Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Comptia A+ Core 1 > 2.0 Networking > Flashcards

2.0 Networking Flashcards

1
Q

What is a NIC?

A

Network Interface Card(NIC). Provides an ethernet connection to the network.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is a Hub?

A

A hub is an older piece of networking technology that connects multiple ethernet devices together and making them act as a single network segment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a Switch?

A

Networking hardware that connects devices on a computer network by using packet switching to receive and forward data to the destination device. Switches are smart hubs that remember the ports that are connected to them.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Types of Switches?

A

Unmanaged Switch and Managed Switch.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a Unmanaged Switch?

A

An unmanaged switch performs its function without requiring a configuration.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is a Managed Switch?

A

A managed switch performs its functions with configuration.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a Wireless Access Point?

A

A device that allows wireless devices to connect to a wired network.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a Router?

A

Used to connect different networks together.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a Firewall?

A

Scans and blocks traffic that enters or leaves a network.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a UTM?

A

Unified Threat Management(UTM). Contains firewall features

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is Patch Panel?

A

A device that allows cable network jacks from a wall into a central area.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is PoE?

A

Power Over Ethernet(PoE). Supplies electrical power from a switch port over an ordinary data cable to a power device.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the three levels/types of PoE?

A

802.3af, 802.3at(PoE+), 802.3bt(PoE++).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is 802.3af?

A

The oldest version of PoE. Allows the least amount of power to be drawn.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is 802.3at?

A

Also known as PoE+. A level of PoE that allows power to devices to draw up 25W.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is 802.3bt?

A

Also known as PoE++. A level of PoE used to supply power of up to 51W (type 3) or 73W(type 4 ).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the three things to remember about PoE?

A

Use a switch that supports PoE. Use proper cabling in place for support (Cat 6 or above). Power device to use the data and power coming from the ethernet cable.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is a Cable Modem?

A

A device that translates coaxial cable signals into radio frequency waves. Hybrid fiber-coaxial(HFC), Data-Over-Cable Service Interface(DOCSIS) Think Cable Modem.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is a DSL modem?

A

A Digital Subscriber Line(DSL) modem. A device that translates coacial cable signals into phone lines.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is a SDN?

A

Software Define Networking(SDN). Way of virtualizing the network hardware.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is a PAN?

A

Personal Area Network(PAN). Smallest type of wired or wireless network and covers the least amount of area, usually 3 to 10 feet. Examples: Bluetooth, USB.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is a LAN?

A

Local Area Network(LAN). Connects componenets within a limited distance, usually up to a few hundred feet. Room or building.
Examples: Home WiFi, Office Network.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is a CAN?

A

Campus Area Network(CAN). Connects LANs that are building centric across a university, industrial park or business park. Usually up to few miles and across multiple buildings.
Examples: A college Campus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is a WAN?

A

Wide Area Network(WAN). Connects geographically disparate internal networks and consists of leased lines of VPNS the largest type of network. Usually a worldwide coverage. Country or Worldwide.
Examples: the internet itself. And is the largest WAN available.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is a WLAN?

A

Wireless Local Area Network(WLAN). A wireless distribution method for two or more devices that creates a local area network using wireless frequencies.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What is a SAN?

A

Storage Area Network(SAN). Provisions access to configurable pools of storage devices that can be used by applications servers. SAN will use technologies such as Internet SCSI(ISCSI), Fiber Channel(FC).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

what is SoHo?

A

Small Office, Home Office(SoHo) LAN. Uses a centralized server or simply provides clients access to local devices like printers, file storage, or the internet.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What is IoT?

A

Internet of Things(IoT). A global network of appliances and personal devices that have been equipped with sensors, software, and network connectivity to report state and configuration. Examples: Smart Lightbulbs, Smart Thermostats.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What are the categories and components of IoT?

A

Hub and control systems, Smart devices, Wearables, Sensors.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

The two types of Twisted Pair Cabling

A

(UTP)Unshielded twisted pair, (STP)Shielded twisted pair.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Unshielded Twisted Pair

A

UTP doesn’t use any metal in the shielding and therefore UTP is cheaper.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Shielded Twisted Pair

A

Same as UTP, except each twisted pair inside the cable sheath is wrapped inside metal foil, and will also have a braided metallic shielding wrapping around each pair. Expensive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

The two types of connectors used with twisted pair

A

RJ45(common), RJ11

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

What is RJ in RJ45.

A

Registered Jack(RJ). Carries voice or data which specifies the standards a device needs to meet in order to connect to the phone or data network.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

What is Bandwidth?

A

The theoretical measure of how much data could be transferred from a source to its destination.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

What is throughput?

A

The actual measure of how much data is successfully transferred from a source to its destination.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

What are the Cabling CATegories?

A

Cat5, Cat5e, Cat6, Cat6a, Cat7, Cat8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

What is the Ethernet Standard

A

A designation given to a particular category that provides the ability to understand the bandwidth and the cable type to be used.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Three Types of physical construction cables

A

Direct Burial, Plenum, Non-Plenum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Direct Burial Cable

A

Cable with a stronger sheathing and jack that can withstand extreme weather conditions. Goes directly into the ground under dirt, cement, and concrete.

41
Q

Plenum Cable/Non-Plenum

A

A special UTP, STP coating that provides a fire-retardant chemical layer to the other insulting jacket. Goes in ceilings, walls, air ducts, and raised floors. Non-Plenum is UTP and STP.

42
Q

Fiber Optic Cable

A

Uses light from an LED or laser to transmit information through a thin glass fiber.

43
Q

Types of Fiber Optic Cable

A

Single Mode(SMF), Multimode(MMF)

44
Q

Single Mode(SMF)

A

Used for longer distances and has smaller core size which allows only a single mode of travel for the light signal. SMF core size 8.3-10u(microns). Expensive with Yellow Shealth

45
Q

Multimode(MMF)

A

Used for shorter distances and has larger core size which allows for multiple modes of travel for the light signal. MMF core size 50-100u in diameter. cheap with blue or orange shealth.

46
Q

Fiber Optic Cable Connecter Types

A

Subscriber Connector(Stick and Click), Straight Tip Connector(Stick and Twist), Lucent Connector(Love Connector), MTRJ(Mechanical Transfer Registered Jack).

47
Q

Coaxial Cable

A

One the oldest categories of copper media or cabling, still used today.

48
Q

Coaxial Cable Parts

A

Center Core, Insulator, Metallic Shield, Braided metal shielding, Plastic jacket.

49
Q

Coaxial Cable Types

A

RG-6, RG-59

50
Q

Coaxial Cable Connectors

A

F-type, Bayonet Neill-Concelman(BNC/British Naval), Twinaxial Cable

51
Q

The three ways to perform wireless spectrum transmission

A

Direct-Sequence Spread Spectrum(DSSS), Frequency-Hopping Spread Spectrum(FHSS), Orthogonal Frequency Division Multiplexing(OFDM).

52
Q

Direct-Sequence Spread Spectrum(DSSS)

A

Wireless spectrum that modulates data over an entire range of frequencies using a series of signals known as chips. not used very often.

53
Q

Frequency-Hopping Spread Spectrum(FHSS)

A

Wireless spectrum that allows devices to hop between predetermined frequencies. Good for security but slows down bandwidth

54
Q

Orthogonal Frequency Division Multiplexing(OFDM)

A

Wirelesss spectrum that uses a slow modulation rate with simultaneous transmissions over 52 different data streams. Most commonly used.

55
Q

Wireless networking spectrums

A

2.4GHz, and 5GHz

56
Q

What is a channel in wireless networking

A

A virtual medium through which wireless networks can send and receive data.

57
Q

What is channel bonding in wireless networking.

A

Allows for creation of a wider channel by merging neighboring channels into one. But can increases interference.

58
Q

Wireless networking Standards

A

802.11a(5GHz,54 Mbps), 802.11b(2.4GHz,11 Mbps), 802.11g(2.4GHz,54 Mbps), 802.11n(2.4/5GHz,150 Mbps), 802.11ac(5GHz,3 Gbps), 802.11ax(2.4/5/6GHz,9.6 Gbps)

59
Q

Multiple-input and Multiple-Output(MIMO)

A

Uses multiple antennas to send and receive data than it could with a single antenna.

60
Q

Multiple User Multiple Input Multiple Output(MUMIMO)

A

Allows multiple users to access the wireless network and access point at the same time. Newer version of MIMO.

61
Q

Radio Frequency Interference(RFI)

A

Occurs when there are similar frequencies to wireless networks in the area. As signal decreases in strength or interference increases, the signal-to-noise ratio worsens.

62
Q

The three types of wireless security protocols.

A

Wired Equivalent Privacy(WEP), Wi-Fi Protected Access(WPA), Wi-Fi Protected Access 2(WPA2).

63
Q

What is WEP in wireless security

A

Wired Equivalent Privacy(WEP): Original 802.11 wireless security standard which is an increase in security protocol.

64
Q

What is WPA in wireless security

A

Wi-Fi Protected Access(WPA): Replaced WEP and follows the Temporal Key Integrity Protocol(TKIP). Still considered weak for today’s standards

65
Q

What is WPA2 in wireless security

A

Wi-Fi Protected Access 2(WPA2): Created as part of IEEE 802.11i standard and requires stronger encryption and integrity checking through CCMP.

66
Q

MAC Address Filtering

A

Configures an access point with listing of permitted MAC address (like an ACL)

67
Q

Disabling SSID Broadcast

A

Configures an access point not to broadcast the name of the wireless LAN.

68
Q

Types of Fixed Wireless

A

Wi-Fi(802.11), Cellular, Microwave, Satellite

69
Q

Wi-Fi(802.11) Fixed Wireless

A

Creates a point to point connections from one building to another over a relatively short distance.

70
Q

Cellular Fixed Wireless

A

Uses a larger antenna and a larger hotspot powered by a power outlet within an office or home.

71
Q

Microwave Fixed Wireless

A

Creates a point to point connection between two or more buildings that have larger distances. Up to 40 miles

72
Q

Satellite Fixed Wireless

A

A long range and fixed wireless solution that can go miles. Low earth orbit more satellites, Geosynchronous Orbit one satellite covers more

73
Q

What is NFC?

A

Near Field Communication(NFC). Uses radio frequency to send electromagnetic charge containing the transaction data over a short distance.

74
Q

What is RFID?

A

A form of radio frequency transmission modified for use in authentication systems.

75
Q

What is IrDA?

A

Infrared Data(IrDA). Older tech, allows two devices to communicate using line of sight communication in the infrared spectrum.

76
Q

What is Bluetooth?

A

Bluetooth creates a personal area network over 2.4GHz to allow for wireless connectivity. Replaced infrared.

77
Q

DSL and ISP

A

(ISP)Internet Service Provider. (DSL)Dial-up internet oldest type of WAN(Wide Area Network).

78
Q

Three types of Digital Subscriber Line(DSL)

A

Asymmetric DSL(ADSL), Symmetric DSL(SDSL), Very High Bit-rate DSL(VDSL).

79
Q

Asymmetric DSL(ADSL)

A

Has different speeds of download and upload. Maximizes download - minimizes uploads.

80
Q

Symmetric DSL(SDSL)

A

Has equal speeds of download and upload.

81
Q

Very High Bit-Rate DSL(VDSL)

A

Has high speeds of download and upload. 50Mbps download, 10Mbps upload.

82
Q

Fiber Connections

A

Fiber to the Curb(FTTC), Fiber To The Premises(FTTP).

83
Q

Fiber to the Curb(FTTC)

A

Runs a fiber optic cable from an internet provider access point to curb.

84
Q

Fiber To The Premises(FTTP)

A

Fiber Optic that connects directly to a building and connects to an optical network terminal(ONT: Physcial devices that convert optical signals to electrical signals)

85
Q

What does the “G” in 5G mean

A

Refers to the generation of cellular technology being used.

86
Q

What is LTE

A

Long-Term Evolution that came out with 4G, and has speeds of 100Mbps. Then came LTE-A speed was 1Gbps.

87
Q

the three 5G bands

A

Low-band, Mid-band, High-band

88
Q

Low-band 5G

A

Lowest 5G band, has longer range. 600-850 MHz, 30-250 Mbps.

89
Q

Mid-band 5G

A

Most Common 5G band. 2.5-3.7GHz, 100-900Mbps.

90
Q

High-band 5G

A

highest 5G band, 25-39 GHz, 1Gbps

91
Q

WISP Connections

A

Uses microwave beams of radio waves in the microwave frequency range to transmit information between two fixed locations

92
Q

Satellite Connections

A

A method of using communication satellites located in space to connect a user to the internet. Seen on rural homes in the country.

93
Q

What is TCP/IP

A

Transmission Control Protocol/Internet Protocol. A set of standardized protocol/or layers used to interconnect network devices on the internet.

94
Q

What are the TCP/IP protocols/layers

A

Link/Network Interface Layer, Internet Layer, Transport Layer, Application layer.

95
Q

Link/Network Interface Layer of TCP/IP

A

Lowest layer of TCP/IP. Puts fames in the physical network’s transmission media. Data can only travel through the local area network.

96
Q

Internet Layer of TCP/IP

A

Second Layer of TCP/IP. Used to address packets and route them access the network.

97
Q

Transport Layer of TCP/IP

A

Third Layer of TCP/IP. Shows how to send the packets.

98
Q

Application Layer of TCP/IP

A

Fourth and top layer of TCP/IP. Contains all the protocols that perform higher-level functions. And performs the function e.g. sending an email, file transfer.

99
Q

The two types of Transport Lays in TCP/IP

A

Transmission Control Protocol(TCP)guaranteed delivery of data. User Datagram Protocol(UDP)connectionless protocol faster, data delivery not guaranteed.

Comptia A+ Core 1 (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions