answers

    What technology was developed to lower the cost of Fiber Channel solutions by eliminating the need to purchase HBA hardware?

    <p>Fiber Channel over Ethernet (FCoE)</p> Signup and view all the answers

    Which protocol enables block-level SCSI data transport between the initiator and the storage target over TCP/IP networks?

    <p>iSCSI</p> Signup and view all the answers

    What does RAID stand for in the context of data storage virtualization technology?

    <p>Redundant Array of Independent Drives</p> Signup and view all the answers

    Which technology allows fiber channel frames to be encapsulated over Ethernet networks?

    <p>Fiber Channel over Ethernet (FCoE)</p> Signup and view all the answers

    In the context of data storage, what is the purpose of combining multiple physical disk drive components into logical units?

    <p>To increase data redundancy</p> Signup and view all the answers

    Which technology uses a transport layer protocol that works on top of the Transport Control Protocol (TCP)?

    <p>iSCSI</p> Signup and view all the answers

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