Core 1 Comptia

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Physical

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Tags and Description

101 Terms

1

Physical

Physical Structures (Hubs, fiber, repeaters) bits

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2

Data

Formats data into frames (MAC/Ethernet)

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3

Network

Decides which physical path the data will take (Packets and IP)

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4

Transport

Transmit data using protocols in different parts (Segments)-(TCP, UDP)

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5

Session

Establish and terminates network communications (Data, tunneling, NFS, SQL)

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6

Presentation

Data representation and encryption (Data, compression)

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7

Application

End user layer (Data, HTTP)

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8

APIPA

169.254.0.0 → 169.254.255.254

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9

Class A

10.0.0.0 → 10.255.255.255

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10

Class B

172.16.0.0 → 172.31.255.255

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11

Class C

192.168.0.0 → 192.168.255.255

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12

IPv4

32 bit and 4 8-bit sections

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13

IPv6

126 bit and 8 blocks

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14

1 - 127

255.0.0.0

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15

128 - 191

255.255.0.0

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16

192 - 223

255.255.255.0

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17

ping

127.0.0.0

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18

445

Server Message Block (SMB) TCP/IP

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19

22

Secure Shell (SSH)

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20

23

Telnet

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21

427

Service Location Protocol (SLP)

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22

68

Dynamic Host Configuration Protocol (DHCP) - the server

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23

67

Dynamic Host Configuration Protocol (DHCP) - the client

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24

389

Lightweight Directory Access Protocol (LDAP)

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25

137

NetBIOS over TCP

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26

25

Simple Mail Transfer Protocol (SMTP)

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27

80

Hypertext Transfer Protocol (HTTP)

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28

110

Post Office Protocol 3 (POP3)

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29

53

Domain Name System (DNS)

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30

138

Network Basic Input/Output System (NetBIOS) UDP

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31

21

File Transfer Protocol (FTP) transfer control information

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32

548

Apple Filing Protocol (AFP)

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33

3389

Remote Desktop Protocol (RDP)

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34

20

File Transfer Protocol (FTP) transfer the data

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35

443

Hypertext Transfer Protocol Secure (HTTPS)

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36

143

Internet Mail Access Protocol (IMAP)

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37

161

Simple Network Management Protocol (SNMP) used by the SNMP manager to query agents

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38

162

Simple Network Management Protocol (SNMP) used by agents to send alerts

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39

139

Server Message Block (SMB) NetBIOS

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40

Processing

Final page is stored in the memory (1)

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41

Charged

Drum is charged -600v by the Primary Corona (2)

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42

Exposing

Laser beam writes -100 v image to drum surface (3)

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43

Developing

Toner is applied to the surface of the drum (4)

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44

Transferring

The transfer roller puts a positive charge on the paper to pull the toner from the drum and onto the paper - Secondary corona wire (5)

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45

Fusing

Fuser assembly uses heat and pressure to fuse toner to paper - 400 degrees (6)

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46

Cleaning

The drum is cleaned of residual toner and the charge (7)

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47

Storage Attached Network (SAN)

A high-speed network for storing and sharing files

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48

Body Area Network (BAN)

A very small network that consists of wearable or implanted devices such as a smart watch, fitness trackers, or medical implants.

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49

Wireless Local Area Network (WLAN)

Same as LAN but uses wireless connection/radio signal.

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50

Metropolitan Area Network (MAN)

A network that covers an area as small as a few city blocks to as large as an entire metropolitan city.

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51

Wide Area Network (WAN)

Group of LANs that are geographically isolated but are connected to form a large internetwork.

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52

Intranet

A private network that uses internet technologies.

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53

Extranet

A private network that uses internet technologies but its resources are made available to trusted external users.

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54

Routers

connect multiple networks together.

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55

Switches

connect multiple computers inside of a network together and manage traffic

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56

\n Subnet

A portion of a network with a common network address.

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57

Transmission media

The medium that is used to carry electrical or radio signals between connected network hosts.

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58

Network Interfaces

Converts the digital network data into a signal that can be transmitted along the transmission medium.

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59

FTP

Provides a generic method of transferring files, file security, and allows file transfer between dissimilar computer systems.

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60

SSH

Allows for secure interactive control of remote systems. All communication is encrypted and is used to remotely login to a network device, such as a switch.

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61

Telnet

Used to remotely connect to another system. All data is transmitted in cleartext

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62

SMTP

used when sending email

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63

HTTP

Used by web browsers and web servers to exchange web pages through the WWW and intranets.

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64

IMAP

Email retrieval protocol designed to enable users to access their email from various locations without transferring messages or files between computers.

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65

POP3

Downloads emails from a server to a single computer, making those emails only accessible on that specific computer

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66

Local Area Network (LAN)

Covers a small local area such as a home, office, ot other building

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67

SLP

Locating printers and supported by printing system such as CUPS

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68

69

Trivial File Transfer Protocol (TFTP)

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69

PostScript

Slow, not found in many platforms, print files and memory requirements are larger. Graphics are detailed and identical print.

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70

Printer Control Language (PCL)

Fast Print Processing, Supported in many OS platforms. Not identical print copies and not supported in Macintosh.

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71

Cable Internet

Broadband technology that uses existing TV cables lines and is always connected (always up)

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72

DSL (Digital Subscriber Line)

A group of broadband technologies that covers a wide range of speeds

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73

Fiber Optic

A dedicated point-to-point (PTP) connection - Television, internet data, and voice communication

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74

Satellite

Provides high-speed internet connections in remote areas, however, require line-of-site wireless connectivity and latency occurs when uploading

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75

A wireless internet service provider (WISP)

Provides wireless network coverage to a certain location using wireless broadband

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76

Long-range fixed wireless (LRFW)

Networks are used to provide low-cost, point-to-point connections - use antennas

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77

Wireless Access Point

Allows wireless device connections to LAN (SOHO can also be WAP)

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78

100-Mbps Ethernet

Fast Ethernet - typically uses copper cabling rated CAT-5 or higher

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79

1000-Mbps Ethernet

Gigabit Ethernet - uses the twisted-pair cable and fiber-optic cable (CAT 6)

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80

10-gigabit ethernet

Typically uses fiber-optic cable

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81

UTP

Least expensive and most common cable

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82

STP

Cable uses a covering or shield around each pair of wires to protect it from EMI and cost more

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83

Coaxial

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84

Fiber cables

Transmit signals as pulses of light over glass or plastic strands inside protective tubing

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85

Single-mode

cable uses a single path for light to travel through it

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86

Multi mode

cable uses multiple paths for light

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87

Connectors of Fiber

ST (Straight Tip), LC (Lucent Connector), SC (Subscriber Connector)

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88

Power over Ethernet (POE)

Uses the power lines in a building to transmit data

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89

The internet of Things (IoT)

Describes physical devices that are connected directly to the network and communicate directly to the internet - improve quality of life

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90

Software-defined networking (SDN)

Uses software applications and programs to essentially virtualize networking

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91

Crossover cable

Used to connect two like devices such as a hub to a hub or a PC to a PC

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92

568B

Orange/white, orange, green/white, blue, blue/white, green, brown/white, brown

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93

568A

Green/white, green, orange/white, blue, blue/white, orange, brown/white, brown

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94

Step 1 of Troubleshooting

Identify the Problem (Gather Information)

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95

Step 2 of Troubleshooting

Research

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96

Step 3 of Troubleshooting

Establish a theory of probable cause

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97

Step 4 of Troubleshooting

Test the theory

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98

Step 5 of Troubleshooting

Establish a plan of action

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99

Step 6 of Troubleshooting

Implement or Escalate

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100

Step 7 of Troubleshooting

Verify functionality

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