Comptia A+ 220-801 Chapter 2

Question 1

What are used for permanent storage and quick access.

PG 70

Answer 1

Hard disk drive (HDD) systems (hard disks or hard drives for short)

Question 2

What controls the drives? PG 70

Answer 2

Controller

Question 3

This is the translator, converting signals from the controller to signals the computer can understand. PG 70

Answer 3

Host bus adapter (HBA)

Question 4

Name some of the components of a hard drive? pg 72

Answer 4

Platters
Read/write heads
Tracks
Sectors
Cylinders
Clusters (allocation units)

Question 5

Name the 5 speeds of a conventional HDD? pg 74

Answer 5

5400 rpm,7200 rpm,10,000 rpm,12,000 rpm,15,000 rpm

Question 6

is a magnetic storage medium that uses a diskette made of thin, flexible plastic enclosed in a protective casing.

Answer 6

floppy disk (or floppy diskette)

Question 7

What are the 3 types of Optical Drives? pg pg 78

Answer 7

CD,DVD,Blu Ray

Question 8

What does RAID Stand for and describe what you can accomplish with RAID

Answer 8

RAID stands for Redundant Array of Independent Disks. It’s a way of combining the storage power of more than one hard disk for a special purpose, such as increased performance or fault tolerance.

Question 9

What is RAID 1? pg 93

Answer 9

Also known as disk mirroring. RAID 1 is a method of producing fault tolerance
by writing all data simultaneously to two separate drives. If one drive fails, the other contains
all the data and will become the primary drive.

Question 10

What is RAID 5? pg 93

Answer 10

Combines the benefits of both RAID 0 and RAID 1, creating a redundant striped volume set. Unlike RAID 1, however, RAID 5 does not employ mirroring for redundancy.

Question 11

What are the 5 tape back up formats and whats the max capacity can each hold? pg 94

Answer 11

Quarter-inch Cartridge (QIC) 200KB to 525MB
Digital Linear Tape (DLT) Up to 160GB
Eight Millimeter (Exabyte) Up to 800GB
Digital Audio Tape (DAT)/Digital Data
Storage (DDS) Up to 300GB
Linear Tape-Open (LTO) Up to 1.5TB (12.8TB planned)

Question 12

What are the Different Sizes and Types of Floppy Diskette?

pg77

Answer 12

51⁄4" DD            360KB
51⁄4" HD              1.2MB
31⁄2 "DD             720KB
31⁄2 "HD            1.44MB
31⁄2 "ED            2.88MB

Question 13

What are Platters? PG 70

Answer 13

is the circular disk on which magnetic data is stored in a hard disk drive.

Question 14

The original PC floppy diskette, which used a platter that was 51⁄4 g in diameter and known as this? pg 76

Answer 14

minifloppy diskette,

Question 15

Flash Memory pg 95

Answer 15

This is an electronic non-volatile computer storage medium that can be electrically erased and reprogrammed.
Introduced by Toshiba in 1984, flash memory was developed from EEPROM (electrically erasable programmable read-only memory)

Question 16

In what year was a SIM Card Introduced? pg 96

Answer 16

1991

Question 17

What kind of storage device did the flash drive replace?

Answer 17

Floppies, Jaz and Zip

Question 18

The original power connectors attached to the early PC motherboards were known collectively as the pg109

Answer 18

AT system connector

Question 19

What is NAS ? PG 102

Answer 19

A network-attached storage (NAS) device is a server that is dedicated to nothing more than file sharing.

Question 20

Hot Swapping PG 102

Answer 20

are terms used to describe the functions of replacing computer system components without shutting down the system. More specifically, hot swapping describes replacing components without significant interruption to the system, while hot plugging describes the addition of components that would expand the system without significant interruption to the operation of the system.[

Question 21

The device in the computer that provides this power is

the PG 107

Answer 21

Power Supply

Question 22

is the vernacular term for a two-piece pin and socket interconnection, most frequently disk drive connectors. PG 110

Answer 22

Molex Connector

Question 23

A Berg connector is a brand of electrical connector used in computer hardware. Berg connectors are manufactured by Berg Electronics Corporation of St. Louis, Missouri, a division of Framatome Connectors International.

Answer 23

Berg connector

Question 24

is a wiring scheme in which multiple devices are wired together in sequence or in a ring.[1] Other than a full, single loop, systems which contain internal loops cannot be called daisy chains.

Answer 24

daisy-chaining.

Question 25

Whats the Max Amount of items that can be connected to 1 USB port?

Answer 25

127