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 (B)</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 (D)</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 (A)</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 (C)</p> Signup and view all the answers

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

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

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

<p>Pan-Tilt-Zoom (D)</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 (B)</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 (B)</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) (B)</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 (B)</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 (C)</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) (A)</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 (A)</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 (B)</p> Signup and view all the answers

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