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CompTIA Network+ (N10-008) > Network Basics > Flashcards

Network Basics Flashcards

1
Q

What’s the purpose of networks?

A

The purpose of networks is to make connections between machines (sending data from one place to another)

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2
Q

What are examples of network?

A

Examples of network are:

smart watch and smart phone

tablet and Wi-Fi access point and internet

desktop and hub and switch and router and internet

(all of them are converged networks)

in olden days -

telephone network - (only making phone calls)

computer networks - (only transferring data over a digital network)

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3
Q

What kind of network traffic can you expect to see within converged networks?

A

Network traffic you can expect to see within converged networks are:

file sharing
video chatting (skype)
surfing the web
social media
streaming videos
e-mails
instant messages
phone calls

a lot of different things and a new types of traffic happening all the time as well because new things are being designed and added to our networks

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4
Q

What comprises our networks?

A

Networks are comprised of:

client
server
wireless access point
hub
switch
router
WAN Link
Media
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5
Q

What is client?

A

Client is a device used by an end-user to access network (any device that connects to the network)

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6
Q

What is server?

A

Server is a device that provides resources to the rest of the network (different servers provides different functions i.e. a web server, an email server, a file server, a chat server, a print server)

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7
Q

What is a hub?

A

A hub is an older technology that connects network devices together (using hubs can lead to increased network errors)

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8
Q

What is WAP?

A

Wireless access point (WAP) is a device that allows wireless devices to connect into a wired network

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9
Q

What is a switch?

A

A switch is a device that connects network devices together (like a next generation hub)

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10
Q

What is a router?

A

A router is a device that connects two different networks together and forwards traffic to and from a network

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11
Q

What is media?

A

Media connects two devices or a device to a switch port

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12
Q

What is WAN Link?

A

Wide Area Network (WAN) physically connects two geographically dispersed networks

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13
Q

What is client server model?

A

Client server model uses a dedicated server to provide access to files, scanners, printers, and other resources

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14
Q

What are benefits of client server model?

A

Benefits of client server model are:

Centralized administration

Easier management

Better scalability

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15
Q

What are drawbacks of client server model?

A

Drawbacks of client server model are:

Higher cost

Requires specialized OS

Requires dedicated resources

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16
Q

What is Peer-to-Peer Model?

A

In Peer-To-Peer Model peers share resources (files/printers) directly with others

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17
Q

What are benefits of Peer-To-Peer Model?

A

Benefits of Peer-To-Peer Model are:

Lower cost

No dedicated resources

No specialized OS

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18
Q

What are drawbacks of P2P Model?

A

Drawbacks of Peer-To-Peer Model are:

Decentralised management

Inefficient for large networks

Poor scalability

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19
Q

What is PAN?

A

Personal Area Network (PAN) is the smallest type of wired or wireless network that covers the least amount of area (i.e. Bluetooth, USB)

20
Q

What is LAN?

A

Local Area Network (LAN) connects components within a limited distance

21
Q

What is the number of Ethernet?

A

The number of Ethernet is (IEEE 802.3)

22
Q

What is the number of Wi-Fi?

A

The number of Wi-Fi is (IEEE 802.11)

23
Q

What is CAN ?

A

Campus Area Network (CAN) connects LANs that are building-centric across a university, industrial park, or business park

24
Q

What is MAN?

A

Metropolitan Area Network (MAN) connects scattered locations across a city or metro area

25
Q

What is WAN?

A

Wide Area Network (WAN) connects geographically disparate internal networks and consists of leased lines or VPNs

26
Q

Network types diagram

A
27
Q

What is Bus Topology?

A

Bus Topology uses a single cable where each device taps into by using either a vampire tap or a T-connector

28
Q

What is Ring Topology?

A

Ring Topology uses a cable running in a circular loop where each device connects to the ring but data travels in a singular direction

29
Q

What is Token Ring?

A

Token Ring is a ring topology that uses an electronic token to prevent collisions when communicating on the network

30
Q

What is FDDI?

A

Fiber Distributed Data Interface (FDDI) uses two counter-rotating rings for redundancy

(modern ring networks are usually FDDI networks)

31
Q

What is Star Topology?

A

Star Topology is a most popular physical LAN topology where devices connect to a single point

(if the central device fails, the entire network fails)

32
Q

What is Hub-and-Spoke topology?

A

Hub-and-Spoke topology is similar to Star but with WAN links instead of LAN connections and it is used for connecting multiple sites

33
Q

What is Full-Mesh Topology?

A

In Full-Mesh Topology optimal routing is always available as every node connects to every other node

34
Q

What is Partial-Mesh Topology?

A

Partial-Mesh Topology is a hybrid of the full-mesh and the hub-and-spoke topologies

35
Q

What is Infrastructure Mode?

A

Infrastructure mode uses a wireless access point as a centralised point and supports wireless security controls

36
Q

What is Ad Hoc Mode?

A

Ad Hoc Mode is a decentralised wireless network which creates P2P connections and does not require a router or access point

37
Q

What is Wireless Mesh Topology?

A

Wireless Mesh Topology is an interconnection of different types of nodes, devices, or radios

(creates redundant and reliable connections)

38
Q

What is Internet of things (IOT)?

A

Internet of things (IOT) consists of billions of physical devices around the world that are connected to the internet, all collecting and sharing data

39
Q

What is 802.11?

A

802.11 are wireless networks that can operate in infrastructure or ad hoc modes

40
Q

What is Bluetooth?

A

Bluetooth is a wireless technology that allows the exchange of data between different devices (low energy variant - reduced power consumption) (uses mesh topology)

41
Q

What is Radio-Frequency Identification (RFID)?

A

Radio-Frequency Identification (RFID) uses electromagnetic fields to read data stored in embedded tags

(i.e. magnetic stripe card in a hotel)

42
Q

What is Near-Field Communication (NFC)?

A

Near-Field Communication (NFC) enables two devices to communicate within a 4-cm range

43
Q

What is (IR)?

A

Infrared (IR) operates with line of sight

i.e. tv pilot

44
Q

What is Z-Wave?

A

Z-Wave provides short-range, low-latency data transfer with slower rates and less power consumption than Wi-Fi

(used in home-automation)

45
Q

What is ANT+?

A

ANT+ collects and transfers sensory data

sensors - i.e. collecting the temperature, how bright something is

CompTIA Network+ (N10-008) (1 decks)

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