A+ 1101

Question 1

Parts of a laptop

Answer 1

Battery (lithium ion), Keyboard, RAM, HDD/SSD, Wireless card

Question 2

Laptop RAM sizes

Answer 2

4GB, 8GB, 16GB, 32GB, 64GB, 128GB

Question 3

RAM channels

Answer 3

Single: One pathway budget/entry laptop, only 1 RAM ascend at a time
Dual: Two pathways ascend simultaneously, laptops and desktops
Triple: additional channel than dual. Ascend simultaneously. older high end systems, intel core IT processors
Quad: highest level memory bandwidth, high end desktop and workstations. video editing/ 3d rendering

Question 4

Steps of Installing RAM

Answer 4

1. Power off and unplug
2. Locate RAM
3. Align RAM with slot
4. Push RAM with slot
   Push RAM into slow with 45 degree angle
5. Click into place
6. Close and secure
7. Plug in and power on

Question 5

Parts of the motherboard

Answer 5

CPU socket, PCI Express video card slots, PCI slot, Floppy drive, IDE connections, CMOS Battery (keeps time), SATA DDR DIMM

Question 6

ATX, Micro ATX, and Mini-ATX

Answer 6

ATX: 12x9 in., 7 expansion slots, mid-to-full sized desktops
Micro: 9.6x9.6 in., 4 expansion slots, mid-to-full sized desktops
Mini: 6.7x6.7 in., 7 expansion slots, small form factor systems

Question 7

PCI & PCIe

Answer 7

PCI: connects expansions cards
PCIe: offers higher data transfer rates

Question 8

Sata & eSata

Answer 8

Sata: Connects storage to motherboard
eSata: Connects EXTERNAL storage devices

Question 9

Headers & M.2

Answer 9

Headers: pin connecting peripherals
M.2: small and versatile connector

Question 10

Abbreviations for PCI, PCIe, SATA, and
eSATA

Answer 10

PCI: Peripheral component interconnect
PCIe: PCI express
SATA: Serial Advanced Technology Attachment
eSATA: External SATA

Question 11

Multi socket motherboard

Answer 11

Supports multiple CPUs on a single motherboard. High end workstations or servers systems that require significant processing power. (compatibility comes down to supporting # of CPUs)

Question 12

BIOS

Answer 12

Traditional, Initializes during boot up.
Basic functions.
6-bit mode.
GUI functionality

Question 13

Secure boot

Answer 13

Only trusted and digitally signed software is leaded during boot

Question 14

CPU architecture

Answer 14

X64/X86: supports 64 bit computing, larger memory, increased computation capabilities.
ARM: Advanced Rise Machine- mobile/watch, lower power.
Multiprocessors: SMP, allows multiple CPUs that share a common operating system and memory.
Single core: single processing unit/core.
Multicore: multiple processing units/ cores.

Question 15

TPM

Answer 15

(Trusted platform module)
hardware based security chip
Secure foundation
Protects and stores data
Bitlocker needs TPM chip
Integrated into computer system

Question 16

HSM

Answer 16

HSM = Hardware Security Module
Physical device
Encryption/Decryption
Ensure confidentiality and integrity
Expansion card
Standalone devices that can be connected externally

Question 17

Expansion cards

Answer 17

Sound cards
video cards
capture card: record or capture audio and video
NIC

Question 18

Cooling

Answer 18

Active/Passive cooling the CPU
-Fans (active)
-Liquid cooling (active)
-Heat sink (Passive): device that transfers heat away from cpu or graphics card
- Thermal paste/ pads

Question 19

Form factor

Answer 19

Size and shape of a power supply unit.
most common for factor is ATX
Industry standard
Available in different wattage

Question 20

110-120 VAC VS. 220-240 VAC

Answer 20

110-120 VAC: Standard, US & Canada, Lower voltage: needs higher currents
220-240 VAC: Higher efficiency, Europe and elsewhere, Wasteless and generates less heat

Question 21

Output fundamentals

Answer 21

3.3V: Lower voltage & power, old CPUs, RAM modules
5V: Most common, Basic power, OLD HDDs, Input devices
12V: Higher power, Newer CPUs, Graphic cards, HDD

Question 22

Cables/ power supply

Answer 22

Main power: P1 (20 pin/24pin/20+4pin), power motherboard.
Aux or CPU: 4 pin or 8 pin - power CPU.
Molex: 4 pin- power hardrive and optical drivers.
Sata: 7 pin for data - power dardrive and optical drivers
Bery: 4 pin - old school floppy drive power.
PCI/PCIe: 6 pin/8 pin/6+2 pin- adapter card power

Question 23

Redundancy and modularization

Answer 23

Modular: Cable management, reduce cable clutter.
Overcurrent protection (OCP): Safety Measures, Monitors current.
Redundant: Multiple power supply, backup power, In servers, second in passive mode.
Battery backup: Ups (Uninterpreted power supply), safegaurds against over current, Doesn’t have a fixed amount of lives

Question 24

The 3 power ratings

Answer 24

Low: 300w-500w basic systems.
Medium: 500w-750w mid-range systems.
High: 750w-1000w high performance systems

Question 25

RAM Types

Answer 25

Virtual RAM, SODIMM, DDR, DDR3, DDR4, DDR5, UDIMM, ECC RAM, ATX, miniATX

Question 26

DDR, DDR3, DDR4, & DDR5

Answer 26

DDR (memory transfers twice as fast)
DDR3 (voltage of 1.5V twice as fast)
DDR4 (Lower voltages (1.2V) faster, less voltage),
DDR5 (On-dire error correction capability, 1.1V)

Question 27

SODIMM VS. UDIMMM

Answer 27

SODIMM: (mini pPCs & small desktop), UDIMM: Opens RAM: faster access, cheaper, unreliable

Question 28

Virtual Ram & ECC Ram

Answer 28

Virtual RAM: used as an extension of physical RAM,
ECC RAM: used in mission crirical systems