Chapter 3 Computer Assembly Flashcards
When the computer boots the BIOS performs what? 3.2.1.1
POST power-on self-test This check all hardware installed on the computer
What does CMOS stand for? 3.2.1.2
Complementary Metal Oxide Semiconductor
What information is stored on CMOS? 3.2.1.2
setup program to configure settings for the hardware devices.
What is Trusted Platform Module? 3.2.2.3
The TPM chip contains security items, such as encryption keys and passwords.
What does RAID stand for? 3.3.2.1
Redundant Array of Independent Disks
What is RAID 0? 3.3.2.1
also known as a stripe set or striped volume) splits data evenly across two or more disks (striped) without parity information for speed.
What is RAID 1? 3.3.2.1
An exact copy (or mirror) of a set of data on two disks.
What is RAID 2? 3.3.2.1
stripes data at the bit (rather than block) level, and uses a Hamming code for error correction
What is RAID 3? 3.3.2.1
A RAID 3 uses byte-level striping with a dedicated parity disk. RAID 3 is very rare in practice. One of the characteristics of RAID 3 is that it generally cannot service multiple requests simultaneously.
What is RAID 4? 3.3.2.1
RAID 4 uses block-level striping with a dedicated parity disk. This allows each member of the set to act independently when only a single block is requested.
What is RAID 5? 3.3.2.1
A RAID 5 uses block-level striping with parity data distributed across all member disks. RAID 5 has achieved popularity because of its low cost of redundancy. This can be seen by comparing the number of drives needed to achieve a given capacity.
What is RAID 6? 3.3.2.1
RAID 6 extends RAID 5 by adding an additional parity block; thus it uses block-level striping with two parity blocks distributed across all member disks.
What is Lojack do? 3.2.2.3
. Lock the computer remotely.
. Display a message so that a lost computer can be returned to the owner.
. Delete sensitive data on the computer.
. Locate the computer using geotechnology.
