Section 2 Flashcards

(34 cards)

1
Q

What is a network?

A

A network is 2+ computing devices that are connected in order to share data.

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2
Q

What are converged networks?

A

Networks that serve multiple purposes.

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3
Q

What is a client?

A

A client is any device used by an end-user to connect to a network.

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4
Q

What is a server?

A

A server is a device that provides resources to the rest of the network.

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5
Q

What is a hub?

A

A hub is an older technology that connects network devices together.

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6
Q

What is a WAP? And what does it stand for?

A

WAP stands for a Wireless Access Point.

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

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7
Q

What is a switch?

A

A switch is a device that connects network devices together to share information and talk to each-other.

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8
Q

What is a Router?

A

A router is a device that connects networks to each other, and forwards traffic to and from a network.

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9
Q

What is network media? Give examples

A

Network media refers to the communication channels used to interconnect nodes on a network.

Examples include copper cable, fibre optic cables, wireless transmission

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10
Q

What does WAN stand for?

What is a WAN used for?

A

WAN stands for a Wide Area Network.

A WAN connects an internal network to an external one. It has worldwide coverage.

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11
Q

What is the Client/Server Model?

Advantages / Disadvantages

A

A resource model that uses a dedicated server to provide access to resources on a network.

Advantages: Easier administration/backup, better scalability, easier management.

Disadvantages: Higher cost, requires dedicated resources.

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12
Q

What is the Peer-To-Peer model?

Advantages / Disadvantages

A

A resource model where peers share resources directly with each other.

Advantages: low cost, no dedicated resources.

Disadvantages: inefficient for larger networks, administration and backup is difficult.

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13
Q

What does PAN stand for?

What is a PAN? Give Example

A

PAN stands for Personal Area Network.

A PAN is a type of network that covers a very small area. (Example Bluetooth)

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14
Q

What does LAN stand for?

What is a LAN? (Give example)

A

LAN stands for a Local Area Network.

A LAN is a network that covers a limited distance (for example a house)

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15
Q

What does CAN Stand for?

What is a CAN? (Example)

A

CAN stands for Campus Area Network.

It is a type of network that connects LANs across a certain area. (Example
University)

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16
Q

What does MAN stand for?

What is a MAN? Examples

A

MAN stands for Metropolitan Area Network.

It is a network that spans the size of a metropolitan area (example City)

17
Q

What does a WAN stand for?

What is a WAN (examples)

A

WAN stands for a Wide Area Network.

A WAN is a network that has worldwide coverage.

18
Q

What is the Ethernet Standard?

19
Q

What is the Wi-Fi standard?

20
Q

Describe a Bus network topology.

A

Bud topology uses a single cable, each device taps into the main cable.

21
Q

Describe a Ring network topology.

A

Ring topology uses a cable running in a circular loop, each device connects to the ring and data travels in a single direction.

22
Q

What is FDDI ring?

A

For ring topology: uses two counter rotating rings, used for redundancy.

23
Q

Describe Star network topology.

A

The most popular LAN topology. Devices connect to a single point. If the central device fails the whole network fails.

24
Q

Describe Hub-and-Spoke network Topology.

A

Similar to star topology but with WAN links instead of LAN connectors. Used for connecting multiple sites.

25
Describe Full-Mesh network topology.
Full-mesh is where every node is interconnected. It is suitable for small networks and allows optimal routing.
26
Describe Partial-Mesh network topology.
It is a hybrid of full-mesh and hub-and-spoke topologies. Allows for optimal routing between some sites. Better refinance than single hub-and-spoke.
27
What is infrastructure mode?
A wireless network topology that uses a Wireless Access Point as the centralised point.
28
What is Ad-Hoc mode?
A wireless decentralised network topology that uses peer-to-peer. It does not require router or access point.
29
Describe Wireless Mesh Topology.
A wireless topology that involves interconnection of different nodes, devices or radios. Creates redundant and reliable connections.
30
What does RFID stand for? Describe it
Stands for Radio Frequency Identification. It is a technology that uses electromagnetic fields to read data stored in embedded tags.
31
What does NFC stand for? What is NFC?
Stands for Near Field Communication. It is a technology that allows two devices to communicate within a very short range.
32
How does infrared technology work? (Example)
Operates in line of sight. Example TV remote
33
What is Z-Wave? What is it used for
It is a type of technology that provides short range, low latency data transfer. Mainly used for home automation (lights off etc)
34
What is ANT+?
It is a technology used for the collection and transfer of sensory data.