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CompTIA+ > Comptia A+ exam reivision > Flashcards

Comptia A+ exam reivision Flashcards

1
Q

How to install a battery on a laptop

A
  1. Removing the battery storage bay
  2. Removing the old battery from the bay
  3. Inserting the new battery into the bay and replacing the bay
  4. Determining the battery type for the replacement
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2
Q

How to install a keyboard on a laptop Step 1

A

Laptop fully powered off and unplugged from the wall

Remove the battery

Examine the screws on back of laptop

Choose appropriate equipment to remove screws, can check laptop model online

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3
Q

How to install a keyboard on a laptop Step 2

A

Remove the screws with a T-8 or Phillips-head screwdriver

With the laptop turned back over, open it

If keyboard is tucked under any plastic pieces, remove those pieces that have screws

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4
Q

How to install a keyboard on a laptop Step 3

A

With plastic cover gone, remove any screws at the top and remove the keyboard itself

Should be a thin, but wide data cable to the system board at the bottom, be careful with it

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5
Q

How to install a keyboard on a laptop Step 4

A

Lift the plastic connectors that holds this data cable in place

Remove data cable

Take new keyboard and slip the data cable back in between the plastic connectors on the system board

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6
Q

How to install a keyboard on a laptop Step 5

A

Put the plastic connector back into place and make sure it’s holding the data cable in

Position the keyboard into place and refasten the keyboard in place at the top

Replacing any screws that were there before.

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7
Q

How to install a keyboard on a laptop Step 6

A

Replace any plastic pieces that were covering the keyboard

turn the laptop over

replace all of the keyboard screws

When you replace the battery and turn it on, check the functionality

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8
Q

How to install wireless cards Step 1

A

you would open the same panel that holds the memory

Once you’ve found either type of wireless card, disconnect the two antenna contacts from the card

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9
Q

How to install wireless cards Step 2

A

pull by the connector itself

Remove any screws from the wireless card and gently pull out the card from the slot

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10
Q

How to install wireless cards Step 3

A

Insert the replacement card into the slot at a 45-degree angle, replace the screws, and reconnect the antenna to the adapter.

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11
Q

Describe LCD(liquid crystal display)

A

Default display type for both laptops and desktops

One or more small fluorescent tubes are used to backlight the screen for better viewing

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12
Q

What are the major types of LCDs

A

Active matrix screens and passive matrix screens

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13
Q

Describe passive matrix

A

uses a row of transistors across the top of the screen and a column of them down the side

sends pulses to each pixel at the intersection of each row and column combination and tells it what to display

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14
Q

Describe active matrix

A

An active matrix screen uses a separate transistor for each individual pixel in the display

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15
Q

Describe further features of passive matrix

A

becoming obsolete

less bright and poorer refresh rates

shittier image quality

Less power usage

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16
Q

Describe further features of active matrix

A

screens use more power

Almost all notebook PCs today use active matrix

higher refresh rates(compared to passive matrix)

brighter display quality.

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17
Q

Describe IPS(in plane switching)

A

a newer technology

better quality at angles other than straight on

better colour quality

slower response time

more expensive

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18
Q

Describe TN(twisted nematic)

A

older of the two major technologies for flat-panel displays

the shortest response time

high brightness

draws less power

poor quality when viewed from wide angles

suffers color distortions when viewed from above or from the sides.

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19
Q

Describe Vertical alignment (VA)

A

similar to TN and IPS, offers wider viewing angles and better quality but slower response times

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20
Q

Describe OLED(organic light emitting diode)

A

An organic light-emitting diode (OLED) is another type of LED technology

uses an emissive electroluminescent layer of organic compounds that emit light in response to an electric current

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21
Q

Features of OLED

A

their flexibility and transparency.

means they can roll up for storage (like a mat), and you can see through the display to objects behind the display

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22
Q

Describe Webcam

A

Are emdded in laptops or physically connected to computers

can capture still images or videoo

Can transmit video to the internet or save content locally

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23
Q

Describe microphone

A

Embedded in case- typically embedded somewhere within the exterior casing, location depends on the make and model

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24
Q

Describe digitizer/touchscreen

A

Digitizers read pressure applied to the surface of the display and are what make touchscreens work

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25
Q

Features of digitizer/touchscreen

A

In some cases, they work with a stylus or small pen-like device

or touch screen with finger

is a thin piece of clear material that fits on top of the display

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26
Q

Describe inverter

A

a component that takes DC power and converts it to an AC form that can be used by the LCD screen.

It is implemented as a circuit board that is located behind the LCD.

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27
Q

Features of inverter

A

If problems with flickering display or dimness occur, the inverter is a prime suspect.

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28
Q

Describe USB 1.1

A

Offers low and high speed version

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29
Q

Describe USB 1.1 low speed version

A

1.5 megabits per second

3 metres in length

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30
Q

Describe USB 1.1 high speed version

A

12 megabits per second

5 meter length

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31
Q

What can USB(universal serial bus) be used for

A

External storage devices
Webcams
Mouse and keyboard
Printers

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32
Q

Describe Universal serial Bus 2.0

A

Improved performance
480 megabits per second
5 metre length

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33
Q

Describe USB 1.1 and USB 2.0 connectors

A

Standard-A plug, the end that was inserted into your computer

Standard-B plug, inserted into the peripheral device, found mostly on printers

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34
Q

Describe Mini-B plug and Micro-B plug

A

both mainly used on smaller devices where space was limited, such as a digital camera

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35
Q

Describe Universal Serial Bus 3.0

A

5 gigabits per second

Approximately 3 meter length

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36
Q

Describe Universal serial bus 3.0 connectors

A

weren’t any different to the previous generation expect faster with interior plastic lining that was blue

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37
Q

Name universal serial bus 3.0 connectors

A

USB 3.0 standard- B plug
USB 3.0 standard-A plug
USB 3.0 micro-B plug- shaped physically differently

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38
Q

Describe Universal Serial Bus 3.1

A

Superspeed +
10 Gbps
Type A or USB-C(used)

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39
Q

Describe Universal serial bus 3.2

A

Newest devices
10 Gbps or 20Gbps
USB-C(used)

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40
Q

Describe USB-C connector

A

24 pins

Double sided- upside down plug dosne’t matter, can be plugged in either way

uses the same connector on both the host and the device ends, doesn’t matter either

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41
Q

Features of the lighting cable

A

Proprietary to Apple products

Used for charging and data transfer

Contains 8 pins per side

Can be inserted face up or dooown

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42
Q

Why is lighting cable better than Micro USB

A

Delivers Higher power
Better durability
Simpler to connect

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43
Q

Describe NFC(Near field communication)

A 
No pairing
No device discovery
Instant communication
Data sharing
Short distance
Radio-frequency identification
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44
Q

Describe touch pens

A

Pen shaped instrument
Specifically manufactured tips
Conductive and resistive stylus

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45
Q

Describe headsets

A

Hands-free audio-
Wired headsets, draw power from mobile device

Wireless headsets- uses bluetooth to connect
used to listen too music

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46
Q

Describe speakers

A

Battery powered
Bluetooth connection
Stereo sound
External speakers

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47
Q

Describe docking station

A

let you quickly connect/disconnect with external peripherals and may also provide extra ports that the notebook PC doesn’t normally have.

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48
Q

key features of docking stations

A 
Extra connectors
USB
HDMI
VGA
ETHERNET
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49
Q

Describe cold docking

A

The laptop must be turned off and back on for the change to be recognized.

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50
Q

Describe warm docking

A

The laptop must be put in and out of suspended mode for the change to be recognized.

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51
Q

Describe hot docking

A

he change can be made and is recognized while running normal operations.

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52
Q

key features of port replicator

A

Similar to docking station
Provides additional functionality to laptops
Smaller, lighter, and more portable than a docking station

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53
Q

Name port replicator connections

A

Parallel
Serial
USB
SCSI

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54
Q

describe port replicator

A

The port replicator connects to the laptop over a parallel or a serial connection, USB, or even SCSI.

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55
Q

Describe drawing pads

A

Drawing surface
specialised drawing pen
Function hot keys
Light and small

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56
Q

Describe Wi-Fi antennas

A

The wireless antenna is located in the display

Antenna wires wrap around the laptop screen, usually at the top

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57
Q

Describe DA-15

A

name indicates 15 pins or sockets arrananged in two rows, one of 8 and one of 7

Most commonly used for gaming controllers, some video outputs

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58
Q

Describe DB-25

A

Communications port

Most used for printer connections, some audio connections and some broadcast video equipment

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59
Q

Describe DC-37

A 
Used for specific industry equipment such as
 aerospace
various industrial instruments
monitors
scanners
defence
healthcare
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60
Q

Describe DD-50

A

uses three rows arranged in a 17 by 16 by 17 configuration

Most commonly used for devices that needed much faster data transfer rates than those of a serial port
any kind of SCSI equipment

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61
Q

Describe DE9

A

Communications port
Token ring network interfaces
Some very old video connections
Legacy computer mouse connector

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62
Q

Describe Bluetooth

A

High speed communication over short distances

PAN(personal area network)

Connects our mobile devices

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63
Q

Describe hotspot

A

Turns your phone into a Wi-Fi hotspot

Your own personal wireless router

extend the cellular data network to all of your devices

dependent on phone type and provider, may require additional charges and data cost

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64
Q

Describe laptop batteries

A

the power source when unplugged

Lithium- Ion
Lithium-Ion polymer
(charging the battery dimishes capacity)

Different form factor for each laptop

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65
Q

Replacing laptop keys

A

Delicate procedure

Refer to manufacturer’s instructions

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66
Q

What does SODIMM stand for

A

Small outline dual in line memory module

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67
Q

Describe laptop storage

A

Magnetic disk
SSD(solid state drive)
M.2

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68
Q

Describe magnetic disk

A

traditional spinning drive platters

2.5 form factors(3.5 inch for desktops)

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69
Q

Describe SSD(Solid state drive)

A

All memory, no moving parts
Silent, fast access time and less latency
2.5 inch form factors

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70
Q

Describe M.2

A

Smaller form factor
No SATA data or power cables
Easy to install and replace

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71
Q

Describe GSM(Global system for Mobile communication)

A

a network of gateways which allow access to the network,

and repeaters and relays which boost signal strength and pass communications along the network.

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72
Q

Features of GSM

A

GSM is globally widely used and available.

GSM supports transmitting data and voice both at once.

Stored in a SIM card.

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73
Q

Describe CDMA

A

Used to provide multiple devices simultaneous access
a form of multiplexing
each device is assigned a code
allows numerous signals on a single transmission channel

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74
Q

Features of CDMA

A

CDMA is available in fewer countries and carriers.

CDMA does not support the feature of transmitting data and voice both at once

Stored in a headset or phone

75
Q

Describe PRL(Preferred Roaming List) updates

A

Changes to Provider network configuration
Connecting to the right tower
Updating over-the-air

76
Q

Describe PRL process

A

is a process that ensures that any given mobile device is aware of any changes that have been made to the provider network, such as adding a new tower or decommissioning an old one.

77
Q

Describe hotspot

A

Turns your phone into a Wi-Fi hotspot

Extend the cellular data network to all of your devices

Extra phone charges may apply

78
Q

Describe 2G

A

GSM

DMA

79
Q

Describe 4G(LTE) Long term evolution

A 
Based on GSM and EDGE
Standard supports download rates of 150Mbit/s
Converged standard(GSM and CDMA providers)
80
Q

Describe 5G

A

Eventually 10gigabits per seconds
Larger data transfers
additional cloud processing

81
Q

Describe GPS(global positioning system) services

A

GPS uses standard radio transmissions

received by your mobile device from several satellites

allow your device to determine its geolocation.

82
Q

Features of GPS

A

Needs at least 4 satellites
determine location based on timing differences(longitude, latitude, altitude)
allows geotracking

83
Q

Describe cellular location services

A

Device actively calculating current location
Commonly using satellites
Often using a combination of internet connectivity and cellular data

84
Q

How to enable bluetooth(Android mobile devices)

A

Settings
Connections
Bluetooth
Wait until a check mark next to bluetooth(now enabled)

85
Q

Bluetooth pairing process

A 
Enable Bluetooth
Set devices to discoverable mode
Select discovered device
enter or confirm pin
test connectivity
86
Q

How to test bluetooth connectivity

A

Ensure devices are Bluetooth enabled
Reboot devices and connect again
Ensure devices are in range
Try connecting to a known working Bluetooth device

87
Q

How do you enable bluetooth(IOS mobile devices)

A

Settings
Bluetooth
Tap the slider to enable bluetooth

88
Q

Describe MDM(Mobile device managment)

A

Optimize the functionality and security of mobile devices

Protect the corporate network

process is effectively exclusive to business or corporate environments.

89
Q

Describe mobile device management features

A 
Device configuration
Remote wipe
Password enforcement
Device tracking
data encryption
allow list/blocklist
90
Q

Features of MAM(Mobile application management)

A

Corporate email configuration
Two-factor authentication
Corporate applications

91
Q

Describe Corporate email configuration

A

User does not need to configure anything

the MDM makes the changes on the device

92
Q

Describe Two-factor authentication

A

Requires specific authentication types

Biometrics, authentication app

93
Q

Describe corporate applications

A

Allow or restrict app installation

Prevent unauthorized app usage

94
Q

Describe account setup for Microsoft 365

A

Microsoft Outlook, Exchange
Authenticate to Microsoft 365(Username, password)
Able to select items to synchronize, (mail, contacts, calendars, reminders, notes)

95
Q

Describe iCloud

A

Integrated into IOS and Ipad OS
Provide an iCloud username and password
Extensive customization synchronization options
Synchronize to macOS(laptop, desktop and mobile device)
Configure network connections and use of cellular downloads

96
Q

Describe Google Workspace

A

Similar to process with Microsoft 365, username and password

97
Q

Common data to synchronize

A

Email
Photos
Calendar
Contacts

98
Q

Describe routers

A

Routes traffic between IP subnets
Makes forwarding decisions based on IP address
Can be referred to as layer 3 switches
Often connects diverse network types(LAN, WAN, copper, fiber)

99
Q

More information on routers

A

Connect networks together
Forward data based upon destination UP address
Allow multiple devices to use same internet connection

100
Q

Describe switches

A

Forwards traffic based on data link address
Has a ASIC(application specific integrated circuit)
may provide PoE

101
Q

More information on switches

A

Connect devices on a network toogether
Receive and forward data between devices
Are used within a LAN

102
Q

Describe managed switches

A

Allow more control over traffic
Allow for VLANs to be created
Managed switches are those used in an enterprise network
are managed remotely, using either a command-line interface or in some cases a GUI management interface.

103
Q

Describe unmanaged switches

A

Allow for more devices to be physically connected to LAN
few configuration options
fixed configuration
very little integration with other devices
cannot be managed remotely

104
Q

Describe access point

A

Access points (APs) are transmitter and receiver (transceiver) devices used to create a wireless LAN (WLAN)

Extends the wired network onto the wireless network

Makes forwarding decisions based on MAC address

105
Q

Additional information on access point

A

is typically a separate network device with a built-in antenna, transmitter, and adapter

use the wireless infrastructure network mode to provide a connection point between WLANs and a wired Ethernet LAN

typically have several ports,

106
Q

Describe patch panel

A

A collection of ports on a panel
Cables are terminated at patch panel
Allow connections from different locations
Patch cables are used to create connections

107
Q

Location of a patch panel

A

Are often rack mounted
Commonly 1U or 2 U
Centrally located

108
Q

Name patch panel types:

A 
Common amount of ports includes
12
24
48
Potentially more
109
Q

Name patch panel connectors

A 
RJ-45
Subscriber connector(SC)
Lucent Connector(LC)
110
Q

Definition of patch panel

A

A patch panel is a device to which the cables running through the walls from the hosts are connected. Then shorter cables called patch cables run from the patch panel to the switch or hub

111
Q

Describe firewalls

A

Control inbound and/or outbound network or shoot traffic
Use rules to allow or deny traffic
Are implemented with hardware or software
Can store session state for stateful filtering
can packet filter based upon ports or IP addresses

112
Q

Additional information on firewalls

A

Filters traffic by port number
Can encrypt traffic into/out of the network
Can proxy traffic
Most firewalls can be layer 3 devices

113
Q

Describe hardware firewalls

A

Dedicated hardware
Runs specialised software
Placed between your network and an untrusted network

114
Q

Describe software firewalls

A

Runs on a host
Only as secure as the underlying OS
Controls access per application
Works on a port level

115
Q

Describe Stateful firewalls

A

inspect contents and state of packets
better at detecting unusual/potentially malicious traffic
able to more intelligently filter traffic based upon context
require more memory and computational power

116
Q

Describe Stateless firewalls

A

Can be performed quickly
generally cheaper
use preset rules based upon source addresses, destination addresses and ports
unable to determine context

117
Q

Describe Next generation firewall(NGFW)

A

Looks to provide additional functionality on top of standard firewalls
ability to filter traffic based upon applications
intrusion prevention system detects and prevents attacks
gathers up-to-date threat information from an external source

118
Q

Describe Power over Ethernet (PoE)

A

Power provided on a ethernet cable
Power provided at the switch(Endspans)
One wire for both network and electricity

119
Q

Describe PoE injectors

A

A PoE injector is a device that can be used to provide PoE to a device when the switch does not support PoE

120
Q

Describe process of usage of PoE injectors

A

It plugs into the wall; then a line providing data and PoE is run to the device, and another cable runs to the switch

121
Q

Describe PoE switch

A

A PoE switch has the Power over Ethernet functionality built into it. This means you can power devices using network cables

A PoE switch provides power that can be used to run other devices via the Ethernet cabling

122
Q

Name PoE standards

A
  • 802.3af
  • 802.3at
  • 802.3bt
123
Q

Describe - 802.3af

A

Introduced in 2003
Original PoE standard
Provides 15.4 watts DC power, 350 mA max current

124
Q

Describe - 802.3at

A

Released in 2009
Provides 25.5 watts DC power, 600mA max current
Also known as PoE+

125
Q

Describe - 802.3bt

A 
Released in 2018
Type 3 (51W)
Type 4 (71.3W)
126
Q

Describe hub

A 
Operate on Level 1 of OSI model
Any received signal is sent to all other ports
Produce more traffic
Simpler and cheaper
Not often used anymore
127
Q

Describe active hub

A

Strength received signal
Can extend range of network
Have a higher power requirement

128
Q

Describe passive hub

A

Connect computers together on a physical evel
Do not strengthen signal
Will not increase range of network

129
Q

Additional information on hub

A

used in networks that use twisted-pair cabling to connect devices, and they can be used to join segments into larger networks

directs data packets to all devices connected to it, regardless of whether the data package is destined for the device

130
Q

additional info on passive hub

A

provide a pathway for the electrical signals to travel along

131
Q

additional info on active hub

A

providing a path for the data signals

regenerates the signal before it forwards it to all the connected devices

can buffer data before forwarding it.

132
Q

Definition of cable modem

A

is a hardware device that allows your computer to communicate with an Internet service provider over a landline connection.

It converts an analog signal to a digital signal for the purpose of granting access to broadband Internet.

133
Q

Describe cable modem

A

Runs over coaxial cables
speeds between 50 Mbps and 1 Gbps
often has a hybrid oof fiber and copper coaxial on backend

134
Q

Describe DSL modem(Digital subscriber line)

A

Runs over phone lines
speeds highly dependent on distance
commonly available with speeds between 5-100 Mbps

135
Q

Describe ONT (Optical network terminal)

A

Serves as a termination point for a fiber connection
allows client devices to connect via Ethernet or Wi-FI
More expensive than cable/DSL modem

136
Q

Additional information on ONT

A

ONT connects to a fiber connection
Cables/DSL modems ultizie copper wires
ONTs are often standalone units
ONTs do not have to modulate or demodulate

137
Q

Describe NIC ( Network interface card)

A

the fundamental network device(every device on the network has a NIC, computers, phones)

specific to the network type(Ethernet, WAN, wireless)

Often built-in to the motherboard

Many options(single port, multi port, copper fiber)

138
Q

Describe SDN(Software define networking)

A 
Separates software from hardware
Allows software to control the network
- Provisioning
- Configuration
- Management
139
Q

Describe components of SDN

A

Applications
Controllers
Physical networking devices

140
Q

Describe applications(SDN)

A

Software that interfaces with administrators

Provide information or take requests

141
Q

Describe controllers(SDN)

A

Take information from an application

Decide how packets should be routed based upon received information

142
Q

Describe physical networking devices(SDN)

A

Perform the functions of moving the actual data
Made up of physical switches, routers
Receives commands from a controller

143
Q

Describe 802.11a

A

Bandwidth up too 54 Mbps
operates in 5GHz frequency range
Less effective penetrating solid objects
Also referred to as Wi-Fi 2

144
Q

Describe 802.11b

A

Bandwidth up to 11Mbps
2.4ghz frequency
Susceptible to interference

145
Q

Describe 802.11g

A 
Emerged in 2002
Draws from 802.11a and 802.11b
Bandwidth up to 54Mbps
2.4Ghz frequency
backward compatible with 802.11b
146
Q

Describe 802.11n

A

Wireless N
Multiple signals and antennas
Better range
Backward compatible with 802.11b/g

147
Q

Describe 802.11ac (WiFi 5)

A 
improved bandwidth
Wider channels
Beamforming
Dual-band transmission
No backward compatibility
148
Q

Describe 802.11ax (WiFi 6)

A 
Dual-band wireless
Bandwidth up to 10Gbps 
2.4/5Ghz
Lower power consumption
Better range
149
Q

Describe NFC

A 
Contactless communication
Common in smartphones and tablets
Devices exchange data automatically
Limited range
Devices must be close
150
Q

Pros of NFC

A

Convenient
Seamless
Broad support
No pairing

151
Q

Cons of NFC

A

Cost

Security

152
Q

Describe Radio-frequency identification (RFID)

A 
Embedded chip and antenna
Tracking
Automatic identification and data capture(AIDC)
Tags and readers
Active/Passive
Various applications
153
Q

Pros of RFID

A

Global standard
Multiple items
Speed
No line of sight required

154
Q

Cons of RFID

A

Scanning issues

Security

155
Q

Definition of RFID

A

is a wireless, no-contact technology that makes use of NFC technology

. uses radio frequency chips and readers to manage inventory.

chips are placed on individual pieces or pallets of inventory.

RFID readers are placed throughout the location to communicate with the chips.

156
Q

Describe ARPT (RFID)

A

the active reader transmits signals and receives replies from passive tags

157
Q

Describe ARAT (RFID)

A

active tags are awoken with signals from the active reader.

158
Q

Describe DNS(Domain name system)

A

Convert names to IP addresses
Distributed naming system
Usually managed by the ISP or enterprise IT department
Converts names to IP addresses

159
Q

Describe DHCP(Dynamic Host configuration Protocol)

A

automatic IP address configuration on your local device

Common service, available on most home routers

Multiple DHCP in enterprise

160
Q

Describe file server(fileshare)

A

centralized storage of documents, videos, pictures and any other files

standard system of file management

Files can be accessed by computers on same network

161
Q

Describe print servers

A

Connect a printer to the network, provide printing services for all network devices

may be software in a computer, computer connected to the printer through it

may be built in to the printer

uses standard printing protocols(SMB, IPP and LPD)

162
Q

Describe Mail servers

A

Store your incoming mail and sending outgoing mail

Usually managed by the ISP or the enterprise IT department

use SMTP to send and receive email on behalf of users who possess mailboxes on the server.

users will use a client email protocol to retrieve their email from the server(POP3 or IMAP4)

163
Q

Describe Syslog

A

Standard for message logging, consolidated log

Usually a central logging receiver(integrated into the SIEM)

Need a lot of disk space

164
Q

Describe Web servers

A

Respond to browser requests

Uses standard web browsing protocols(HTTP/HTTPS)

Pages are built with HTML, HTML5

Web pages are stored on the server

165
Q

Describe Transmission Control Protocol(TCP)

A

Connection oriented protocol

Reliable delivery

Flow Control

166
Q

Describe TCP- connection oriented protocol

A

A formal connection setup and close

167
Q

Describe TCP- reliable delivery

A

Recovery from errors

Can manage out of order messages or retransmissions

168
Q

Describe TCP- flow control

A

The receiver can manage how much data is sent

169
Q

Describe User Datagram Protocol(UDP)

A

Connectionless protocol

Unreliable delivery

No flow control

170
Q

Describe UDP- Connectionless protocol

A

no formal open or close to the connection

171
Q

Describe UDP- unreliable delivery

A

no error recovery

no reordering of data or retransmissions

172
Q

Describe UDP- no flow control

A

sender determines the amount of data transmitted

173
Q

Reasons to use UDP

A

Real time communication

Connectionless protocols

the data might not get through

174
Q

Describe UDP- Real time communication

A

there’s no way to stop and send the data

time doesn’t stop for your network

175
Q

Describe UDP- Connectionless protocols

A

Examples:
DHCP
TFTP

176
Q

Describe UDP- the data might not get through

A

the application keeps track and decides what to do

it might not do anything

177
Q

Reasons to use TCP

A

Connection oriented protocol

The application doesn’t worry about out of order frames or missing data

178
Q

Describe TCP- Connection oriented protocol

A

Examples

HTTPS
SSH

179
Q

Describe TCP- application doesn’t worry about of order frames

A

TCP handles all the of the communication overhead

the application has one job

180
Q

Describe TCP and UDP

A

Transported inside of IP
Two ways to move data from place to place
OSI layer 4
Multiplexing

181
Q

Describe IPv4 sockets

A

Server IP address, protocol, server application port number

Client IP address, protocol, client port number

182
Q

Describe Non-ephemeral ports(permanent port numbers)

A

ports through 0 - 1023

usually on a server or service

183
Q

Describe ephemeral ports(temporary port numbers)

A

ports 1024 through 65 535

determined in real-time by the client

184
Q

Describe port numbers

A

TCP and UDP ports can be any number between 0 and 65, 535

Port numbers are for communication, not security

Service port numbers need to be well known

CompTIA+ (8 decks)

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