CORE 1 General Flashcards
TS Theory 1
Identify The Problem
TS Theory 2
Establish Theory
TS Theory 3
Test the Theory
TS Theory 4
Establish a Plan of Action
TS Theory 5
Verify Full Functionality
TS Theory 6
Documentation
GPU
Graphics Processing Unit
RAM
Random Access Memory
CPU
Central Processing Unit
VGA
Video Graphics Array
DVI
Digital Visual Interface
Intermittent Shutdowns caused by what?
Overheating
Heat sink does what?
Transfer heat from the CPU
Uses LGA (Land Grid Array)
Intel
Uses PGA (Pin Grid Array)
AMD
What is DDR4
Double Data Rate 4 - a type of RAM
What does Parity do?
Verifies information from RAM is correct
What is ECC
Error Correcting Code - Corrects issues found on RAM
SO-DIMM
Small outline Dual Inline Memory Module - Laptop memory
Virtual Memory
Extra memory stored on storage device as memory backup
BIOS
Basic Input / Output Services
What is the job of the BIOS
Allow communication and interaction with motherboard before OS startup
Difference between firmware, software, and hardware
Firmware burned onto chip, software copied to media, and hardware is the physical components
P.O.S.T.
Power on Self Test - tests hardware on startup
Post code - 1 beep
Reporting back good
Post code - continue to beep
No RAM
How to get into BIOS
DEL or F2
RTC
Real Time Clock
What does the CMOS Battery do?
Date / Time
ATX Motherboard
Largest Motherboard -
12” x 9.6”
mITX (Mini-ITX) motherboard
6.7” x 6.7” SMALL
mATX (MicroATX)
9.6” x 9.6”
Northbridge
Handles Fast Stuff
Southbridge
Slower Stuff (USB I/O functions)
230 Volts of AC (VAC)
European Outlets
120 Volts of AC (VAC)
North American
20+(P4) Connector
ATX Power Supply
Power Connector for Hard Drives
SATA
PSU
Power Supply Unit
5.25” form Factor
Optical Media
3.5” and 2.5” form factor
Hard Drives
1.8” form factor
SSD
ATA
Advanced Technology Attatchment
eSATA
external sata connector
NVMe
Non-Volatile Memory Express
RAID
Redundant Array of Independent Disks
Raid 0
Striping - minimum 2 drives. Data split between drives. Provides Speed.
Raid 1
Mirroring - 2-4 drives. Duplicates information. Redundancy.
Raid 5
Striping w/ Parity - Minimum 3 drives. Splits data and creates a copy.
Raid 10
2 pairs of drives - Splits data and mirrors data.
TPM
Trusted Platform Module
Causes Crashes and Reboots
Corrupt OS
Clicking in computer
Hard Drive mechanical failure
USB 1.0 Speed
1.5 Mbps
USB 1.1 Speed
12 Mbps
USB 2.0 Speed
480 Mbps
USB 3.0 Speed
5 Gbps
USB 3.1 Gen1 Speed
5 Gbps
USB 3.1 Gen 2 Speed
10 Gbps
USB A goes where?
Into Computer
USB B goes where?
Into Devices
What’s optical Media
CD, DVD, Blu Ray
CD storage amount
650-700mb
DVD storage amount
4.37 GB - 15.9 GB
Blu-Ray Storage
15.6 GB - 50 GB
PCI and PCIe
Peripheral Component Interconnect (express)
What kind of PCIe lanes
x1, x4, x8, x16
LCD
Liquid Crystal Display
CCFL
Cold Cathode Fluorescent Lamp
LED
Light Emitting Diode
TN Screen
Twisted Nematic - speed
IPS screen
In Plane Switching - Wide range
OLED
Organic LED
DLP
Digital Light Processing
HDMI
High-Definition Multimedia Interface
DP and MiniDP
Display Port and Mini Display Port
Projector Throw
How big the screen is when it’s far away, how small it is when it’s close.
CRT
Cathode Ray Tube
LAN
Local Area Network
MAC
Media Access Control
48-bit address
MAC Address
HUB
Repeats traffic on LAN to all nodes.
Switch
Filters traffic based on MAC address.
WAN
Wide Area Network
DHCP
Dynamic Host Configuration Protocol
Provides IP addresses
DHCP
DOCSIS
Cable Modem technology
TP Cable
Twisted pair cable
UTP cable
Unshielded Twisted Pair
Max distance of UTP
100m
RJ-11
Used to terminate Telephone Cables
RJ-45
Used to terminate Ethernet Cables
STP cable
Shielded Twisted Pair
Fiber Optic Cable
uses light and not electricity
Cat 5 speed
100 mbps
Cat 5e speed
1 Gbps
Cat 6 speed
1 Gbps @ 100m
10 Gbps @ 55m
Cat 6a speed
10 Gbps @ 100m
Plenum Cables
Fire Resistant and non toxic
Ethernet Cabling Standards
T568A / T568B
Straight Through Cable
Cable wired with one standard
Crossover Cable
Cable wired with opposite standards
MDF
Main Distribution Frame - Equipment storage
Patch Panel
Organizes network cables
110 Punchdown Tool
Used for punching into Patch Panel
Loopback Plug
Test network ports
NIC
Network Interface Card
255.255.255.0
Subnet Mask
DHCP
Dynamic Host Configuration Protocol - Configures IP, Subnet Mask and Gateway.
APIPA
Automatic Private IP Addressing
169.254.x.x
APIPA address
123.23.123.2 is what kind of IP address?
IPV4
2001:0db8:85a3:0000:0000:8a2e:0370:7334
IPV6
DNS
Domain Name System
What does DNS do?
Converts text to IP address
Port 20/21
FTP File Transfer Protocol
FTP
File Transfer Protocol
22
Secure Shell
SSH
Secure Shell
23
Telnet
25
Simple Mail Transfer Protocol
SMTP
Simple Mail Transfer Protocol
53
Domain Name System
80
Hypertext Transfer Protocol
HTTP
Hypertext Transfer Protocol
67/68
DHCP
110
POP3
Post Office Protocol v3
POP3
137/139
NetBIOS
143
IMAP
Internal Mail Access Protocol
IMAP
161 / 162
Simple Network Management Protocol SNMP
SNMP
Simple Network management Protocol
389
LDAP Lightweight Directory Access Protocol
LDAP
Lightweight Directory Access Protocol
443
Hypertext Transfer Protocol Secure (HTTPS)
HTTPS
Hypertext Transfer Protocol Secure
445
Server Message Block (SMB)
SMB
Server Message Block
3389
Remote Desktop Protocol (RDP)
Purpose of Port numbers
Get data to right applications
UDP
User Datagram Protocol
TCP/IP
Transmission Control Protocol /Internet Protocol
ICMP
Internet Control Message Protocol
Connection based protocol
TCP
Connectionless protocol
UDP
FQDN
Fully Qualified Domain Name
DMARC
Domain-Based Message Authentication, Reporting, and Conformance
Uses a 32-bit addressing system, allowing for approximately 4.3 billion unique IP addresses.
IPv4
