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Showing posts from December, 2021

Technology questions explained

What is a major consideration that needs to be taken into the account? The major consideration that needs to be taken into account is the KVM switch. A user playing a game on a gaming PC with a standard EIDE 5400 RPM hard drive finds the performance unsatisfactory. Which hard drive upgrade would improve performance while providing more reliability and more energy efficiency? A hard drive upgrade that provides more reliability and more energy efficiency is a 7200 RPM SATA hard drive. What characteristic of electricity is expressed in watts? The characteristic expressed in watts is the work required to move electrons through a circuit multiplied by the number of electrons flowing through a circuit per second. What makes CRT monitor disposal dangerous for a technician who is handling the disposal? The CRT monitor disposal is dangerous for a technician that is handling the disposal potential residual high voltage. Which condition refers to a reduced voltage level of AC power that lasts

Raid levels

  Raid levels  RAID is a technology that is used to increase the performance and/or reliability of data storage. A RAID system consists of two or more drives working in parallel. These can be hard discs, but there is a trend to also use the technology for SSD (Solid State Drives). There are different RAID levels, each optimized for a specific situation. RAID 1 is a very simple technology. The type of RAID levels  RAID 0 - striping RAID 1 - mirroring RAID 5 - striping with parity RAID 6 - striping with double parity RAID 10 - combining mirroring and striping RAID level 0 - Striping RAID O system data is split up into blocks that get written across all the drives in the array. By using multiple disks (at least 2) at the same time, this offers superior I/0 performance. This performance can be enhanced further by using multiple controllers, ideally one controller perdisk. Advantageous of RAID 0  RAID O offers great performance, both in read and write operations. There is no overhead caused