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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
Q

Key features of satellite

A

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
Q

Positives of satellite

A

Available to businesses without access to landline internet
Suitable speed for limited audio and/or video conferencing
Provides global coverage

27
Q

Describe WISP(Wireless Internet Service Provider)

A

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
Q

List common network types

A

local area networks (LANs)
wide area networks (WANs)
personal area networks

29
Q

Describe Local Area Networks(LAN)

A 
Connects devices to enable data and resource sharing
Uses private addressing scheme
Connected by switches
Very fast data transmission
Easy design and maintenance
30
Q

Describe Wide Area Networks(WAN)

A 
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
Q

Describe Metropolitan Area Networks(MAN)

A 
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
Q

Describe Wireless Local Area Network(WLAN)

A

Wireless connectivity for devices
Uses high frequency radio waves
Generally includes internet access point
Allows user mobility

33
Q

Describe Personal Area Networks(PAN)

A 
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
Q

Describe Storage Area Network(SAN)

A

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
Q

Describe Crimpers

A

Strip, align, and cut cables

Commonly used for attaching connectors to various cables

36
Q

Describe crimping

A

Stripping the network cable jacket

Aligning and placing wires in a connector

37
Q

Further info on crimping

A

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
Q

Describe cable strippers process

A

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
Q

Describe Cable stripping

A

There are numerous cable stripper types and designs

Some models consist of a crimping tool and cable stripper

40
Q

Describe Wi-FI Analyser

A

Discover Wi-Fi problems and optimize performance

Test antenna location and device configuration

41
Q

Describe Wi-Fi analysis

A

Coverage
Bandwidth and speed
Connectivity
Security

42
Q

Key benefits of Wi-Fi analysis

A

Reveals specific data

Useful for Wi-Fi Optimization

43
Q

Describe Wi-FI Analyzer Categories

A

Hardware Wi-Fi signal analysers

Wi-Fi analyser apps

44
Q

Describe Tone generator

A

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
Q

Describe probe

A

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
Q

Describe cable tester

A

Tests Cable connectivity

Verifies cable setup

47
Q

Describe basic cable testers

A

Verify conductive path

Verify correct wiring of connectors

48
Q

Describe advanced cable testers

A

Resistance
Signal attenuation
Noise/interference

49
Q

Describe punch down tool

A 
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
Q

Describe preparing the cable

A

Remove the cable jacket to expose the wires
Fan out the cable pairs
Straighten the pairs and place the wires in the slots

51
Q

Describe terminating the wires

A

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
Q

Describe inspecting the wires

A

Inspect each wire to ensure there is no overhang
Wires should be securely in place
Trace any excess wire with a wire cutter

53
Q

Describe Network Traffic Access Point(TAP)

A

Connect to a specific point in a network
Access data for testing or troubleshooting
Monitoring of network traffic between two points

54
Q

Describe Loopback plug

A 
Also referred to as loopback adapter
Device used to test ports
Network
USB
Serial
Parallel
55
Q

Describe Loopback Plug characterization

A

Not a crossover cable

Device is classified as both male and female

CompTIA+ (8 decks)

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