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CompTIA+ > CompTIA A+ Core 1: Networking Concepts & Configurations > Flashcards

CompTIA A+ Core 1: Networking Concepts & Configurations Flashcards

1
Q

Describe IP address

A

Required for network communication

Unique for every device

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2
Q

What are the two types of IP address

A

Dynamic IP address

Static IP address

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3
Q

Basic required settings

A

IP address
Subnet mask
Default gateway

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4
Q

IP address features

A

32 bit logical address
4 octets of 8 bits
Network ID and Host ID
Determined by subnet mask

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5
Q

Describe subnet mask

A

Works with IP address
Determines network size
SOHO default configuration 255.255.255.0

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6
Q

Describe default gateway

A

Router IP address
Provides internet access
Subnet mask determines if a request should be sent to the default gateway

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7
Q

Describe IPv6

A

3.2 x 10^38 possible addresses
128 bit addresses
Large pool for the foreseeable future

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8
Q

Describe IPv6 Format

A

Site prefix
Subnet ID
Interface ID

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9
Q

Describe name server records

A

List servers for domain
Permit other name servers
More than one name server

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10
Q

Describe DMARC(Domain-based Message Authentication, Reporting and Conformance )

A

Protects against phishing and spoofing
Uses SPF and DKIM to check message authenticity
Helps mail systems to identify what to do with email that fail SPF/DKIM checks

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11
Q

Describe Text(TXT) record

A

Additional information about a named service
Sender Policy Framework (SPF)
Domain Keys Identified Mail(DKIM)

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12
Q

Describe VLANs

A

Virtual local area networks (VLANs) are logical subdivisions of a switch that segregate ports from one another as if they were in different LANs

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13
Q

Describe key features of VPN

A

Encrypted connection
Safely transmits sensitive data
Prevents unauthorized eavesdropping
Enables remote work

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14
Q

List Common internet connection types

A 
satellite
 fiber, cable
 dsl
cellular
 wireless internet service provider
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15
Q

Describe fiber optic

A

Fast and reliable
25Mbps to 1-5Gbps download speeds
5-880Mbps upload speeds
Can be combined with both TV and phone service

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16
Q

Key feautres of fiber optic

A

Modem or gateway device used to connect offices/devices
Fiber uses light beams to transmit data
Faster and more reliable than DSL or cable

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17
Q

Positives of fiber optic

A

Suitable for heavy file sharing, streaming, and backup to cloud
Frequent use of VoIP services or video conferencing
Capacity for server hosting and complex cloud services

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18
Q

Describe cable

A

Traditionally uses coaxial cable
20Mbps-1Gbps download speeds
5-100Mbps upload speeds
Combined with TV service

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19
Q

Positivises of cable

A

Suitable for moderate file sharing, streaming and backup to cloud
Use of VoIP services or video conferencing
Fast download speeds, moderate upload speeds

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20
Q

Describe DSL(Digital subscriber line)

A

Amongst the first widely used broadband services
Uses existing copper phone lines
Download speeds 1 - 500Mbps
Upload speeds 384kbps to 10Mbps

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21
Q

Key features of DSL

A

Connection had to be established
Uses local or wireless connections
Provider infrastructure

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22
Q

Positives of DSL

A

Suitable for light to moderate file sharing, streaming and backup to cloud
Capacity for audio and video conferencing
Fast download speeds, but slower than fiber or cable

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23
Q

Describe cellular

A

Cellular networks are the networks over which mobile phones operate
Referred to as cellular as the network is split into cells
Provides voice and data
Good coverage area
high speed

24
Q

Describe satellite

A

Provides internet access in rural and remote areas where landline internet connectivity isn’t available

25
Key features of satellite
1-100 Mbps download speeds and 1-4 Mbps upload speeds Leased monthly and can be expensive Requires a satellite dish Data provided by ISPs operating earth orbiting stations
26
Positives of satellite
Available to businesses without access to landline internet Suitable speed for limited audio and/or video conferencing Provides global coverage
27
Describe WISP(Wireless Internet Service Provider)
Uses wireless technology to provide internet service also referred to as long-range wireless networks Relatively inexpensive way to provide Internet to certain communities
28
List common network types
local area networks (LANs) wide area networks (WANs) personal area networks
29
Describe Local Area Networks(LAN)
``` Connects devices to enable data and resource sharing Uses private addressing scheme Connected by switches Very fast data transmission Easy design and maintenance ```
30
Describe Wide Area Networks(WAN)
``` Covers large geographic area Supports high speed Reliavetly expensive to implement Two types-switched WAN and point-to-point WAN Challenging to design and maintain ```
31
Describe Metropolitan Area Networks(MAN)
``` Covers area larger than LAN, but smaller than WAN Covers a regional geographical rea Designed for high-speed connectivity Hard to design and maintain Lower fault tolerance ```
32
Describe Wireless Local Area Network(WLAN)
Wireless connectivity for devices Uses high frequency radio waves Generally includes internet access point Allows user mobility
33
Describe Personal Area Networks(PAN)
``` Network specific to an individual Generally includes a variety of devices Typically managed from one computer Can be accessed by any device Bluetooth devices ```
34
Describe Storage Area Network(SAN)
Dedicated high-speed network Allows network access to high-performance storage Composed of devices connected with assorted technologies, protocols, and topologies Storage appears local to the host Can span multiple sites
35
Describe Crimpers
Strip, align, and cut cables | Commonly used for attaching connectors to various cables
36
Describe crimping
Stripping the network cable jacket | Aligning and placing wires in a connector
37
Further info on crimping
Ethernet Cabling Connectors have sharp metal prongs Connectors are secured permanently to cable when crimped Crimpers also exist for coaxial cables and fiber connections
38
Describe cable strippers process
A cable first need to be stripped of its jacket before crimping a connector to the end of the cable Once stripped, the exposed wires need to be aligned and put into the connector
39
Describe Cable stripping
There are numerous cable stripper types and designs | Some models consist of a crimping tool and cable stripper
40
Describe Wi-FI Analyser
Discover Wi-Fi problems and optimize performance | Test antenna location and device configuration
41
Describe Wi-Fi analysis
Coverage Bandwidth and speed Connectivity Security
42
Key benefits of Wi-Fi analysis
Reveals specific data | Useful for Wi-Fi Optimization
43
Describe Wi-FI Analyzer Categories
Hardware Wi-Fi signal analysers | Wi-Fi analyser apps
44
Describe Tone generator
Used to identify end points of cable runs Allows a tone to be placed on one end of the cable the tone is used to locate the other end of the wire
45
Describe probe
Used to trace the tone Once the cable has been identified, it will play a tone Each cable end must be probed individually Also used to identify continuity in a cable
46
Describe cable tester
Tests Cable connectivity | Verifies cable setup
47
Describe basic cable testers
Verify conductive path | Verify correct wiring of connectors
48
Describe advanced cable testers
Resistance Signal attenuation Noise/interference
49
Describe punch down tool
``` Also referred to as krone tool Hand tool used to connect network cables to Patch panels Punch down blocks Keystone modules Surface mount boxes ```
50
Describe preparing the cable
Remove the cable jacket to expose the wires Fan out the cable pairs Straighten the pairs and place the wires in the slots
51
Describe terminating the wires
Using the Punch Down Tool Press down on the wires, this will also cut any excess wire Ensure the punch is not pefromed on an angle
52
Describe inspecting the wires
Inspect each wire to ensure there is no overhang Wires should be securely in place Trace any excess wire with a wire cutter
53
Describe Network Traffic Access Point(TAP)
Connect to a specific point in a network Access data for testing or troubleshooting Monitoring of network traffic between two points
54
Describe Loopback plug
``` Also referred to as loopback adapter Device used to test ports Network USB Serial Parallel ```
55
Describe Loopback Plug characterization
Not a crossover cable | Device is classified as both male and female

CompTIA+ (8 decks)

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